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1.
J Neurochem ; 168(9): 2893-2907, 2024 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-38934224

RESUMEN

Gut dysbiosis is linked to metabolic and neurodegenerative diseases and comprises a plausible link between high-fat diet (HFD) and brain dysfunction. Here we show that gut microbiota modulation by either antibiotic treatment for 5 weeks or a brief 3-day fecal microbiota transplantation (FMT) regimen from low-fat (control) diet-fed mice decreased weight gain, adipose tissue hypertrophy, and glucose intolerance induced by HFD in C57BL/6 male mice. Notably, gut microbiota modulation by FMT completely reversed impaired recognition memory induced by HFD, whereas modulation by antibiotics had less pronounced effect. Improvement in recognition memory by FMT was accompanied by decreased HFD-induced astrogliosis in the hippocampal cornu ammonis region. Gut microbiome composition analysis indicated that HFD diminished microbiota diversity compared to control diet, whereas FMT partially restored the phyla diversity. Our findings reinforce the role of the gut microbiota on HFD-induced cognitive impairment and suggest that modulating the gut microbiota may be an effective strategy to prevent metabolic and cognitive dysfunction associated with unfavorable dietary patterns.


Asunto(s)
Dieta Alta en Grasa , Trasplante de Microbiota Fecal , Microbioma Gastrointestinal , Trastornos de la Memoria , Ratones Endogámicos C57BL , Animales , Dieta Alta en Grasa/efectos adversos , Trasplante de Microbiota Fecal/métodos , Masculino , Trastornos de la Memoria/prevención & control , Trastornos de la Memoria/etiología , Ratones , Microbioma Gastrointestinal/fisiología , Hipocampo , Intolerancia a la Glucosa
2.
Am J Primatol ; 86(2): e23585, 2024 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-38108097

RESUMEN

The ability of a species to withstand human impact depends on its life history characteristics, including social, ranging, and reproductive activity. The genera Lagothrix and Cacajao are more susceptible to anthropic action than small-sized primates due to their slower life histories, more restricted geographical ranges, and lower population densities. This narrative literature review aimed to gather scientific information available from the last 60 years on the reproductive biology of females of the genera Lagothrix and Cacajao. Most studies on the genus Lagothrix, mainly focused on L. lagothricha and L. l. poeppigii, present important advances on reproductive strategies, reproductive productivity, functional morphology and physiology, including seasonality, sexual cycle, gestation and fetal development in captive and free-living populations. Contrary, there is much less known about the reproductive biology of the genus Cacajao, with studies on free-living C. calvus and C. melanocephalus highlighting reproductive behavior, and basic description of the sexual cycle, gestation, and lactation. Unfortunately, the morphology of the female genital organs is only described in C. calvus, and there is still scarce information about the menstrual activity and the placenta. This literature review encourages primatologists, morphophysiologists, reproductive specialists, and ecologists to conduct comprehensive studies of these species to better understand the gaps in knowledge about reproduction, their relationship with their environment, including climatic and social variables. Understanding the integrative reproductive biology of these species will be a clue for improving the assessment of the resilience capacity of free-living populations and, consequently, establishing more appropriate management programs, and for the development of ex situ management techniques for the conservation of the species.


Asunto(s)
Atelinae , Pitheciidae , Embarazo , Humanos , Femenino , Animales , Ciclo Menstrual , Reproducción , Atelinae/fisiología , Pitheciidae/fisiología , Placenta
3.
J Med Primatol ; 52(3): 170-185, 2023 06.
Artículo en Inglés | MEDLINE | ID: mdl-37078442

RESUMEN

BACKGROUND: Evaluation of blood parameters in captive non-human primates (NHPs) is crucial for monitoring their health and ensuring that their environment meets their physiological requirements. METHODS: We performed hemogram, serum biochemistry, and parasitological exams in 20 howler monkeys and 21 capuchin monkeys. RESULTS: In both species, over 50% of the individuals presented at least one parasite. There was a negative effect of age on red blood cell (RBC), white blood cell, platelets, total protein, globulin, and alkaline phosphatase, and a positive effect on the A:G ratio, gamma-glutamyl transferase, and mean platelet volume (MPV). Capuchin monkeys presented the highest platelets and alanine aminotransferase (ALT) values and howler monkeys presented the highest MPV, aspartate aminotransferase, ALT, amylase, glucose, bilirubin, and triglycerides values. We observed an interaction between species and sex on RBC, Htc, mean corpuscular hemoglobin concentration, and cholesterol. CONCLUSIONS: Species differences found in blood parameters may reflect differences in physiological adaptations associated with ecological and morphological traits and are clinically relevant for evaluating animal health and the suitability of breeding programs.


Asunto(s)
Alouatta caraya , Alouatta , Animales , Alouatta/fisiología , Cebus , Sapajus apella , Eritrocitos
4.
Curr Genomics ; 24(5): 330-335, 2023 Dec 20.
Artículo en Inglés | MEDLINE | ID: mdl-38235354

RESUMEN

Background: Dysferlinopathies represent a group of limb girdle or distal muscular dystrophies with an autosomal-recessive inheritance pattern resulting from the presence of pathogenic variants in the dysferlin gene (DYSF). Objective: In this work, we describe a population from a small city in Brazil carrying the c.5979dupA pathogenic variant of DYSF responsible for limb girdle muscular dystrophy type 2R and distal muscular dystrophy. Methods: Genotyping analyses were performed by qPCR using customized probe complementary to the region with the duplication under analysis in the DYSF. Results: A total of 104 individuals were examined. c.5979dupA was identified in 48 (46.15%) individuals. Twenty-three (22%) were homozygotes, among whom 13 (56.5%) were female. A total of 91.3% (21) of homozygous individuals had a positive family history, and seven (30.4%) reported consanguineous marriages. Twenty-five (24%) individuals were heterozygous (25.8±16 years) for the same variant, among whom 15 (60%) were female. The mean CK level was 697 IU for homozygotes, 140.5 IU for heterozygotes and 176 IU for wild-type homo-zygotes. The weakness distribution pattern showed 17.3% of individuals with a proximal pattern, 13% with a distal pattern and 69.6% with a mixed pattern. Fatigue was present in 15 homozygotes and one heterozygote. Conclusion: The high prevalence of this variant in individuals from this small community can be explained by a possible founder effect associated with historical, geographical and cultural aspects.

5.
J Med Primatol ; 51(4): 223-233, 2022 08.
Artículo en Inglés | MEDLINE | ID: mdl-35661374

RESUMEN

BACKGROUND: Comparative studies of kidney morphophysiology in nonhuman primates can help us investigate interspecies differences in growth and aging patterns. METHODS: We tested the effect of age and sex in renal morphophysiology in 21 Alouatta caraya and 21 Sapajus apella (age range = 0.5-26 years) by ultrasound, red blood cell (RBC) count, and kidney function tests. RESULTS: A. caraya had greater growth rate and absolute renal volume than S. apella, but the latter showed a greater relative renal volume and RBC count. There was a negative relationship between RBC and age, a positive relationship between creatinine and body mass, and an apparent negative relationship between creatinine and age only in S. apella. CONCLUSIONS: Our results indicate that A. caraya has a faster aging mechanism than S. apella, and the higher relative kidney volume in S. apella is suggestive of high metabolic demands in this species.


Asunto(s)
Alouatta caraya , Alouatta , Alouatta/fisiología , Animales , Creatinina , Riñón/diagnóstico por imagen , Riñón/fisiología , Primates , Sapajus apella
6.
J Biochem Mol Toxicol ; 36(4): e22993, 2022 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-35187757

RESUMEN

Cardiac channelopathies are a heterogeneous group of inherited cardiac diseases that are associated with mutations in the genes that encode the expression of cardiac ion channels. In view of this, it can be mentioned that the main hereditary arrhythmias in children and adolescents, caused by dysfunction of the ion channels, are Brugada Syndrome (BrS) and Long QT Syndrome (LQTS). However, few studies address the physiological effects of these conditions on children and adolescents. Thus, the aim of this study is to describe the mutation phenotype related to voltage-gated sodium channels in children and adolescents. A search was performed in the literature of PubMed, Scielo, and Google scholar. The search was limited to articles written in the last 5 years, so articles published between 2014 and 2019 were included. Among 2196 studies identified through a systematic literature review, 30 studies related to the theme were identified for a complete review and after applying exclusion criteria, 4 articles were included in the results of this study. As the most frequently observed channelopathy, BrS was also more identified in children and adolescents, characterized by episodes of syncope or sudden cardiac death. LQTS shows clinical manifestations with a mild phenotype and good prognosis, although it is necessary to monitor and correct serum electrolyte disturbances to prevent ventricular arrhythmias and, consequently, sudden death in patients with the pathology. The aim of this study is to find the general phenotypes related to genetic mutations of voltage-gated sodium channels, in a population aged from 7- to 14-year-old.


Asunto(s)
Síndrome de Brugada , Síndrome de QT Prolongado , Adolescente , Síndrome de Brugada/genética , Humanos , Canales Iónicos , Síndrome de QT Prolongado/complicaciones , Síndrome de QT Prolongado/genética , Mutación , Fenotipo , Canales de Sodio/genética
7.
Arch Insect Biochem Physiol ; 110(2): e21887, 2022 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-35315942

RESUMEN

Insects overcome the action of natural protease inhibitors (PIs) due to evolutionary adaptations through endogenous proteolysis and reprogramming proteases. Insect adaptations complicate the formulation of IP-based crop protection products. However, small peptides designed based on the active site of enzymes have shown promising results that could change this scenario. GORE1 and GORE2 are designed tripeptides that reduce the survival of Anticarsia gemmatalis when ingested orally. In this article, the stability and ability of the peptides to bind trypsin-like enzymes of A. gemmatalis were evaluated by molecular dynamics (MD) simulations. The ability of the peptides to inhibit trypsin-like enzymes in vivo was compared with the SKTI protein by feeding A. gemmatalis larvae at different concentrations, followed by an inhibition persistence assay. During the MD simulation of enzyme-ligand complexes, both peptides showed a small variation of root-mean-square deviation and root-mean-square fluctuation, suggesting that these molecules reach equilibrium when forming a complex with the trypsin-like enzyme. Furthermore, both peptides form hydrogen bonds with substrate recognition sites of A. gemmatalis trypsin-like enzyme, with GORE2 having more interactions than GORE1. Larvae of A. gemmatalis exposed to the peptides and SKTI showed a similar reduction in proteolytic activity, but the persistence of inhibition of trypsin-like enzyme was longer in peptide-fed insects. Despite their size, the peptides exhibit important active and substrate binding site interactions, stability during complex formation, and steadiness effects in vivo. The results provide fundamental information for the development of mimetic molecules and help in decision-making for the selection of delivery methods for larger-scale experiments regarding similar molecules.


Asunto(s)
Fabaceae , Mariposas Nocturnas , Animales , Larva , Péptidos , Glycine max/metabolismo , Tripsina/metabolismo
8.
Pestic Biochem Physiol ; 187: 105188, 2022 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-36127063

RESUMEN

Pest management is challenged with resistant herbivores and problems regarding human health and environmental issues. Indeed, the greatest challenge to modern agriculture is to protect crops from pests and still maintain environmental quality. This study aimed to analyze by in silico, in vitro, and in vivo approaches to the feasibility of using the inhibitory protein extracted from mammals - Bovine Pancreatic Trypsin Inhibitor (BPTI) as a potential inhibitor of digestive trypsins from the pest Anticarsia gemmatalis and comparing the results with the host-plant inhibitor - Soybean Kunitz Trypsin Inhibitor (SKTI). BPTI and SKTI interacts with A. gemmatalis trypsin-like enzyme competitively, through hydrogen and hydrophobic bonds. A. gemmatalis larvae exposed to BPTI did not show two common adaptative mechanisms i.e., proteolytic degradation and overproduction of proteases, presenting highly reduced trypsin-like activity. On the other hand, SKTI-fed larvae did not show reduced trypsin-like activity, presenting overproduction of proteases and SKTI digestion. In addition, the larval survival was reduced by BPTI similarly to SKTI, and additionally caused a decrease in pupal weight. The non-plant protease inhibitor BPTI presents intriguing element to compose biopesticide formulations to help decrease the use of conventional refractory pesticides into integrated pest management programs.


Asunto(s)
Agentes de Control Biológico , Glycine max , Mariposas Nocturnas , Plaguicidas , Animales , Aprotinina/farmacología , Agentes de Control Biológico/farmacología , Bovinos , Hidrógeno/farmacología , Larva , Péptido Hidrolasas/metabolismo , Plaguicidas/farmacología , Inhibidores de Proteasas/farmacología , Tripsina , Inhibidores de Tripsina/farmacología
9.
Ann Surg Oncol ; 28(13): 8556-8564, 2021 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-34324109

RESUMEN

INTRODUCTION: Esophageal adenocarcinoma (EAC) has increased in incidence in Western countries, and its poor prognosis necessitates the development of novel therapeutics. We previously reported the potential of conditionally replicative adenoviruses (CRAd) as a novel therapeutic treatment for this disease. To further augment the therapeutic effectiveness of our cyclooxygenase-2 (Cox2) controlled CRAd in EAC, we inserted an interferon alpha (IFN) transgene into the viral genome that is expressed upon viral replication. In this manuscript, we analyze the cytotoxic and oncolytic effects of an IFN-expressing oncolytic adenovirus in EAC and the role of the Cox2 promoter in providing for selective replication in human tissues. METHODS: An infectivity-enhanced IFN-expressing CRAd (5/3 Cox2 CRAd ΔE3 ADP IFN) and other control viruses were first tested in vitro with cell lines. For the in vivo study, EAC xenografts in nude mice were treated with a single intratumoral dose of virus. An ex vivo analysis with live tissue slices was conducted using surgically resected EAC patient specimens. RESULTS: Expression of IFN significantly enhanced the cytotoxic and oncolytic effect of a Cox2-promoter controlled CRAd. This virus showed significant tumor growth suppression in a xenograft model. Furthermore, in human EAC samples, the promoter-controlled virus demonstrated selective replication in cancerous tissues, leaving normal esophageal tissue unaffected. CONCLUSION: An IFN-expressing CRAd driven by the Cox2 promoter has strong oncolytic effects as well as cancer-specific replication. Our novel vector possesses critical characteristics that make it a potential candidate for clinical translation to treat EAC.


Asunto(s)
Adenocarcinoma , Viroterapia Oncolítica , Adenocarcinoma/terapia , Adenoviridae/genética , Animales , Línea Celular Tumoral , Humanos , Interferón-alfa , Ratones , Ratones Desnudos
10.
BMC Gastroenterol ; 21(1): 484, 2021 Dec 20.
Artículo en Inglés | MEDLINE | ID: mdl-34930127

RESUMEN

BACKGROUND: Boerhaave syndrome is an uncommon condition that represents about 15% of all esophageal perforation. A subset of these patients has eosinophilic esophagitis, a chronic inflammatory disease of the esophagus, that carries a risk of perforation of about 2%. Esophageal perforations can rarely result in the development of an esophago-pleural fistula. Treatment of esophago-pleural fistula represent a challenge due to lack of high quality evidence and scarce reported experience. Endoluminal vacuum-assisted therapy could have a role in the management by using the same principle applied in external wounds which provide wound drainage and tissue granulation. CASE PRESENTATION: We report a unique case of a 24-year-old man with eosinophilic esophagitis complicated with an esophageal rupture who developed an esophago-pleural fistula and was successfully managed with a non-surgical approach using endoluminal vacuum-assisted therapy. To our knowledge this could be the first experience reported in a patient with eosinophilic esophagitis. CONCLUSION: Endoluminal vacuum-assisted therapy might be an effective and novel strategy in patients with eosinophilic esophagitis and esophago-pleural fistula as a consequence of Boerhaave syndrome. Appropriately designed studies are required.


Asunto(s)
Esofagitis Eosinofílica , Perforación del Esófago , Fístula , Terapia de Presión Negativa para Heridas , Adulto , Perforación del Esófago/etiología , Perforación del Esófago/terapia , Humanos , Masculino , Enfermedades del Mediastino , Adulto Joven
11.
Respirology ; 26(1): 87-91, 2021 01.
Artículo en Inglés | MEDLINE | ID: mdl-32537884

RESUMEN

BACKGROUND AND OBJECTIVE: Rigid tracheobronchoscopy (RTB) has seen an increasing interest over the last decades with the development of the field of IPM but no benchmark exists for complication rates in RTB. We aimed to establish benchmarks for complication rates in RTB. METHODS: A multicentric retrospective analysis of RTB performed between 2009 and 2015 in eight participating centres was performed. RESULTS: A total of 1546 RTB were performed over the study period. One hundred and thirty-one non-lethal complications occurred in 103 procedures (6.7%, 95% CI: 5.5-8.0%). The periprocedural mortality rate was 1.2% (95% CI: 0.6-1.8%). The 30-day mortality rate was 5.6% (95% CI: 4.5-6.8%). Complication rate increases further when procedures were performed in an emergency setting. Procedures in patients with MAO are associated with a higher 30-day mortality (8.1% vs 2.7%, P < 0.01) and a different complication profile when compared to procedures performed for BAS. CONCLUSION: RTB is associated with a 6.7% non-lethal complication rate, a 1.2% periprocedural mortality rate and a 5.6% 30-day mortality in a large multicentre cohort of patients with benign and malignant airway disease.


Asunto(s)
Broncoscopía/efectos adversos , Adulto , Anciano , Anciano de 80 o más Años , Obstrucción de las Vías Aéreas/etiología , Estudios de Cohortes , Constricción Patológica , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Stents/efectos adversos
12.
Drug Dev Ind Pharm ; 47(12): 1881-1894, 2021 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-35377263

RESUMEN

Vitamin K antagonists (VKA) and direct oral anticoagulants (DOACs) have been clinically used in the treatment of coagulation disorders. There are four DOACs approved since 2010 (dabigatran etexilate, rivaroxaban, apixaban, and edoxaban), and they were designed to overcome the practical limitations of VKA. This review summarized biopharmaceutics considerations about DOACs, which are critically discussed, applying risk analyses to subside the further classification of these drugs according to the Biopharmaceutics Classification System (BCS). These discussions included data compiled about physicochemical properties, equilibrium solubility, permeability, and drug dissolution of DOACs. From the biopharmaceutics characteristics is possible to identify critical variables related to the absorption process, which can help in the design of new formulations. The data were compared with the criteria recommended by regulatory agencies for the biopharmaceutics classification according to the BCS. From that, these data may be used to discuss the approval of generic medicines by the BCS-based biowaiver, and the clinical risks arising from novel formulations with DOACs. However, although there are indications of biopharmaceutics classifications for DOACs, conclusive information to classify these compounds according to the BCS is lacking, requiring more experimental studies to achieve this aim. Conclusive information is essential for a safe decision about the biowaiver, as well as to guide the development of new formulations containing the DOACs.


Asunto(s)
Anticoagulantes , Biofarmacia , Administración Oral , Dabigatrán , Rivaroxabán
13.
Int J Mol Sci ; 22(19)2021 Sep 30.
Artículo en Inglés | MEDLINE | ID: mdl-34638973

RESUMEN

The search for promising biomolecules such as chitooligosaccharides (COS) has increased due to the need for healing products that act efficiently, avoiding complications resulting from exacerbated inflammation. Therefore, this study aimed to produce COS in two stages of hydrolysis using chitosanases derived from Bacillus toyonensis. Additionally, this study aimed to structurally characterize the COS via mass spectrometry, to analyze their biocompatibility in acute toxicity models in vivo, to evaluate their healing action in a cell migration model in vitro, to analyze the anti-inflammatory activity in in vivo models of xylol-induced ear edema and zymosan-induced air pouch, and to assess the wound repair action in vivo. The structural characterization process pointed out the presence of hexamers. The in vitro and in vivo biocompatibility of COS was reaffirmed. The COS stimulated the fibroblast migration. In the in vivo inflammatory assays, COS showed an antiedematogenic response and significant reductions in leukocyte migration, cytokine release, and protein exudate. The COS healing effect in vivo was confirmed by the significant wound reduction after seven days of the experiment. These results indicated that the presence of hexamers influences the COS biological properties, which have potential uses in the pharmaceutical field due to their healing and anti-inflammatory action.


Asunto(s)
Antiinflamatorios/administración & dosificación , Materiales Biocompatibles/administración & dosificación , Quitosano/administración & dosificación , Enfermedades del Oído/tratamiento farmacológico , Edema/tratamiento farmacológico , Oligosacáridos/administración & dosificación , Cicatrización de Heridas/efectos de los fármacos , Células 3T3 , Animales , Antiinflamatorios/química , Bacillus/enzimología , Materiales Biocompatibles/química , Movimiento Celular/efectos de los fármacos , Supervivencia Celular/efectos de los fármacos , Quitosano/química , Citocinas/metabolismo , Modelos Animales de Enfermedad , Enfermedades del Oído/inducido químicamente , Edema/inducido químicamente , Femenino , Fibroblastos/efectos de los fármacos , Fibroblastos/metabolismo , Glicósido Hidrolasas/química , Hidrólisis , Inflamación/tratamiento farmacológico , Inflamación/metabolismo , Leucocitos/efectos de los fármacos , Leucocitos/metabolismo , Masculino , Ratones , Ratones Endogámicos BALB C , Oligosacáridos/química
14.
J Med Syst ; 46(1): 8, 2021 Dec 11.
Artículo en Inglés | MEDLINE | ID: mdl-34893931

RESUMEN

Our aim was to assess the tomographic presence of diabetic macular edema in type 2 diabetes patients screened for diabetic retinopathy with color fundus photographs and an artificial intelligence algorithm. Color fundus photographs obtained with a low-cost smartphone-based handheld retinal camera were analyzed by the algorithm; patients with suspected macular lesions underwent ocular coherence tomography. A total of 366 patients were screened; diabetic macular edema was suspected in 34 and confirmed in 29 individuals, with average age 60.5 ± 10.9 years and glycated hemoglobin 9.8 ± 2.4%; use of insulin, statins, and aspirin were reported in 44.8%, 37.9%, and 34.5% of individuals, respectively; systemic blood hypertension, dyslipidemia, abdominal obesity, chronic kidney disease, and risk for diabetic foot ulcers were present in 100%, 58.6%, 62.1%, 48.3%, and 27.5% of individuals, respectively. Proliferative diabetic retinopathy was present in 31% of patients with macular edema; severity level was associated with albuminuria (p = 0.028). Eyes with macular edema had average central macular thickness 329.89 ± 80.98 m[Formula: see text]; intraretinal cysts, sub retinal fluid, hyper-reflective foci, epiretinal membrane, and vitreomacular traction were found in 87.2%, 6.4%, 85.1%, 10.6%, and 6.4% of eyes, respectively. Diabetic retinopathy screening overwhelms health systems and is typically based on color fundus photographs, with high false-positive rates for the detection of diabetic macular edema. The present, semi-automated strategy comprising artificial intelligence algorithms integrated with smartphone-based retinal cameras could improve screening in low-resource settings with limited availability of ocular coherence tomography, allowing increased access rates and ultimately contributing to tackle preventable blindness.


Asunto(s)
Diabetes Mellitus Tipo 2 , Retinopatía Diabética , Edema Macular , Anciano , Inteligencia Artificial , Diabetes Mellitus Tipo 2/complicaciones , Retinopatía Diabética/diagnóstico por imagen , Humanos , Edema Macular/diagnóstico , Persona de Mediana Edad , Teléfono Inteligente
15.
J Anat ; 237(1): 105-118, 2020 07.
Artículo en Inglés | MEDLINE | ID: mdl-32255516

RESUMEN

Studying the timing of the main events of embryonic and fetal development may clarify the strategies adopted by species to maximize neonatal survival and the consequences of these events for their life history. This study describes bone development during the fetal phase of the lowland paca (Cuniculus paca), comparing it with other precocial or altricial species, and its relationship with the species' adaptive strategies. A total of 102 embryos/fetuses obtained over the course of 17 years through collaboration with local subsistence hunters in the Amazon were analyzed. Measurements of mineralization of the axial and appendicular skeletons were performed by ultrasonography using a 10-18-MHz linear transducer. The chronological order of occurrence of mineralization in relation to the total dorsal length (TDL) was: skull (TDL = 4.1 cm); vertebral bodies (TDL = 4.6 cm); scapula, humerus, radius, ulna, ilium, ischium, femur, tibia, and fibula (TDL = 6.7 cm); ribs (TDL = 7.8 cm); clavicle (TDL = 8.5 cm); metacarpi/metatarsi (TDL = 11 cm); phalanges (TDL = 15 cm); tarsus (TDL = 18 cm); patella (TDL = 23 cm); and carpus (TDL = 27.2 cm). Secondary ossification centers first appeared in the femoral distal epiphysis (TDL = 16.6 cm) and tibial proximal epiphysis (TDL = 18.4 cm). Advanced fetuses (TDL > 30 cm, 97% gestational period) presented mineralization in all primary and most secondary centers. Compared to other species, paca neonates have a well-developed skeletal system at birth, which is important for their independent postnatal locomotion. Our results may contribute to the monitoring of bone development in other wild species, helping us to understand their life history, and serving as parameters for comparisons between precocial and altricial mammals.


Asunto(s)
Desarrollo Óseo/fisiología , Huesos/diagnóstico por imagen , Huesos/embriología , Desarrollo Fetal/fisiología , Animales , Cuniculidae , Ultrasonografía
16.
Glob Chang Biol ; 25(2): 536-548, 2019 02.
Artículo en Inglés | MEDLINE | ID: mdl-30565806

RESUMEN

Policies to mitigate climate change and biodiversity loss often assume that protecting carbon-rich forests provides co-benefits in terms of biodiversity, due to the spatial congruence of carbon stocks and biodiversity at biogeographic scales. However, it remains unclear whether this holds at the scales relevant for management, and particularly large knowledge gaps exist for temperate forests and for taxa other than trees. We built a comprehensive dataset of Central European temperate forest structure and multi-taxonomic diversity (beetles, birds, bryophytes, fungi, lichens, and plants) across 352 plots. We used Boosted Regression Trees (BRTs) to assess the relationship between above-ground live carbon stocks and (a) taxon-specific richness, (b) a unified multidiversity index. We used Threshold Indicator Taxa ANalysis to explore individual species' responses to changing above-ground carbon stocks and to detect change-points in species composition along the carbon-stock gradient. Our results reveal an overall weak and highly variable relationship between richness and carbon stock at the stand scale, both for individual taxonomic groups and for multidiversity. Similarly, the proportion of win-win and trade-off species (i.e., species favored or disadvantaged by increasing carbon stock, respectively) varied substantially across taxa. Win-win species gradually replaced trade-off species with increasing carbon, without clear thresholds along the above-ground carbon gradient, suggesting that community-level surrogates (e.g., richness) might fail to detect critical changes in biodiversity. Collectively, our analyses highlight that leveraging co-benefits between carbon and biodiversity in temperate forest may require stand-scale management that prioritizes either biodiversity or carbon in order to maximize co-benefits at broader scales. Importantly, this contrasts with tropical forests, where climate and biodiversity objectives can be integrated at the stand scale, thus highlighting the need for context-specificity when managing for multiple objectives. Accounting for critical change-points of target taxa can help to deal with this specificity, by defining a safe operating space to manipulate carbon while avoiding biodiversity losses.


Asunto(s)
Biodiversidad , Carbono/análisis , Cambio Climático , Bosques , Francia , Hungría , Italia
17.
J Vasc Interv Radiol ; 30(3): 453-459, 2019 03.
Artículo en Inglés | MEDLINE | ID: mdl-30819493

RESUMEN

PURPOSE: To compare the safety and efficacy of hook wire versus microcoil localization of pulmonary nodules prior to video-assisted thoracoscopic resection (VATS). MATERIALS AND METHODS: A retrospective comparative review was conducted of 46 patients (26 hook wire and 20 microcoil) who underwent computed tomography fluoroscopic-guided nodule localizations prior to VATS in a single center between January 2012 and August 2016. Nodule characteristics, procedural details, clinical outcomes, and pathologic findings were collected. Baseline characteristics and lung nodule distribution were not significantly different between the 2 groups. Nodule sizes ranged from 2 mm to 28 mm and were similar between groups. Twenty-nine patients (63%) were male, with mean (standard deviation) age of 61 (11) years. Adverse events were classified using standard criteria. Patients were followed for up to 90 days, and the clinical outcomes were compared. RESULTS: Successful resection of nodules was achieved in all patients. Twelve cases of displacement of the hook wire were observed compared to only 1 in the coil group (P < .01). The total complication rate was lower in the coil group (25% vs 54%, P = .04). Two patients required transition to thoracotomy in the hook wire group, compared to none in the coil group. Median blood loss was similar in both groups (median loss, 20-22 mL). One patient had positive margins in the hook wire group. There was a nonsignificant trend toward longer hospital stay and higher major complication rates after hook wire localization (P = .4). CONCLUSIONS: Pulmonary nodule localization with coils prior to VATS resection demonstrated fewer displacements and fewer perioperative complications compared to hook wires.


Asunto(s)
Neoplasias Pulmonares/diagnóstico por imagen , Nódulos Pulmonares Múltiples/diagnóstico por imagen , Cuidados Preoperatorios/métodos , Nódulo Pulmonar Solitario/diagnóstico por imagen , Cirugía Torácica Asistida por Video , Tomografía Computarizada por Rayos X/métodos , Anciano , Femenino , Fluoroscopía , Humanos , Neoplasias Pulmonares/patología , Neoplasias Pulmonares/cirugía , Masculino , Persona de Mediana Edad , Nódulos Pulmonares Múltiples/patología , Nódulos Pulmonares Múltiples/cirugía , Valor Predictivo de las Pruebas , Cuidados Preoperatorios/efectos adversos , Cuidados Preoperatorios/instrumentación , Estudios Retrospectivos , Factores de Riesgo , Nódulo Pulmonar Solitario/patología , Nódulo Pulmonar Solitario/cirugía , Tomografía Computarizada por Rayos X/efectos adversos , Tomografía Computarizada por Rayos X/instrumentación , Resultado del Tratamiento , Carga Tumoral
18.
Actas Esp Psiquiatr ; 47(1): 7-15, 2019 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-30724326

RESUMEN

INTRODUCTION: Neurocognitive impairment is considered an essential symptom of schizophrenia, particularly in its early stages. Nonetheless, the neuropsychological features of borderline personality disorder (BPD) could cast doubt on the specificity of neurocognitive dysfunctions. The aim of this study is to determine whether neurocognitive deficits are specific to schizophrenia-spectrum conditions as compared to a similarly severe psychiatric illness like BPD. METHOD: A battery of neuropsychological tests was used to assess the abilities for attention, verbal memory and executive functions in a group of 34 borderline personality disorder (BPD) patients, 24 patients with first episode of a schizophrenia-spectrum disorder (FEP) and a group of 19 controls. RESULTS: ANOVA for multiple measures with subsequent post-hoc tests demonstrated significant effect sizes between controls and patients for all cognitive domains. However, the effect sizes of comparisons between both groups of patients were not significant. CONCLUSIONS: Results show significant neuropsychological impairment in both disorders when compared with normal controls, but no specific pattern of neurocognitive deficits for schizophrenia-spectrum disorders was found.


Asunto(s)
Trastorno de Personalidad Limítrofe/diagnóstico , Esquizofrenia/diagnóstico , Adolescente , Adulto , Atención , Trastorno de Personalidad Limítrofe/fisiopatología , Trastorno de Personalidad Limítrofe/psicología , Estudios de Casos y Controles , Diagnóstico Diferencial , Función Ejecutiva , Femenino , Humanos , Masculino , Memoria , Pruebas Neuropsicológicas , Esquizofrenia/fisiopatología , Psicología del Esquizofrénico , Adulto Joven
19.
Actas Esp Psiquiatr ; 47(4): 137-48, 2019 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-31461153

RESUMEN

AIMS: The "Discrimination and Stigma Scale" (DISC) was the first instrument specifically designed to evaluate reported experiences of discrimination by people with mental disorders. This study aims to validate DISC-12 version in Spanish population with Schizophrenia and, as specific objectives, to do the external validation with the Self-Stigma Questionnaire (SSQ) scale and Link PDD scale and to validate their internal consistency, temporal and inter-rater reliability. METHODS: 86 individuals with schizophrenia were interviewed at two time points (between one to two weeks) by two raters. Additionally to assess their sociodemographic and clinical characteristics, following scales were administered: DISC 12, SSQ, PDD, Social Functioning Scale (SFS) and Global Assessment of Function (GAF). RESULTS: Internal consistency as a whole results a Cronbach a between 0.741 and 0.850. Subscales "Unfair treatmen" and "Positive treatment" have a Cronbach a higher than 0.79, but the both subscales "Stopping Self" and "Overcoming stigma" do not have in themselves an adequate consistency. Test-retest reliability shows that four subscales have values higher than 0.67. Inter-rater reliability assessment result that 21 items score values above 0.8, 10 between 0.6-0.8 and one lower than 0.6. DISC-12 was significantly related with the second factor of the PDD (self-stigma) and SSQ. CONCLUSIONS: The Spanish version of the DISC 12 scale is valid, has good internal consistency, is reliable both in terms of test-retest and inter-rater reliability and has good convergent validity with the SSQ and PDD, and the "Unfair treatment" and "Positive Treatment" subscales were the most robust of the four subscales.


Asunto(s)
Psicología del Esquizofrénico , Discriminación Social , Estigma Social , Encuestas y Cuestionarios , Adulto , Femenino , Humanos , Lenguaje , Masculino , Persona de Mediana Edad , Psicometría , Reproducibilidad de los Resultados , España
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