Short and long-term temperature variations drive recruitment variability in marine and estuarine juvenile fishes

Understanding the long-term effects of climatic factors on key species' recruitment is crucial to species management and conservation. Here, we analysed the recruitment variability of key species (Dicentrarchus labrax, Platichthys flesus, Solea solea, Pomatoschistus microps and Pomatoschistus minutus) in an estuary between 2003 and 2019, and related it with the prevailing local and large-scale environmental factors. Using a dynamic factor analysis (DFA), juvenile abundance data were grouped into three common trends linked to different habitat uses and life cycle characteristics, with significant effect of temperature-related variables on fish recruitment: Sea surface temperature and the Atlantic Multidecadal Oscillation. In 2010, a regime shift in the North Atlantic coincided with a shift in the common trends, particularly a decline in P. flesus and S. solea trend. This work highlights the thermophilic character of fish recruitment and the necessity to investigate key biological processes in the context of species-specific responses to climate change.

Pitfalls of cubital electrical nerve stimulation for neuromuscular transmission monitoring: A case report of familial amyloid polyneuropathy

Transthyretin familial amyloid polyneuropathy (FAP) is a rare autosomal dominant disease that provokes systemic deposition of amyloid. It affects the nervous system and it is characterized by progressive sensory, motor, and autonomic neuropathy. Patients with FAP often require surgery and anesthetic care for hepatic transplantation and cardioverter-defibrillator/pacemaker implantation. Peripheric neuropathy is a common finding, but there are no reported cases of its interference with anesthetic neuromuscular transmission monitoring. We report a case of a FAP patient where lack of awareness and distracting factors led to misinterpretation of neuromuscular monitoring and unnecessary sedation and ventilation in the post anesthetic care unit. FAP may interfere with the usual cubital nerve neuromuscular monitoring. Anesthesiologists should be aware of potential neuromuscular compromise to find the best monitoring location for each patient. Sugammadex was safe and reliable in the antagonism of rocuronium neuromuscular blockade in this case, despite the lack of adequate quantitative monitoring.

Pitfalls of cubital electrical nerve stimulation for neuromuscular transmission monitoring: a case report of familial amyloid polyneuropathy

Transthyretin familial amyloid polyneuropathy (FAP) is a rare autosomal dominant disease that provokes systemic deposition of amyloid. It affects the nervous system and it is characterized by progressive sensory, motor, and autonomic neuropathy. Patients with FAP often require surgery and anesthetic care for hepatic transplantation and cardioverter-defibrillator/pacemaker implantation. Peripheric neuropathy is a common finding, but there are no reported cases of its interference with anesthetic neuromuscular transmission monitoring. We report a case of a FAP patient where lack of awareness and distracting factors led to misinterpretation of neuromuscular monitoring and unnecessary sedation and ventilation in the post anesthetic care unit. FAP may interfere with the usual cubital nerve neuromuscular monitoring. Anesthesiologists should be aware of potential neuromuscular compromise to find the best monitoring location for each patient. Sugammadex was safe and reliable in the antagonism of rocuronium neuromuscular blockade in this case, despite the lack of adequate quantitative monitoring.

Gallstone Ileus: An Improbable Cause of Mechanical Small Bowel Obstruction

Gallstone ileus (GI) is a rare complication of cholelithiasis and a rare cause of small bowel obstruction. It usually affects elderly women and the symptoms are nonspecific, both contributing to a delay in diagnosis and a high mortality rate. It is necessary to have a high suspicion index for diagnosis and abdominal CT is the gold standard imaging for the diagnosis. We present a case report of an 87-year-old man who presented to the ED with abdominal pain and vomiting for the last 20 days. A GI was diagnosed and he underwent enterolithotomy to remove the stone. Unfortunately, the patient died on the 13th postoperative day with multiorgan failure. The treatment and the time at which it is performed must be adapted to each patient.

Gastric Volvulus: A Complication of Hiatal Hernia

Gastric volvulus is a rare but potentially life-threatening condition, with difficult diagnosis. We present a case report of a demented woman aged 65 years that attended the emergency department with epigastric pain and vomiting for the past 10 days. The chest plain revealed a retrocardiac air-filled mass and the abdomino-pelvic computed tomography confirmed the diagnosis of gastric volvulus. The patient was admitted. A nasogastric tube was introduced, antibiotics and parenteric nutrition were started and the patient didn't eat anything. The patient was operated at fifth day of admission by laparoscopy. There weren't signs of gastric necrosis, so the stomach was mobilized for its natural position on abdominal cavity, the hiatal defect was closed and a Nissen fundoplicature was performed. The post operative period was uneventful and the patient was discharged on the third post-operative day, without any complication. This case illustrates a sub acute presentation form of gastric volvulus and a differed minimally invasive approach attending at the patient's clinical stability.

Albumin-binding domain from Streptococcus zooepidemicus protein Zag as a novel strategy to improve the half-life of therapeutic proteins

Recombinant antibody fragments belong to the promising class of biopharmaceuticals with high potential for future therapeutic applications. However, due to their small size they are rapidly cleared from circulation. Binding to serum proteins can be an effective approach to improve pharmacokinetic properties of short half-life molecules. Herein, we have investigated the Zag albumin-binding domain (ABD) derived from Streptococcus zooepidemicus as a novel strategy to improve the pharmacokinetic properties of therapeutic molecules. To validate our approach, the Zag ABD was fused with an anti-TNFα single-domain antibody (sdAb). Our results demonstrated that the sdAb-Zag fusion protein was highly expressed and specifically recognizes human, rat and mouse serum albumins with affinities in the nanomolar range. Moreover, data also demonstrated that the sdAb activity against the therapeutic target (TNFα) was not affected when fused with Zag ABD. Importantly, the Zag ABD increased the sdAb half-life ∼39-fold (47min for sdAb versus 31h for sdAb-Zag). These findings demonstrate that the Zag ABD fusion is a promising approach to increase the half-life of small recombinant antibodies molecules without affecting their therapeutic efficacy. Moreover, the present study strongly suggests that the Zag ABD fusion strategy can be potentially used as a universal method to improve the pharmokinetics properties of many others therapeutics proteins and peptides in order to improve their dosing schedule and clinical effects.

Intergenerational educational trajectories and lower back pain in young women and men

We examined the association between intergenerational educational trajectories and lower back pain (LBP) outcomes in young women and men from the general population. Participants were part of the 21 years old follow-up of the EPITeen cohort study, which was set up during the 2003/2004 school year and recruited subjects born in 1990 attending schools in Porto, Portugal (n=1657, 51.6% women). Parental and individual educational levels were used to define intergenerational educational trajectories as stable-high, upward, stable-low, and downward. Data on the presence, severity and chronicity of LBP were also assessed. Gender-specific adjusted odds ratios (OR) with 95% confidence intervals (95% CI) were computed to estimate the associations between educational trajectories and LBP outcomes. When compared to women with stable-high educational trajectories, those with stable-low educational trajectories were significantly more likely to report moderate/severe (adjusted OR=1.76, 95% CI: 1.21-2.57) and chronic (adjusted OR=1.82, 95% CI: 1.02-3.22) LBP. The magnitude of these associations was even stronger among females with downward educational trajectories (moderate/severe: adjusted OR=2.58, 95% CI: 1.49-4.46; chronic: adjusted OR=2.42, 95% CI: 1.12-5.27). Educational trajectories were not significantly associated to LBP outcomes among men. In conclusion, intergenerational educational trajectories may contribute to LBP as reported in early adulthood, particularly in women.

Psychosocial Work Environment and Musculoskeletal Symptoms among 21-Year-Old Workers: A Population-Based Investigation (2011-2013)

Background

The current labour market is becoming more flexible and informal, with job insecurity selectively affecting young workers. However, the role of these increasing adverse psychosocial working conditions on health outcomes remains little known among newly employed workers.

Objective

To estimate the associations between psychosocial work environment and musculoskeletal outcomes (widespread pain syndrome features and regional pain) in a population-based sample of young workers.

Methods

Cross-sectional data from workers aged 21 years were collected during the third wave of the EPITeen cohort study (2011-2013; n=650). The Job Content Questionnaire was used to characterize the psychosocial work environment according to the demand-control-support model. Data on pain and non-pain dimensions of the widespread pain syndrome (Fibromyalgia Survey Questionnaire) as well as on regional musculoskeletal pain (Nordic Musculoskeletal Questionnaire) were also collected. Crude and adjusted odds ratios (OR) with 95% confidence intervals (95% CI) were computed using logistic regression and all estimates were adjusted for sex, education and occupational biomechanical demands.

Results

Job insecurity was significantly associated to the non-pain dimension of the widespread pain syndrome (adjusted OR [95% CI]=1.51 [1.08, 2.12]). Young workers with strain jobs were significantly more likely to report high levels of non-pain symptoms when compared with those with no-strain jobs and this effect was even stronger when social support was added to the main exposure: workers with strain jobs and low social support had twice the odds of reporting high levels of non-pain features than those with high strain but high social support jobs (adjusted OR=1.86, 95% CI: 1.04, 3.31). These significant associations were not observed when widespread pain or multisite regional pain were the outcomes.

Conclusion

In the beginning of professional life, high strain jobs were associated to non-pain complaints, especially when the work environment provided also low social support.

Patterns of biomechanical demands are associated with musculoskeletal pain in the beginning of professional life: a population-based study

OBJECTIVES

This study aimed to describe patterns of occupational biomechanical demands in the beginning of professional life and to quantify their association with the presence and intensity of regional musculoskeletal pain.

METHODS

Cross-sectional data from 21-year-old participants were collected during the third wave of the EPITeen cohort study (N=1733, 37.5% were workers). Ten different work-related biomechanical tasks were characterized. Latent class analysis was conducted to identify empirical patterns of occupational biomechanical demands. The presence and intensity of regional musculoskeletal pain in the previous year were also evaluated.

RESULTS

Four patterns of occupational biomechanical demands were found: "low demands", "sitting demands", "repetitive and asymmetric demands", and "high and vibrational demands". When compared to workers with low demands, those with repetitive and asymmetric demands or high and vibrational demands presented 80% higher adjusted odds ratio (OR adj) of reporting neck/shoulder pain. High and vibrational demands occupations were significantly associated with upper-/lower-back pain in comparison to low demands [OR adj1.80, 95% confidence interval (95% CI%) 1.09-2.96]. In addition, workers with sitting demands were more likely to report any or severe upper-/lower-back pain [OR adj1.56 (95% CI 0.99-2.45) and 1.66 (95% CI 1.03-2.66), respectively] when compared to those with low demands.

CONCLUSIONS

Patterns of high work-related physical demands were associated with the presence of neck/shoulder pain and severity of upper-/lower-back pain. This emphasizes that even short-term biomechanical exposures at the workplace may be involved in the etiology of musculoskeletal complaints.

Osteoarthritis medical labelling and health-related quality of life in the general population

Background

Osteoarthritis is the most common chronic joint disease. In the absence of an effective medical treatment and due to the chronic nature of this condition, an osteoarthritis medical diagnosis may finally result in decreased health-related quality of life. Therefore, the aim of this study was to measure the impact of the osteoarthritis medical labelling on physical and mental health-related quality of life.

Methods

Subjects (n = 1132, 58.7% women) were approached as participants of an urban population-based cohort (EPIPorto). Self-reported information on previous diagnosis of knee, hip or hand osteoarthritis was obtained and rheumatologists established knee, hip or hand osteoarthritis clinical diagnosis in symptomatic individuals. Physical and mental dimensions of health-related quality of life were evaluated using the self-administered Medical Outcomes Study: 36-Item Short Form Survey. Crude and adjusted linear regression coefficients (beta) and the corresponding 95% confidence intervals (95% CI) were computed to estimate the associations between being labelled as an osteoarthritis case and health-related quality of life.

Results

Regardless of disease medical labelling, individuals with osteoarthritis scored significantly lower physical health-related quality of life when compared to those without joint disease (knee_unexposed: beta = −5.3, 95% CI: −7.6, −3.1; knee_exposed: beta = −6.0, 95% CI: −8.4, −3.7; hip_unexposed: beta = −6.0, 95% CI: −9.8, −2.3; hip_exposed: beta = −11.0, 95% CI: −15.6, −6.4; hand_unexposed: beta = −4.3, 95% CI: −6.5, −2.0; hand_exposed: beta = −4.3, 95% CI: −6.6, −2.1). The same was not observed regarding mental health-related quality of life. Among subjects with clinically confirmed osteoarthritis, the medical labelling of this joint disease was not significantly associated to health-related quality of life.

Conclusions

The labelling of knee, hip and hand osteoarthritis diagnosis may not add specific benefit to osteoarthritis patients in terms of its capability to improve health-related quality of life.

Three-dimensional analysis of the cranio-cervico-mandibular complex during piano performance

Piano players, as well as other musicians, spend a long time training to achieve the best results, sometimes adopting unnatural body positions that may cause musculoskeletal pain. This paper presents the preliminary results of a study targeting the analysis of the head and cervical postures of 17 piano players during musical performance. It was found, as a common feature, that the players tilt the head to the right and forward towards the score and keyboard. Players who know the score by heart tend to move their heads more compared to the ones who have to keep their eyes on the score.

Model-based patterns in prostate cancer mortality worldwide

Background:

Prostate cancer mortality has been decreasing in several high income countries and previous studies analysed the trends mostly according to geographical criteria. We aimed to identify patterns in the time trends of prostate cancer mortality across countries using a model-based approach.

Methods:

Model-based clustering was used to identify patterns of variation in prostate cancer mortality (1980–2010) across 37 European, five non-European high-income countries and four leading emerging economies. We characterised the patterns observed regarding the geographical distribution and gross national income of the countries, as well as the trends observed in mortality/incidence ratios.

Results:

We identified three clusters of countries with similar variation in prostate cancer mortality: pattern 1 (‘no mortality decline'), characterised by a continued increase throughout the whole period; patterns 2 (‘later mortality decline') and 3 (‘earlier mortality decline') depict mortality declines, starting in the late and early 1990s, respectively. These clusters are also homogeneous regarding the variation in the prostate cancer mortality/incidence ratios, while are heterogeneous with reference to the geographical region of the countries and distribution of the gross national income.

Conclusion:

We provide a general model for the description and interpretation of the trends in prostate cancer mortality worldwide, based on three main patterns.

Choice architecture as a means to change eating behaviour in self-service settings: a systematic review

The primary objective of this review was to investigate the current evidence base for the use of choice architecture as a means to change eating behaviour in self-service eating settings, hence potentially reduce calorie intake. Twelve databases were searched systematically for experimental studies with predefined choice architecture interventions in the period of June 2011-March 2012. The 12 included studies were grouped according to type of interventions and underwent a narrative synthesis. The evidence indicates that (i) health labelling at point of purchase is associated with healthier food choice, while (ii) manipulating the plate and cutlery size has an inconclusive effect on consumption volume. Finally, (iii) assortment manipulation and (iv) payment option manipulation was associated with healthier food choices. The majority of studies were of very weak quality and future research should emphasize a real-life setting and compare their results with the effect of other more well-established interventions on food behaviour in self-service eating settings.

Temporal blastemal cell gene expression analysis in the kidney reveals new Wnt and related signaling pathway genes to be essential for Wilms' tumor onset

Wilms' tumors (WTs) originate from metanephric blastema cells that are unable to complete differentiation, resulting in triphasic tumors composed of epithelial, stromal and blastemal cells, with the latter harboring molecular characteristics similar to those of the earliest kidney development stages. Precise regulation of Wnt and related signaling pathways has been shown to be crucial for correct kidney differentiation. In this study, the gene expression profile of Wnt and related pathways was assessed in laser-microdissected blastemal cells in WTs and differentiated kidneys, in human and in four temporal kidney differentiation stages (i.e. E15.5, E17.5, P1.5 and P7.5) in mice, using an orthologous cDNA microarray platform. A signaling pathway-based gene signature was shared between cells of WT and of earliest kidney differentiation stages, revealing genes involved in the interruption of blastemal cell differentiation in WT. Reverse transcription-quantitative PCR showed high robustness of the microarray data demonstrating 75 and 56% agreement in the initial and independent sample sets, respectively. The protein expression of CRABP2, IGF2, GRK7, TESK1, HDGF, WNT5B, FZD2 and TIMP3 was characterized in WTs and in a panel of human fetal kidneys displaying remarkable aspects of differentiation, which was recapitulated in the tumor. Taken together, this study reveals new genes candidate for triggering WT onset and for therapeutic treatment targets.

O papel dos esquemas emocionais na transgeracionalidade do processo de socialização das emoções negativas

Recentemente, com o reacender do interesse na temática das emoções nas diversas áreas da psicologia, tem-se verificado uma crescente preocupação com o estudo da socialização das emoções. Esta investigação foca-se primordialmente neste processo, procurando verificar a existência de um efeito transgeracional, numa amostra de 172 mães de crianças dos 8 aos 12 anos. Dos resultados obtidos sobressaem evidências que comprovam o efeito transgeracional, com os esquemas emocionais das mães a mediarem a relação entre a expressividade emocional da sua família de origem e as reacções maternas à expressão de emoções negativas da criança.

Validação das emoções na infância: vergonha, ansiedade e sintomatologia depressiva

As emoções são cruciais na compreensão do funcionamento psicológico. Os estudos realizados acerca da forma como as emoções assumem um papel preponderante na vida dos indivíduos, tendo por base as vivências relacionais com as figuras parentais na infância, dizem respeito maioritariamente às memórias daquele período, recordadas e evocadas por indivíduos na vida adulta. Com o objectivo de estudar in loco a forma como as emoções influenciam a vida dos indivíduos desde muito cedo (ainda durante a infância), realizou-se um conjunto de estudos numa amostra constituída por 188 crianças entre os 8 e os 12 anos de idade. Os resultados obtidos demonstram que mães percepcionadas como desaprovadoras das emoções dos filhos desencadeiam nas suas crianças sentimentos de vergonha, sendo que o desenvolvimento desta emoção parece contribuir significativamente para a presença de índices psicopatológicos, mais concretamente para a presença de sintomas depressivos e ansiosos.

O efeito mediador da regulação emocional na relação entre a expressividade emocional da família de origem e as reacções maternas à expressão de emoções positivas das crianças

O papel fundamental da família, especialmente dos pais, enquanto agentes de socialização das emoções tem sido salientado na literatura. De facto, as práticas parentais estabelecem-se, desde cedo, como um meio privilegiado para a identificação e compreensão das emoções, aprendizagem da expressão e de estratégias de regulação emocional. O presente estudo pretende indagar acerca do efeito mediador das estratégias de regulação emocional de 169 mães de crianças dos 8 aos 12 anos de idade, na relação entre o seu ambiente familiar na infância e o modo como reagem à expressão emocional positiva dos seus filhos. Neste sentido, deste estudo sobressaem evidências da existência de um efeito transgeracional do processo de socialização de emoções, verificando-se que as estratégias de regulação emocional das mães funcionam como mediadores da relação entre a expressividade emocional da família de origem e as reacções maternas à expressão de emoções positivas das crianças.

Monoclonal Antibodies Recognize Conformational Epitopes on Wild-type and Recombinant Mutant Amidases from Pseudomonas aeruginosa

Hybridoma technology was used to raise monoclonal antibodies (MAbs) against wild-type amidase from Pseudomonas aeruginosa. Hybridoma clones secreting polyol-responsive MAbs (PR-MAbs) were screened that bind antigen tightly. but release under mild- and non-denaturing elution conditions, which can be used as ligands in immunoaffinity chromatography. Two of these hybridoma clones (C9E4 and B1E4) secreting MAbs against wild-type amidase were selected in order to check if they are PR-MAbs by using ELISA-elution assay. These hybridoma cell lines secreted MAbs of IgG class which were purified in a single step by Protein A-Sepharose CL-4B chromatography, which revealed two protein bands on SDS-PAGE. Specificity studies of MAb C9E4 revealed that it recognized a common epitope on wild-type and mutant T103I amidases as determined by direct ELISA, as well as by Western blotting under native conditions. This MAb exhibited a higher-affinity constant (K) for the mutant T103I amidase than for the wild-type enzyme. However, this MAb did not recognize either wild-type or mutant T103I enzymes under denaturing conditions suggesting that it binds to a conformation-sensitive epitope on amidase molecule. On the other hand, it also does not recognize either native or denatured forms of mutant C91A amidase suggesting that this substitution disrupted the conformational epitope present on amidase molecule. Furthermore, MAb C9E4 inhibited about 80% of wild-type amidase activity, whereas it activated about 80% of mutant amidase (T103I) activity. However, this MAb did not affect mutant C91A amidase activity which is in agreement with other results presented in this work. The data presented in this work suggest that this MAb acts as a powerful probe to detect conformational changes in native and denatured amidases as well as to differentiate wild-type and mutant (T103I and C91A) amidases.