Species Diversity of Anastrepha Fruit Flies (Diptera: Tephritidae) in Environments with Different Levels of Anthropogenic Changes.

Studies on the diversity of Anastrepha species have been conducted mainly in agricultural orchards due to the economic importance of this insect group, consequently, research on fruit flies in undisturbed environments is scarce. Moreover, very few studies have investigated the diversity of fruit flies in urban areas, where fruit flies survive under native or exotic hosts. Thus, to understand the diversity of Anastrepha species in an environment with different anthropization degrees, surveys were carried out in four areas of the "Luiz de Queiroz" campus, in Piracicaba, São Paulo State (Brazil), using Multilure traps with putrescine and ammonium acetate for 12 months.

From molecules to ecosystems: Insights into a network of interactions for a Chagas disease outbreak using Triatoma brasiliensis as natural samplers.

Exploring the dynamics of disease transmission involves an understanding of complex interactions within the eco-epidemiologic framework. In the context of Chagas disease (CD), elements are mainly represented by the interactions among the pathogen, insect vector, host, humans and the environment. We performed quantitative and qualitative analyses on a dataset derived from 98 Triatoma brasiliensis infected by trypanosomatids, which were linked to a CD outbreak in the semi-arid region of northeastern Brazil.

Beached seabirds as plastic biomonitors in Brazil from the Beach Monitoring Project of the Santos Basin (PMP-BS).

Bioindicator species are useful to monitor wildlife exposure to plastic pollution, and responses to plastic leakage and policy interventions. Here we explore the biomonitoring potential of different seabird and shorebirds species across six years of monitoring in Brazil. Using the necropsy stranding database of the Beach Monitoring Project of the Santos Basin (PMP-BS), we evaluated i) the frequency of birds-plastic interactions in Brazil; ii) whether plastic interactions have changed through time and in different coastal regions; and iii) potential bioindicators for monitoring the exposure of seabirds to plastic in the nearshore South Atlantic Ocean.

Experimental Hybrids of the Species Complex Show Higher Susceptibility to the Infection Than Their Parentals.

The species complex is a monophyletic group encompassing two subspecies and six species. Recently, a hybrid zone of members of this complex was recorded in the state of Pernambuco. Questions concerning the capability of the hybrids to become infected with have been raised.

Unraveling the Sexual Dimorphism of First Instar Nymphs of the Giant Stick Insect, Gray, 1835, from the Atlantic Forest, Brazil.

The first instar nymphs, both male and female, of the giant stick insect Gray, 1835 were carefully described and measured, revealing a remarkable sexual dimorphism that is considered rare among insects and is poorly explored in the order Phasmida. The studied F1 nymphs originated in captivity from eggs laid by a coupled female specimen collected in the Atlantic Forest in the vicinity of Petrópolis city, state of Rio de Janeiro, Brazil. The first instar nymphs of were measured and illustrated in high-resolution photographs to show the general aspects and details of sexually dimorphic traits, making clear the phenotypic differences in the sexes.

Identifying inhibitors of Trypanosoma cruzi nucleoside diphosphate kinase 1 as potential repurposed drugs for Chagas' disease.

Trypanosoma cruzi is the causative agent of Chagas' disease, an endemic and neglected disease. The treatment is limited to only two drugs, benznidazole (BZL) and nifurtimox (NFX), introduced more than fifty years ago and no new advances have been made since then. Nucleoside diphosphate kinases (NDPK) are key metabolic enzymes which have gained interest as drug targets of pathogen organisms.

Educational innovation as a communication strategy in palliative care: A study protocol and preliminary results.

Introduction: Society associates palliative care with "death" or "end of life", which cause them fear and anxiety. In Spain, the media worsens the misunderstanding by depicting a wrong picture of palliative care. Educational innovation for university students may serve as an alternative communication strategy.

Functional Response and Parasitism rate of Trichogramma galloi Zucchi (Hymenoptera: Trichogrammatidae), a Parasitoid of Eggs of Sugarcane Borer.

The evaluation of parameters such as functional response and parasitism rates is essential for the choice and use of a control agent, which contributes to a positive or negative outcome of Biological Control. Diatraea saccharalis (Fabricius, 1794) (Lepidoptera: Crambidae), commonly called sugarcane borer, is the main pest of the sugarcane crop and its management can be done by the parasitoid Trichogramma galloi Zucchi, 1988 (Hymenoptera: Trichogrammatidae), which attacks the egg stage of the pest before damage is done to the crop. To better understand this host/parasitoid relationship, the functional response and parasitism rate of T.

Palliative care stay room - designing, testing and evaluating a gamified social intervention to enhance palliative care awareness.

Introduction: The message of palliative care can be promoted using creative thinking and gamification. It can be an innovative strategy to promote changes in behaviour, promote thinking, and work on skills such as empathy.

Aim: Design, test and evaluate a gamified social intervention to enhance palliative care awareness among young university students from non-health background.

The impact of COVID-19 on palliative care social work: An online survey by a European Association of Palliative Care Task Force.

Background: The SARS-Cov-2 (COVID-19) pandemic affected the delivery of health and social care services globally. However, little is known about how palliative care social work services were impacted.

Aim: The aim of this study was to capture and analyse data from palliative care social workers who provided professional support in a range of settings across 21 countries during the COVID-19 pandemic.

Effectiveness of the repurposed drug isotretinoin in an experimental murine model of Chagas disease.

Benznidazole and nifurtimox are the drugs currently used for the treatment of Chagas disease, however its side effects may affect patient adherence. In the search for new alternative therapies, we previously identified isotretinoin (ISO), an FDA-approved drug widely used for the treatment of severe acne through a drug repurposing strategy. ISO shows a strong activity against Trypanosoma cruzi parasites in the nanomolar range, and its mechanism of action is through the inhibition of T.

Refuge distributions and landscape connectivity affect host-parasitoid dynamics: Motivations for biological control in agroecosystems.

Species distributions are affected by landscape structure at different spatial scales. Here we study how the interplay between dispersal at different spatial scales and landscape connectivity and composition affect local species dynamics. Using a host-parasitoid model, we assessed host density and host occupancy on the landscape, under different parasitoid dispersal ranges and three local distributions of non-crop habitats, areas where hosts are unable to grow but parasitoids are provided with alternative hosts and food resources.

Revisiting trypanosomatid nucleoside diphosphate kinases.

Background: An increasing amount of research has led to the positioning of nucleoside diphosphate kinases (NDPK/NDK) as key metabolic enzymes among all organisms. They contribute to the maintenance the intracellular di- and tri- phosphate nucleoside homeostasis, but they also are involved in widely diverse processes such as gene regulation, apoptosis, signal transduction and many other regulatory roles.

Objetive: Examine in depth the NDPKs of trypanosomatid parasites responsible for devastating human diseases (e.

Trypanocidal activity of the anthocyanidin delphinidin, a non-competitive inhibitor of arginine kinase.

Arginine kinase from (TcAK) catalyzes the interconversion of arginine and phosphoarginine to maintain the ATP/ADP cell balance, and is involved in the parasites' energetic homeostasis and stress responses. Using virtual screening approaches, some plant-derived polyphenolic pigments, such as anthocyanidins, were predicted to inhibit TcAK activity. Here, it was demonstrated that the anthocyanidin delphinidin showed a non-competitive inhibition mechanism of TcAK (Ki arginine = 1.

Palliative Care Professionals' Message to Others: An Ethnographic Approach.

Introduction: Palliative care continues to be misunderstood within the world of healthcare. Palliative care professionals are key agents for promoting a greater understanding of their field. This study aims to examine the messages, both implicit and explicit, that palliative care professionals transmit about themselves and their work within their teams and to other health professionals.

Effect of capsaicin on the protozoan parasite Trypanosoma cruzi.

Trypanosoma cruzi is the causative agent of Chagas disease. There are only two approved treatments, both of them unsuitable for the chronic phase, therefore the development of new drugs is a priority. Trypanosoma cruzi arginine kinase (TcAK) is a promising drug target since it is absent in humans and it is involved in cellular stress responses.

Dynamics of food sources, ecotypic distribution and Trypanosoma cruzi infection in Triatoma brasiliensis from the northeast of Brazil.

Innovative approaches used to combat Chagas disease transmission tend to combine a set of comprehensive efforts to understand the ecology of local vectors. In this work we identified molecularly the blood meal of 181 Triatoma brasiliensis, distributed in 18 populations (8 sylvatic and 10 peridomestic), which were collected across a range of 240 km (East-West) and 95 km (North-South) in the semi-arid region of northeastern, Brazil. We used the vertebrate mitochondrial gene (cytochrome B) sequencing applied to DNA isolated from bug midgut to identify the insect blood meal sources via the BLAST procedure.

Role of Trypanosoma cruzi nucleoside diphosphate kinase 1 in DNA damage responses.

Background: NME23/NDPKs are well conserved proteins found in all living organisms. In addition to being nucleoside diphosphate kinases (NDPK), they are multifunctional enzymes involved in different processes such as DNA stability, gene regulation and DNA repair among others. TcNDPK1 is the canonical NDPK isoform present in Trypanosoma cruzi, which has nuclease activity and DNA-binding properties in vitro.

A generalized transition model for grouped longitudinal categorical data.

Transition models are an important framework that can be used to model longitudinal categorical data. They are particularly useful when the primary interest is in prediction. The available methods for this class of models are suitable for the cases in which responses are recorded individually over time.

Palliative care in its own discourse: a focused ethnography of professional messaging in palliative care.

Background: Despite 50 years of modern palliative care (PC), a misunderstanding of its purpose persists. The original message that PC is focused on total care, helping to live until the person dies, is being replaced and linked to feelings of fear, anxiety and death, instead of compassion, support or appropriate care. Society is still afraid to speak its name, and specialized units are identified as "places of death" as opposed to "places of life" meant to treat suffering.

Computational approaches for drug discovery against trypanosomatid-caused diseases.

During three decades, only about 20 new drugs have been developed for malaria, tuberculosis and all neglected tropical diseases (NTDs). This critical situation was reached because NTDs represent only 10% of health research investments; however, they comprise about 90% of the global disease burden. Computational simulations applied in virtual screening (VS) strategies are very efficient tools to identify pharmacologically active compounds or new indications for drugs already administered for other diseases.

Crystal violet structural analogues identified by in silico drug repositioning present anti-Trypanosoma cruzi activity through inhibition of proline transporter TcAAAP069.

Background: Crystal violet (CV) was used for several years in blood banks to eliminate the parasite Trypanosoma cruzi in endemic areas in order to prevent transfusion-transmitted Chagas disease. One mechanism of action described for CV involves inhibition of proline uptake. In T.

In silico repositioning of etidronate as a potential inhibitor of the Trypanosoma cruzi enolase.

Enolase is a glycolytic enzyme that catalyzes the interconversion between 2-phosphoglycerate and phosphoenolpyruvate. In trypanosomatids, enolase was proposed as a key enzyme after in silico and in vivo analysis and it was validated as a protein essential for the survival of the parasite. Therefore, enolase constitutes an interesting enzyme target for the identification of drugs against Chagas disease.