Resilience and Its Limits: The Roles of Individual Resilience, Social Capital, Racial Discrimination, and Binge Drinking on Sexual Behavior Among Black Heterosexual Men.

In response to the increased recognition of racism as a public health crisis, we assessed links between racial discrimination and HIV-related risk behavior for Black men. Specifically, using survey data from 530 Black heterosexual men (18-44 years old, M = 31.0, SD = 7.8), we tested two moderated-mediation models: (1) a protective model, in which resilience and social capital protected against the indirect effect of racial discrimination on alcohol-related sexual behavior via binge drinking, and (2) a bounded model, in which racial discrimination limited the indirect effects of resilience and social capital on alcohol-related sexual behavior via binge drinking. We found support for the bounded model only. Specifically, resilience was indirectly associated with decreased alcohol-related sexual behavior via lower binge drinking when racial discrimination was low to moderately high, but not when racial discrimination was at its highest levels. Resilience was not directly associated with alcohol-related sexual behavior. Social capital was directly related to lower odds of alcohol-related sexual behavior. At high levels of racial discrimination, however, social capital was indirectly related to increased alcohol-related sexual behavior via binge drinking. High levels of racial discrimination limit beneficial effects of resilience on alcohol-related sexual behavior. Social capital maintains a beneficial effect if social bonds are not associated with binge-drinking norms or behaviors. Results highlight the limitations of individual-level resilience and the need to conceptualize and support resilience as a social-structural resource.

Improved Phenolic Profile, Sensory Acceptability, and Storage Stability of Strawberry Decoction Beverages Added with Blueberry Decoctions.

Blueberries are rich in polyphenols, anthocyanins, and proanthocyanidins; however, they are expensive. In contrast, strawberries have a lower cost and are rich in ellagitannins. Therefore, a strawberry-blueberry blend decoction could produce a low-cost beverage with a rich and diverse phytochemical profile. In this study, we developed three berry-based beverages: blend strawberry-blueberry (SBB), strawberry (SB), and blueberry (BB). The polyphenol profile of the beverages was characterized by UPLC-ESI-Q-ToF MSE, an acceptability test was carried out with potential consumers, and a stability analysis was performed under commercial storage conditions (4, 25, and 34 °C). The SBB exhibited a good sensorial preference (score of 81.3) and showed high contents and a diverse composition of anthocyanins and proanthocyanidins, which were up to 3.0- and 1.2-fold higher compared to the SB, respectively. Regarding the storage stability, the SBB showed better retention of lightness (97.9%) and red color (66.7%) at the end of the storage under refrigerated conditions (4 °C) compared to the SB. Therefore, these results demonstrate that using blended berry fruits leads to the creation of a functional beverage that has higher nutraceutical potential than single-berry-based beverages.

Hoarding behaviour: special features and complications in real-world clinical practice.

OBJECTIVE: Hoarding behaviour is a common but poorly characterised problem in real-world clinical practice. Although hoarding behaviour is the key component of Hoarding Disorder (HD), there are people who exhibit hoarding behaviour but do not suffer from HD. The aim of the present study was to characterise a clinical sample of patients with clinically relevant hoarding behaviour and evaluate the differential characteristics between patients with and without HD. METHODS: This study included patients who received treatment at the home visitation program in Barcelona (Spain) from January 2013 through December 2020, and scored ≥ 4 on the Clutter Image Rating scale. Sociodemographic, DSM-5 diagnosis, clinical data and differences between patients with and without an HD diagnosis were assessed. RESULTS: A total of 243 subjects were included. Hoarding behaviour had been unnoticed in its early stages and the median length in the sample was 10 years (IQR 15). 100% of the cases had hoarding-related complications. HD was the most common diagnosis in 117 patients (48.1%). CONCLUSIONS: The study found several differential characteristics between patients with and without HD diagnosis. Alcohol use disorder could play an important role among those without HD diagnosis. Home visitation programs could improve earlier detection, preventing hoarding-related complications.

Damage response protein 1 (Dap1) functions in the synthesis of carotenoids and sterols in Xanthophyllomyces dendrorhous.

Cytochrome P450s (P450s) are heme-containing proteins involved in several cellular functions, including biosynthesis of steroidal hormones, detoxification of xenobiotic compounds, among others. Damage response protein 1 (Dap1) has been described as a positive regulator of P450s through protein-protein interactions in organisms such as Schizosaccharomyces pombe. Three P450s in the carotenogenic yeast Xanthophyllomyces dendrorhous have thus far been characterized: Cyp51 and Cyp61, which are involved in ergosterol biosynthesis, and CrtS (astaxanthin synthase), which is involved in biosynthesis of the carotenoid astaxanthin. In this work, we describe the X. dendrorhous DAP1 gene, deletion of which affected yeast pigmentation by decreasing the astaxanthin fraction and increasing the ß-carotene (a substrate of CrtS) fraction, which is consistent with the known role of CrtS. We found that the proportion of ergosterol was also decreased in the Δdap1 mutant. However, even though the fractions of the end products of these two pathways (the synthesis of carotenoids and sterols) were decreased in the Δdap1 mutant, the transcript levels of genes from the P450 systems involved were higher than those in the wild-type strain. We demonstrate that Dap1 coimmunoprecipitates with these three P450s, suggesting that Dap1 interacts with these three proteins. We propose that Dap1 regulates the synthesis of astaxanthin and ergosterol in X. dendrorhous, probably by regulating the P450s involved in both biosynthetic pathways at the protein level. This work suggests a new role for Dap1 in the regulation of carotenoid biosynthesis in X. dendrorhous.

An Experimental Study of the Effects of Patient Race, Sexual Orientation, and Injection Drug Use on Providers' PrEP-Related Clinical Judgments.

Social biases may influence providers' judgments related to pre-exposure prophylaxis (PrEP) and patients' consequent PrEP access. US primary and HIV care providers (n = 370) completed an experimental survey. Each provider reviewed one fictitious medical record of a patient seeking PrEP. Records varied by patient race (Black or White) and risk behavior (man who has sex with men [MSM], has sex with women [MSW], or injects drugs [MID]). Providers reported clinical judgments and completed measures of prejudice. Minimal evidence of racially biased judgments emerged. Providers expressing low-to-moderate sexual prejudice judged the MSM as more likely than the MSW to adhere to PrEP, which was associated with greater PrEP prescribing intention; sexual prejudice was negatively associated with anticipated MSM adherence. Providers judged the MID to be at higher risk, less likely to adhere, less safety-conscious, and less responsible than both the MSM and MSW; adverse adherence and responsibility judgments were associated with lower prescribing intention.

RESUMEN: Los sesgos sociales pueden influir sobre los juicios de proveedores de salud con respecto a la profilaxis pre-exposición (PrEP) y el consecuente acceso de los pacientes a PrEP. Proveedores de cuidados primarios y de VIH en los Estados Unidos (n = 370) respondieron una encuesta experimental. Cada proveedor leyó una historia médica de un paciente ficticio interesado en obtener PrEP. Las historias médicas variaron la raza (Negro o Blanco) y conducta de riesgo (hombre que tiene sexo con hombres [HSH], hombre que tiene sexo con mujeres [HSM], u hombre  usuario de drogas inyectables [HDI]) del paciente. Los proveedores reportaron juicios clínicos y completaron medidas sobre prejuicio. La evidencia sobre sesgos raciales en los juicios clínicos fue mínima. Los proveedores que expresaron prejuicio sexual bajo a moderado, juzgaron que el paciente HSH tendría mayor adherencia a PrEP que el paciente HSM, lo cual se asoció con mayor intención de prescribir PrEP; el prejuicio sexual se asoció negativamente con la adherencia anticipada en HSH. El paciente HDI fue percibido como en mayor riesgo, con menor adherencia, menos preocupado por la seguridad, y menos responsable que los HSH y HSM; los juicios sobre baja adherencia y responsabilidad estuvieron asociados con menor intención de prescribir PrEP.

Colleters in Cephalanthus (Rubiaceae) and reevaluation of occurrence of corolline colleters in Angiosperms.

Colleters are glandular structures related to young shoots protection. In several Angiosperm families, as in Rubiaceae colleters are taxonomically important. This study reports presence, location, morpho-anatomical structure, ontogeny and histochemistry of colleters in vegetative and reproductive organs in 6 species of Cephalanthus and 20 species representatives of the tribe Naucleeae. Primarily based on their color and their secretion color, they were classified into light (LC) and dark (DC) colleters. The LC are exclusive to the inner side of the stipule, while the DC are found in several vegetative and reproductive organs. Histochemical studies revealed that higher mucilage and phenol content in DC could explain the dark color secretion. Results were analyzed at genus, tribe and subtribe levels, evidencing the taxonomic relevance in the family. Finally, the presence of corolline colleters in angiosperm flowers was reviewed. It was confirmed that, besides Cephalanthus, they are only present in Adenoa (Passifloraceae) and Chamaecrista (Fabaceae). Therefore, structures described as colleters in Nerium (Apocynaceae) and Cuscuta (Cuscutaceae) corollas do not correspond to colleters. This proves that corolline colleter is a rare character in Angiosperms. To conclude we provide a record of presence/absence, type and distribution of corolline colleters in an Angiosperm phylogenetic tree.

Perceptions of power and sexual pleasure associated with sexual behaviour profiles among Latino sexual minority men.

In a body of research typically focused on risk reduction and disease prevention, other factors motivating the sexual behaviours of Latino sexual minority men, such as resource-based power and sexual pleasure, are less well understood. To this end, Latino immigrant sexual minority men living in New York City were surveyed about their sexual behaviours, perceived power differentials, and pleasure from insertive and receptive anal intercourse. Power and pleasure were examined as associations with behavioural profiles identified through latent class analysis, adjusting for age and partner type. Four latent classes of Latino sexual minority men were identified based on behaviours reported during the most recent sexual event: behaviourally insertive (14.2%), behaviourally versatile (25.9%), behaviourally receptive (29.2%), and limited penetrative behaviour (30.7%). Participants who derived pleasure from insertive and receptive anal intercourse had higher odds of belonging in the behaviourally insertive and behaviourally receptive class, respectively. Perceptions of resource-based power were not associated with class membership. Findings highlight the importance of sexual pleasure as a driver of sexual behaviour, irrespective of power dynamics. Sexual health curricula and interventions for sexual minority men should consider sexual pleasure and sex-affirmative frameworks when providing sexuality education and promoting sexual wellbeing.

Determinants of caregiving burden among informal caregivers of adult care recipients with chronic illness.

AIMS AND OBJECTIVES: This study examined the predictors of caregiver burden based on patient and caregiver characteristics in a sample of Spanish caregivers looking after adult patients with chronic disease. The effect of task type and patient-caregiver interaction is also analysed. BACKGROUND: Specific predictors of caregiver burden have been widely examined in the literature. Few studies, however, jointly analyse a wide range of factors, including the effect of task type and patient-caregiver interaction. DESIGN: Correlational study. METHODS: One hundred and thirty five informal caregivers for 148 care recipients were recruited from primary health care centres. The caregivers responded to the short version of the Zarit Burden Interview (ZBI), the DEPendency index-6 Dimensions (DEP-6D), and reported how long they spent on caregiving on a daily basis. Sociodemographic and health characteristics were also recorded. Linear and logistic regression models were used to evaluate factors associated with ZBI scores and the likelihood of being severely burdened, respectively. This research complies with STROBE guidelines for observational studies. RESULTS: Severe burden was present in 62% of the caregivers. Regression analysis shows that burden severity increases significantly with the level of dependence when the latter is measured either by DEP-6D or by time spent on basic activities. Care related to incontinence and mobility has the greatest effect on burden, which is aggravated when the patient has behavioural problems. Poor caregiver health or not being retired also contributes to burden levels. CONCLUSIONS: These results establish that caregiver burden is related to characteristics of both the caregiver and the care recipient as well as to their interaction. RELEVANCE TO CLINICAL PRACTICE: The findings indicate that the socio-sanitary attention focused on reducing caregiver burden must address the caregiver and patient as a dyad. Identifying the dependence level and the patient's aggressive behaviour can be a good predictor of caregiver burden.

Metallopeptidase Stp1 activates the transcription factor Sre1 in the carotenogenic yeast Xanthophyllomyces dendrorhous.

Xanthophyllomyces dendrorhous is a basidiomycete yeast known as a natural producer of astaxanthin, a carotenoid of commercial interest because of its antioxidant properties. Recent studies indicated that X. dendrorhous has a functional SREBP pathway involved in the regulation of isoprenoid compound biosynthesis, which includes ergosterol and carotenoids. SREBP is a major regulator of sterol metabolism and homeostasis in mammals; characterization in fungi also provides information about its role in the hypoxia adaptation response and virulence. SREBP protease processing is required to activate SREBP pathway functions in fungi. Here, we identified and described the STP1 gene, which encodes a metallopeptidase of the M50 family involved in the proteolytic activation of the transcription factor Sre1 of the SREBP pathway, in X. dendrorhous We assessed STP1 function in Δstp1 strains derived from the wild-type and a mutant of ergosterol biosynthesis that overproduces carotenoids and sterols. Bioinformatic analysis of the deduced protein predicted the presence of characteristic features identified in homologs from mammals and fungi. The Δstp1 mutation decreased yeast growth in the presence of azole drugs and reduced transcript levels of Sre1-dependent genes. This mutation also negatively affected the carotenoid- and sterol-overproducing phenotype. Western blot analysis demonstrated that Sre1 was activated in the yeast ergosterol biosynthesis mutant and that the Δstp1 mutation introduced in this strain prevented Sre1 proteolytic activation. Overall, our results demonstrate that STP1 encodes a metallopeptidase involved in proteolytic activation of Sre1 in X. dendrorhous, contributing to our understanding of fungal SREBP pathways.

[Need and use of assistive devices and architectural facilitators in a dependent population]. / Necesidad y uso de productos de apoyo y facilitadores arquitectónicos en población dependiente.

OBJECTIVE: To describe the use and perception of the need for assistive devices and identify their relationship with instruments to measure dependence and caregiver burden. DESIGN: Cross-sectional study. LOCATION: Primary Health Care in the southern area of Pontevedra. PARTICIPANTS: A total of 112 informal caregivers providing care to 125 dependent persons. KEY MEASUREMENTS: Through a personal interview, data was collected on the use and perception of the need for these devices. In addition, sociodemographic data and information on the time dedicated to daily care, caregiver burden, the Dependency Rating Scale, and the DEP-6D dependency indicator were obtained. A contrast mean was used to identify whether there are significant differences in these indicators, depending on whether or not they use the facilitator devices. A logistic regression was performed to identify those variables most associated with not having a need covered. RESULTS: More than half (60%: 95% CI; 50.9-68.7) of dependent persons have unmet needs for these devices. These needs are mainly associated with a low family income, a high degree of dependence, and better health of the caregiver; although in extreme situations of greater dependence and worse health of the caregiver these deficiencies are smoothed out. CONCLUSIONS: There is a strong association between the level of dependence and the use of these devices. However, there is a high percentage of the sample that do not have the products that they need, which are associated with the socioeconomic situation of the household as well as with the characteristics of the dependent person and the caregiver.

A meta-analysis of the association between caregiver burden and the dependent's illness.

The caregiver burden is frequently used to refer to the physical and psychological problems that may arise from caring for a dependent relative. We conducted a meta-analysis to see whether Zarit Burden Interview (ZBI) scores differed by dependent's pathology. Results from 125 studies showed that caregivers of individuals with a physical disability have an estimated mean ZBI score (±SE) of 27 ± 2.6 - a score significantly lower than for caregivers of persons with dementia or cognitive impairment (34.1 ± 1.1), mental illness (32.6 ± 1.7), or Alzheimer's (32.5 ± 1). Our analysis of Alzheimer's revealed differences among cases of mildly (25.8 ± 5.2), moderately (35.6 ± 7.8), and severely (42.6 ± 7.9) afflicted dependents.

Adsorption of textile dyes using an activated carbon and crosslinked polyvinyl phosphonic acid composite.

Activated carbon is one of the most studied materials for the adsorption of textile dyes. The adsorptive properties of this material are a result of its high specific surface area and some of the functional groups acquired during the chemical activation. This work reports the preparation of a composite material using CarZN400 activated carbon and polyelectrolyte poly(VPA-co-TEGDMA). The adsorptive properties of the material obtained are a result of the combination of the high specific surface area of the carbon and the ionic exchange capability of the polyelectrolyte. The covering of the surface of activated carbon with poly(VPA-co-TEGDMA) allowed to obtain a composite material (CarZN400C) with greater adsorption capacity for cationic dyes compared to the carbon. The adsorption isotherms of the dyes fit Langmuir's model, and the adsorptive capacities for cationic dyes for CarZN400C ranged between 222 and 416 mg/g. The kinetic study showed that the adsorption of basic and acid dyes fit the pseudo-second order kinetic model. CarZN400C also exhibited the ability to adsorb textile dyes present in wastewater. It was observed that, when making a previous treatment of the wastewater using coagulation-flocculation followed by adsorption using CarZN400C, it was possible to obtain removal percentages of color close to 100%. The wastewaters treated by coagulation-flocculation and adsorption improved their quality by decreasing the value for COD.

Structure, target-specificity and expression of PN_LNC_N13, a long non-coding RNA differentially expressed in apomictic and sexual Paspalum notatum.

KEY MESSAGE: ncRNA PN_LNC_N13 shows contrasting expression in reproductive organs of sexual and apomictic Paspalum notatum genotypes. Apomictic plants set genetically maternal seeds whose embryos derive by parthenogenesis from unreduced egg cells, giving rise to clonal offspring. Several Paspalum notatum apomixis related genes were identified in prior work by comparative transcriptome analyses. Here, one of these candidates (namely N13) was characterized. N13 belongs to a Paspalum gene family including 30-60 members, of which at least eight are expressed at moderate levels in florets. The sequences of these genes show no functional ORFs, but include segments of different protein coding genes. Particularly, N13 shows partial identity to maize gene BT068773 (RESPONSE REGULATOR 6). Secondary structure predictions as well as mature miRNA and target cleavage detection suggested that N13 is not a miRNA precursor. Moreover, N13 family members produce abundant 24-nucleotide small RNAs along extensive parts of their sequences. Surveys in the GREENC and CANTATA databases indicated similarity with plant long non-coding RNAs (lncRNAs) involved in splicing regulation; consequently, N13 was renamed as PN_LNC_N13. The Paspalum BT068773 predicted ortholog (N13TAR) originates floral transcript variants shorter than the canonical maize isoform and with possible structural differences between the apomictic and sexual types. PN_LNC_N13 is expressed only in apomictic plants and displays quantitative representation variation across reproductive developmental stages. However, PN_LNC_N13-like homologs and/or its derived sRNAs showed overall a higher representation in ovules of sexual plants at late premeiosis. Our results suggest the existence of a whole family of N13-like lncRNAs possibly involved in splicing regulation, with some members characterized by differential activity across reproductive types.

[Economic considerations on Cuban public health and its relationship with universal healthConsiderações econômicas sobre a saúde pública cubana e sua relação com a saúde universal]. / Consideraciones económicas sobre la salud pública cubana y su relación con la salud universal.

This paper presents, in the context of the universal health strategy, some general considerations and economic actions on financing, efficiency and other economic challenges of public health in Cuba. Official bibliographic sources of the Cuban state were revised up to 2015. The analyses of time series were adjusted to constant prices of 1997 and the official exchange rate of 1 Cuban peso = 1 US dollar. The Cuban National Health System has a solid infrastructure, consisting of a wide network of health facilities that guarantee full coverage, access and equity in the services provided to the population through qualified human resources. An economic analysis was carried out under the conceptual framework of the universal health strategy, with an emphasis in financing, efficiency and challenges of the Cuban public health system to maintain the right to health of its citizens, equity, coverage and access to the services provided, including the elimination of economic, sociocultural and gender barriers, as well as solidarity with the Cuban population and the world. It was concluded that in Cuba, universal health is considered one of its most valuable achievements, although it is needed a most efficient analysis of reliable and available sources, research and application of results to practice on the strengths and weaknesses of the system regarding health economics, updating and a better use of resources and technologies, as well as deepening the lessons learned and facing remaining challenges.

Este artigo apresenta, no contexto da estratégia da saúde universal, algumas considerações gerais e ações econômicas sobre financiamento, eficiência e outros desafios econômicos da saúde pública em Cuba. As fontes bibliográficas oficiais do estado cubano foram revisadas até 2015. As análises das séries temporais foram ajustadas aos preços constantes de 1997 e à taxa oficial de câmbio 1 peso cubano = 1 dólar norte- americano. O Sistema Nacional de Saúde cubano possui uma sólida infra-estrutura, constituída por uma ampla rede de instalações de saúde que garantem cobertura total, acesso e equidade nos serviços da população com recursos humanos qualificados. Uma análise econômica foi realizada no marco conceitual da estratégia de saúde universal que enfatizou o financiamento, eficiência e desafios da saúde pública cubana para manter o direito à saúde de seus cidadãos, equidade, cobertura e acesso no serviços prestados, eliminação de barreiras econômicas, socioculturais e de gênero; bem como a solidariedade com a população cubana e o mundo. Concluiu-se que, em Cuba, a saúde universal é considerada uma das suas conquistas mais valiosas, embora requer a análise mais eficiente de fontes confiáveis e disponíveis, pesquisa e aplicação de resultados para a prática dos pontos fortes e fracos do sistema em termos de economia da saúde, atualização e uso de recursos e tecnologias, além de aprofundar as lições aprendidas e enfrentando um conjunto de desafios.

[Clinical, pathological and microbiological association of Helicobacter pylori in gastric biopsies in the department of Caldas-Colombia]. / Asociación clínica, patológica y microbiológica de Helicobacter pylori en biopsias gástricas en el departamento de Caldas-Colombia.

OBJECTIVE: To establish the clinical, pathological and microbiological association of Helicobacter pylori in gastric biopsies in a population of the department of Caldas (Colombia). MATERIALS AND METHODS: We included 72 patients, who were referred for digestive endoscopy to the San Marcel clinic in the city of Manizales during the second half of 2015; two biopsies of the antrum and two of the body of the stomach were taken for histopathological study and microbiological culture. Data were submitted to descriptive and relational statistical procedures. RESULTS: H. pylori was found in 47.2% by histological analysis and 26.4% by microbiological culture, with predominance in the female sex. Epigastralgia is the main reason for consultation associated with H. pylori infection. CONCLUSION: we found an association between the reason for consultation, female sex, microbiological culture and histological presence of H. pylori. Age was associated with established endoscopic diagnosis. The culture presented a high specificity (84.2%) and a low sensitivity (38.2%), compared to the histopathological finding.

Characterization of the cytochrome P450 monooxygenase genes (P450ome) from the carotenogenic yeast Xanthophyllomyces dendrorhous.

BACKGROUND: The cytochromes P450 (P450s) are a large superfamily of heme-containing monooxygenases involved in the oxidative metabolism of an enormous diversity of substrates. These enzymes require electrons for their activity, and the electrons are supplied by NAD(P)H through a P450 electron donor system, which is generally a cytochrome P450 reductase (CPR). The yeast Xanthophyllomyces dendrorhous has evolved an exclusive P450-CPR system that specializes in the synthesis of astaxanthin, a carotenoid with commercial potential. For this reason, the aim of this work was to identify and characterize other potential P450 genes in the genome of this yeast using a bioinformatic approach. RESULTS: Thirteen potential P450-encoding genes were identified, and the analysis of their deduced proteins allowed them to be classified in ten different families: CYP51, CYP61, CYP5139 (with three members), CYP549A, CYP5491, CYP5492 (with two members), CYP5493, CYP53, CYP5494 and CYP5495. Structural analyses of the X. dendrorhous P450 proteins showed that all of them have a predicted transmembrane region at their N-terminus and have the conserved domains characteristic of the P450s, including the heme-binding region (FxxGxRxCxG); the PER domain, with the characteristic signature for fungi (PxRW); the ExxR motif in the K-helix region and the oxygen-binding domain (OBD) (AGxDTT); also, the characteristic secondary structure elements of all the P450 proteins were identified. The possible functions of these P450s include primary, secondary and xenobiotic metabolism reactions such as sterol biosynthesis, carotenoid synthesis and aromatic compound degradation. CONCLUSIONS: The carotenogenic yeast X. dendrorhous has thirteen P450-encoding genes having potential functions in primary, secondary and xenobiotic metabolism reactions, including some genes of great interest for fatty acid hydroxylation and aromatic compound degradation. These findings established a basis for future studies about the role of P450s in the carotenogenic yeast X. dendrorhous and their potential biotechnological applications.

Sugary secretions of wasp galls: a want-to-be extrafloral nectar?

Background and Aims: The most widespread form of protective mutualisms is represented by plants bearing extrafloral nectaries (EFNs) that attract ants and other arthropods for indirect defence. Another, but less common, form of sugary secretion for indirect defence occurs in galls induced by cynipid wasps. Until now, such galls have been reported only for cynipid wasps that infest oak trees in the northern hemisphere. This study provides the first evidence of galls that exude sugary secretions in the southern hemisphere and asks whether they can be considered as analogues of plants' EFNs. Methods: The ecology and anatomy of galls and the chemical composition of the secretion were investigated in north-western Argentina, in natural populations of the host trees Prosopis chilensis and P. flexuosa . To examine whether ants protect the galls from natural enemies, ant exclusion experiments were conducted in the field. Key Results: The galls produce large amounts of sucrose-rich, nectar-like secretions. No typical nectary and sub-nectary parenchymatic tissues or secretory trichomes can be observed; instead there is a dense vascularization with phloem elements reaching the gall periphery. At least six species of ants, but also vespid wasps, Diptera and Coleoptera, consumed the gall secretions. The ant exclusion experiment showed that when ants tended galls, no differences were found in the rate of successful emergence of gall wasps or in the rate of parasitism and inquiline infestation compared with ant-excluded galls. Conclusions: The gall sugary secretion is not analogous to extrafloral nectar because no nectar-producing structure is associated with it, but is functionally equivalent to arthropod honeydew because it provides indirect defence to the plant parasite. As in other facultative mutualisms mediated by sugary secretions, the gall secretion triggers a complex multispecies interaction, in which the outcome of individual pair-wise interactions depends on the ecological context in which they take place.