Dietary protein modulates intestinal dendritic cells to establish mucosal homeostasis.

Dietary proteins are taken up by intestinal dendritic cells (DC), cleaved into peptides, loaded to Major Histocompatibility Compexes (MHC), and presented to T cells to generate an immune response. Amino acid (AA)-diets do not have the same effects because AAs cannot bind to MHC to activate T cells. Here, we show that impairment in Treg cell generation and loss of tolerance in mice fed a diet lacking whole protein is associated with major transcriptional changes in intestinal DCs including downregulation of genes related to DC maturation, activation and migration and decreased gene expression of immune checkpoint molecules. Moreover, the AA-diet had a profound effect on microbiome composition, including an increase in Akkermansia muciniphilia and Oscillibacter and decrease in Lactococcus lactis and Bifidobacterium. Although microbiome transfer experiments showed that AA driven microbiome modulate intestinal DC gene expression, most of the unique transcriptional change in DC was linked to the absence of whole protein in the diet. Our findings highlight the importance of dietary proteins for intestinal DC function and mucosal tolerance.

Trend and spatial pattern of intimate partner rape notifications against women in Northeast Brazil (2013-2022).

OBJECTIVE: To analyze the trend and spatial pattern of intimate partner rape reports against women in Northeast Brazil. METHODS: Ecological time-series study and spatial analysis with secondary data from the Notifiable Diseases Information System between 2013 and 2022. Gross rape rates were calculated by type of intimate partner and by age group of the victim. Prais-Winsten regression was used to calculate the trend, and the global and local Moran indices were used for spatial analysis. RESULTS: A total of 5,542 cases of intimate partner rape were reported. Spousal rates ranged from 0.34/100,000 women in 2013 to 0.51/100,000 in 2017, with greater increases between 2018 (1.04/100 thousand) and 2022 (1.28/100 thousand). There was an upward trend in the Northeast as a whole (APC=19.47; 95%CI 15.88-23.22) and in almost all states, except Paraíba and Sergipe. Cases perpetrated by boyfriends (APC=23.90; 95%CI 12.80-36.09) and among women aged 15 to 19 years (APC=22.63; 95%CI 4.18-44.35) showed the highest annual variation. A concentration of high rates was observed in several municipalities in the northwest of Ceará and southeast of Pernambuco. CONCLUSION: The trend in intimate partner rape rates against women increased in the Northeast, especially among younger women and by boyfriends, with a greater agglomeration of notifications in Ceará and Pernambuco.

Effect of treatment with phosphate, casein phosphopeptide and fluoride on the remineralization: in vitro study.

This study aimed to evaluate in vitro the effect protocols and anticaries agents containing casein amorphous calcium fluoride phosphopeptide-phosphate (CPP-ACPF, MI Paste Plus), sodium trimetaphosphate (TMP) and fluoride (F), in remineralization of caries lesions. Bovine enamel blocks with initial caries lesions were divided into groups (n = 12): 1) Toothpaste without F-TMP-MI Plus (Placebo); 2) Toothpaste 1100 ppm F (1100F), 3) 1100F + MI Paste Plus (1100F-MI Paste Plus), 4) Toothpaste with 1100F + Neutral gel with 4,500 ppm F + 5%TMP (1100F + Gel TMP) and 5) Toothpaste with 1100F + Neutral gel with 9,000 ppm F (1100F + Gel F). For the 4 and 5 groups the gel was applied only once for 1 minute, initially to the study. For the 3 group, after treatment with 1100F, MI Paste Plus was applied 2x/day for 3 minute. After pH cycling, the percentage of surface hardness recovery (%SHR); integrated loss of subsurface hardness (ΔKHN); profile and depth of the subsuperficial lesion (PLM); concentrations of F, calcium (Ca) and phosphorus (P) in enamel was determined. The data were analyzed by ANOVA (1-criterion) and Student-Newman-Keuls test (p < 0.001). Treatment with 1100F alone led to ~ 28% higher remineralization when compared to treatment with 1100F associated with MI Paste Plus (p < 0.001). The 1100F and 1100F + Gel F groups showed similar values for %SHR (p = 0.150). 1100F + Gel TMP treatment also remineralized the enamel surface by ~ 30% and 20% when compared to the 1100F + Gel F and 1100F groups (p < 0.001). The lower lesion depth (ΔKHN) was observed for the 1100F + Gel TMP group (p < 0.001), where it was 54% and 44% lower in comparison to the 1100F and 1100F + Gel F groups (p < 0.001). Polarized light microscopy photomicrographs showed subsurface lesions in all groups, but these lesions were present to a lower extent in the 1100F + Gel TMP group (p < 0.001). Treatment with 1100F + Gel TMP promoted an increase in the concentration of Ca in the enamel by ~ 57% and ~ 26% when compared to the 1100F and 1100F + MI Paste Plus groups (p < 0.001), respectively. There were no significant differences between the 1100F, 1100F + MI Paste Plus and 1100F + Gel F groups (p > 0.001). Similar values of P in the enamel were observed in the 1100F, 1100F + MI Paste Plus and 1100F + Gel F groups (p > 0.001), except for the 1100F + Gel TMP group, which presented a high concentration (p < 0.001). We conclude that the 1100F+TMP gel treatment/protocol led to a significant increased remineralization when compared to the other treatments/protocols and may be a promising strategy for patients with early caries lesions.

Can in vitro/in silico tools improve colonic concentration estimations for oral extended-release formulations? A case study with upadacitinib.

Upadacitinib, classified as a highly soluble drug, is commercially marketed as RINVOQ®, a modified-release formulation incorporating hydroxypropyl methylcellulose as a matrix system to target extended release throughout the gastrointestinal (GI) tract. Our study aimed to explore how drug release will occur throughout the GI tract using a plethora of in vitro and in silico tools. We built a Physiologically-Based Pharmacokinetic (PBPK) model in GastroPlus™ to predict the systemic concentrations of the drug when administered using in vitro dissolution profiles as input to drive luminal dissolution. A series of in vitro dissolution experiments were gathered using the USP Apparatus I, III and IV in presence of biorelevant media, simulating both fasted and fed state conditions. A key outcome from the current study was to establish an in vitro-in vivo correlation (IVIVC) between (i) the dissolution profiles obtained from the USP I, III and IV methods and (ii) the fraction absorbed of drug as deconvoluted from the plasma concentration-time profile of the drug. When linking the fraction dissolved as measured in the USP IV model, a Level A IVIVC was established. Moreover, when using the different dissolution profiles as input for PBPK modeling, it was also observed that predictions for plasma Cmax and AUC were most accurate for USP IV compared to the other models (based on predicted versus observed ratios). Furthermore, the PBPK model has the utility to extract the predicted concentrations at the level of the colon which can be of utmost interest when working with specific in vitro assays.

Antiretroviral adherence among people living with HIV during the postpartum period: a retrospective cohort study at a PMTCT reference center in Rio de Janeiro before and during the COVID-19 pandemic.

Despite success in achieving viral suppression during pregnancy in people living with HIV (PLWH), postpartum adherence remains a challenge. We aimed to describe rates of adherence at a Prevention of Mother-to-Child HIV Transmission (PMTCT) Center before and during the COVID-19 pandemic. This study was conducted from a cohort of PLWH who received prenatal care and were virally suppressed near delivery. We tracked combined antiretroviral therapy (cART) pickups for 12 months and HIV viral load (VL) from 2 to 12 months after delivery. We defined flexible adherence as a monthly pickup of cART and strict adherence as also having VL < 200 copies/mL and at least one maternal HIV VL between two and twelve months postpartum. Pre-pandemic was defined as delivery from March 2017-February 2019 and pandemic as March 2020-February 2022. During the study, 1119 PLWH were followed, and 965 (86%) were suppressed near delivery. There were 511 pre-pandemic and 290 pandemic participants. Adherence rates were 66/511 (13%) and 38/290 (13%), respectively. During the pandemic, more participants conceived using cART and were undetectable at the start of prenatal care; nevertheless, postpartum adherence was no better than pre-pandemic underscoring the need to improve strategies for adherence specific to this subset of PLWH in the postpartum period.

IgG from Dermatophagoides pteronyssinus (Der p)-atopic individuals modulates non-atopic thymic B cell phenotype (alfa-4/beta-7) and cytokine production (IFN-γ, IL-9, and IL-10) with direct membrane interaction.

Studies about thymic B cells are scarce in the literature, but it was suggested that they can exert modulatory and regulatory functions on the immune system. Thymic B cells can play some role in regulating the most frequent allergic background worldwide, the atopy induced by the mite Dermatophagoides pteronyssinus (Der p). Here, we aimed to evaluate if the polyclonal IgG repertoire produced by Der p-atopic individuals can influence the homing and cytokine profile of human thymic B derived from non-atopic children aged less than seven days. With this purpose, we produced polyclonal IgG formulations and cultivated human thymocytes in their presence. We also assessed IgG subclasses and the direct interaction of IgG with thymic B cell membranes. Our results could demonstrate that Der p-atopic IgG could not reduce the expression of α4ß7 homing molecule as observed in response to the other IgG formulations and could reduce the frequency of IFN-γ- and IL-9-producing thymic B cells compared to the mock condition. Der p-atopic IgG could also induce thymic IL-10-producing B cells compared to control conditions. The IgG derived from Der p-atopic individuals failed to diminish the population of IL-13-producing thymic B cells, unlike the reduction observed with other IgG formulations when compared to the mock condition. All IgG formulations had similar levels of IgG subclasses and directly interacted with thymic B cell membranes. Finally, we performed experiments using peripheral non-atopic B cells where IgG effects were not observed. In conclusion, our observation demonstrates that IgG induced in allergic individuals can modulate non-atopic thymic B cells, potentially generating thymic B cells prone to allergy development, which seems to not occur in mature B cells.

Aplicabilidade da ferramenta de triagem nutricional royal freehospital-nutritional prioritizing tool em pacientes cirróticos e sua associação com estado nutricional / Applicability of the nutritional screening tool royal free hospital-nutritionalprioritizing tool in cirrhotic patients and its association with nutritional status

Introdução: A doença hepática crônica é definida como a deterioração progressiva das funções hepáticas por mais de seis meses. Além disso, é considerada como um contínuo processo de inflamação, destruição e regeneração do parênquima hepático, podendo evoluir para fibrose e cirrose. A desnutrição no paciente cirrótico é considerada uma complicação grave, e é frequentemente associada à progressão da insuficiência hepática e outras complicações. Pacientes com doença hepática avançada, devem se submeter a uma rápida triagem nutricional, visto que esses indivíduos apresentam piores prognósticos associados à desnutrição. Objetivo: Avaliar a aplicabilidade da RFH-NPT como ferramenta de triagem nutricional em pacientes diagnosticados com cirrose hepática. Método: Trata-se de um estudo transversal, realizado com pacientes maiores de 18 anos, de ambos os sexos com diagnóstico de doença hepática crônica. A coleta de dados foi realizada por meio de um questionário pré-estruturado formulado a partir de informações socioeconômicas e de estilo de vida. A avaliação nutricional foi realizada através de parâmetros antropométricos, para avaliar o risco nutricional foi utilizada a ferramenta RFH-NPT. A avaliação do padrão de consumo alimentar foi realizada por meio do questionário de frequência alimentar semiquantitativo. Resultados: Foram avaliados 53 pacientes, 64,2% do sexo masculino, predominantemente idosos (56,6%), com ensino fundamental (56,9%). Quanto aos parâmetros antropométricos, verificou-se que o IMC se mostra insensível para identificar baixo peso em pacientes cirróticos (13,2%). Com relação a RFH-NPT, verificou-se que o risco nutricional esteve presente em 54,7% dos avaliados. Conclusão: A aplicabilidade da ferramenta de triagem demonstrou ser apropriada para detectar o risco de desnutrição, tendo em vista que esta triagem detectou maior prevalência de pacientes em risco nutricional...(AU)

ntroduction: Chronic liver disease is defined as the pro-gressive deterioration of liver functions for more than six months. Furthermore, it is considered a continuous process ofinflammation, destruction and regeneration of the liverparenchyma, which can progress to fibrosis and cirrhosis.Malnutrition in cirrhotic patients is considered a serious compli-cation, and is often associated with the progression of liver fail-ure and other complications. Patients with advanced liver dis-ease should undergo rapid nutritional screening, as theseindividuals have worse prognoses associated with malnutrition. Objective: To evaluate the applicability of RFH-NPT as a nu-tritional screening tool in patients diagnosed with liver cirrhosis. Method: This is a cross-sectional study, carried out withpatients over 18 years of age, of both sexes, diagnosed withchronic liver disease. Data collection was carried out using apre-structured questionnaire formulated based on socioeco-nomic and lifestyle information. Nutritional assessment wascarried out using anthropometric parameters; the RFH-NPTtool was used to assess nutritional risk. The assessment offood consumption patterns was carried out using a semi-quantitative food frequency questionnaire. Results: 53 patients were evaluated, 64.2% male, pre-dominantly elderly (56.6%), with primary education (56.9%).Regarding anthropometric parameters, it was found that BMIis insensitive to identify low weight in cirrhotic patients(13.2%). Regarding RFH-NPT, it was found that nutritionalrisk was present in 54.7% of those evaluated. Conclusion: The applicability of the screening tool provedto be appropriate for detecting the risk of malnutrition, con-sidering that this screening detected a higher prevalence ofpatients at nutritional risk, enabling early nutritional intervention and preventing future complications.(AU)

One-Pot Synthesis and Surfactant Removal from MCM-41 Using Microwave Irradiation.

This research pioneers the application of microwave irradiation as an innovative strategy for one-pot synthesis and surfactant elimination (cetyltrimethylammonium bromide-CTAB) from MCM-41, introducing a rapid and efficient methodology. MCM-41 silica is widely utilized in various applications due to its unique textural and structural properties. Nonetheless, the presence of residual surfactants after synthesis poses a challenge to its effective application. MCM-41 synthesis, conducted in a microwave reactor at 60 °C, provided a result within 0.5 to 1 h. Comprehensive analyses of structural, chemical, morphological, and surface characteristics were undertaken, with a focus on the impact of synthesis time on these properties. Surfactant extraction involved the use of ethanol as a solvent at 120 °C for 6 min within the microwave reactor. The acquired particles, coupled with the properties of textural and structural features, affirmed the efficacy of the synthesis process, resulting in the synthesis of MCM-41 within 36 min. This study presents the first instance of one-pot synthesis and surfactant removal from MCM-41 using a microwave reactor. The proposed method not only addresses the surfactant removal challenge, but also substantially accelerates the synthesis process, thereby enhancing the potential for MCM-41's application in diverse fields.

Gamma-delta T cells suppress microbial metabolites that activate striatal neurons and induce repetitive/compulsive behavior in mice.

Intestinal γδ T cells play an important role in shaping the gut microbiota, which is critical not only for maintaining intestinal homeostasis but also for controlling brain function and behavior. Here, we found that mice deficient for γδ T cells (γδ-/-) developed an abnormal pattern of repetitive/compulsive (R/C) behavior, which was dependent on the gut microbiota. Colonization of WT mice with γδ-/- microbiota induced R/C behavior whereas colonization of γδ-/- mice with WT microbiota abolished the R/C behavior. Moreover, γδ-/- mice had elevated levels of the microbial metabolite 3-phenylpropanoic acid in their cecum, which is a precursor to hippurate (HIP), a metabolite we found to be elevated in the CSF. HIP reaches the striatum and activates dopamine type 1 (D1R)-expressing neurons, leading to R/C behavior. Altogether, these data suggest that intestinal γδ T cells shape the gut microbiota and their metabolites and prevent dysfunctions of the striatum associated with behavior modulation.

Effect of treatment with phosphate, casein phosphopeptide and fluoride on the remineralization: in vitro study

Abstract This study aimed to evaluate in vitro the effect protocols and anticaries agents containing casein amorphous calcium fluoride phosphopeptide-phosphate (CPP-ACPF, MI Paste Plus), sodium trimetaphosphate (TMP) and fluoride (F), in remineralization of caries lesions. Bovine enamel blocks with initial caries lesions were divided into groups (n = 12): 1) Toothpaste without F-TMP-MI Plus (Placebo); 2) Toothpaste 1100 ppm F (1100F), 3) 1100F + MI Paste Plus (1100F-MI Paste Plus), 4) Toothpaste with 1100F + Neutral gel with 4,500 ppm F + 5%TMP (1100F + Gel TMP) and 5) Toothpaste with 1100F + Neutral gel with 9,000 ppm F (1100F + Gel F). For the 4 and 5 groups the gel was applied only once for 1 minute, initially to the study. For the 3 group, after treatment with 1100F, MI Paste Plus was applied 2x/day for 3 minute. After pH cycling, the percentage of surface hardness recovery (%SHR); integrated loss of subsurface hardness (ΔKHN); profile and depth of the subsuperficial lesion (PLM); concentrations of F, calcium (Ca) and phosphorus (P) in enamel was determined. The data were analyzed by ANOVA (1-criterion) and Student-Newman-Keuls test (p < 0.001). Treatment with 1100F alone led to ~ 28% higher remineralization when compared to treatment with 1100F associated with MI Paste Plus (p < 0.001). The 1100F and 1100F + Gel F groups showed similar values for %SHR (p = 0.150). 1100F + Gel TMP treatment also remineralized the enamel surface by ~ 30% and 20% when compared to the 1100F + Gel F and 1100F groups (p < 0.001). The lower lesion depth (ΔKHN) was observed for the 1100F + Gel TMP group (p < 0.001), where it was 54% and 44% lower in comparison to the 1100F and 1100F + Gel F groups (p < 0.001). Polarized light microscopy photomicrographs showed subsurface lesions in all groups, but these lesions were present to a lower extent in the 1100F + Gel TMP group (p < 0.001). Treatment with 1100F + Gel TMP promoted an increase in the concentration of Ca in the enamel by ~ 57% and ~ 26% when compared to the 1100F and 1100F + MI Paste Plus groups (p < 0.001), respectively. There were no significant differences between the 1100F, 1100F + MI Paste Plus and 1100F + Gel F groups (p > 0.001). Similar values of P in the enamel were observed in the 1100F, 1100F + MI Paste Plus and 1100F + Gel F groups (p > 0.001), except for the 1100F + Gel TMP group, which presented a high concentration (p < 0.001). We conclude that the 1100F+TMP gel treatment/protocol led to a significant increased remineralization when compared to the other treatments/protocols and may be a promising strategy for patients with early caries lesions.

Trend and spatial pattern of intimate partner rape notifications against women in Northeast Brazil (2013-2022) / Tendência e padrão espacial das notificações de estupro por parceiro íntimo contra mulheres no Nordeste do Brasil (2013-2022)

ABSTRACT Objective: To analyze the trend and spatial pattern of intimate partner rape reports against women in Northeast Brazil. Methods: Ecological time-series study and spatial analysis with secondary data from the Notifiable Diseases Information System between 2013 and 2022. Gross rape rates were calculated by type of intimate partner and by age group of the victim. Prais-Winsten regression was used to calculate the trend, and the global and local Moran indices were used for spatial analysis. Results: A total of 5,542 cases of intimate partner rape were reported. Spousal rates ranged from 0.34/100,000 women in 2013 to 0.51/100,000 in 2017, with greater increases between 2018 (1.04/100 thousand) and 2022 (1.28/100 thousand). There was an upward trend in the Northeast as a whole (APC=19.47; 95%CI 15.88-23.22) and in almost all states, except Paraíba and Sergipe. Cases perpetrated by boyfriends (APC=23.90; 95%CI 12.80-36.09) and among women aged 15 to 19 years (APC=22.63; 95%CI 4.18-44.35) showed the highest annual variation. A concentration of high rates was observed in several municipalities in the northwest of Ceará and southeast of Pernambuco. Conclusion: The trend in intimate partner rape rates against women increased in the Northeast, especially among younger women and by boyfriends, with a greater agglomeration of notifications in Ceará and Pernambuco.

RESUMO Objetivo: Analisar a tendência e o padrão espacial das notificações de estupro por parceiro íntimo contra mulheres no Nordeste do Brasil. Métodos: Estudo ecológico de série temporal e análise espacial com dados secundários do Sistema de Informação de Agravos de Notificação (SINAN) entre 2013 e 2022. Foram calculadas taxas brutas de estupro por tipo de parceiro íntimo e por faixa etária da vítima. Para o cálculo de tendência, utilizou-se a regressão de Prais-Winsten e, para a análise espacial, adotou-se o índice global e local de Moran. Resultados: Foram notificados 5.542 casos de estupro pelo parceiro íntimo. As taxas perpetradas pelo cônjuge variaram de 0,34/100 mil mulheres em 2013 para 0,51/100 mil em 2017, com maiores elevações entre 2018 (1,04/100 mil) e 2022 (1,28/100 mil). Houve tendência de aumento no Nordeste como um todo (VPA=19,47; IC95% 15,88-23,22) e em quase todos os estados, exceto Paraíba e Sergipe. Os casos perpetrados por namorados (VPA=23,90; IC95% 12,80-36,09) e entre mulheres de 15 a 19 anos (VPA=22,63; IC95% 4,18-44,35) exibiram maior variação anual. Observou-se concentração de altas taxas em diversos municípios no noroeste do Ceará e no sudeste de Pernambuco. Conclusão: A tendência das taxas de estupro contra mulheres perpetrado pelo parceiro íntimo aumentou no Nordeste, principalmente entre as mais jovens e por namorados, tendo maior aglomerado de notificações no Ceará e em Pernambuco.

Evaluation of Comt2, Comt3, Cyp1b1, and Esr1 gene polymorphisms as risk factor for endometrial polyp.

The aim of this study is to evaluate COMT2, COMT3, CYP1B1, and ESR1 gene polymorphisms and occurrence of endometrial polyps. In addition, we intended to evaluate the clinical and epidemiological features of patients with and without the presence of the disease, characterizing the possible risk factors. A cross-sectional study was performed, with a total of 309 women, including 236 in the group of women with endometrial polyp confirmed by hysteroscopy and anatomical pathological examination and 73 in the group of people with diagnostic hysteroscopy without abnormal findings from the macroscopic point of view. Polymorphisms of four genes were studied: COMT2 (rs4680), COMT3 (rs5031015), CYP1B1 (rs1056836), and ESR1 (rs2234693). Polymorphism genotyping was determined using real-time polymerase chain reaction. Considering the results, no differences were identified between the two groups with respect to age, body mass index, diabetes, dyslipidemia, or smoking. The group of women without endometrial polyps showed higher use of hormone therapy than the other group (16.4 percent versus 3.8 percent, p < .001). The COMT2, COMT3, CYP1B1, and ESR1 genes exhibited no significant difference for the occurrence of endometrial polyp between the two groups. The research concluded that no correlation was identified between the genetic polymorphisms evaluated and the presence of endometrial polyps.

Nasal administration of anti-CD3 monoclonal antibody ameliorates disease in a mouse model of Alzheimer's disease.

Emerging evidence suggests that dysregulation of neuroinflammation, particularly that orchestrated by microglia, plays a significant role in the pathogenesis of Alzheimer's disease (AD). Danger signals including dead neurons, dystrophic axons, phosphorylated tau, and amyloid plaques alter the functional phenotype of microglia from a homeostatic (M0) to a neurodegenerative or disease-associated phenotype, which in turn drives neuroinflammation and promotes disease. Thus, therapies that target microglia activation constitute a unique approach for treating AD. Here, we report that nasally administered anti-CD3 monoclonal antibody in the 3xTg AD mouse model reduced microglial activation and improved cognition independent of amyloid beta deposition. In addition, gene expression analysis demonstrated decreased oxidative stress, increased axogenesis and synaptic organization, and metabolic changes in the hippocampus and cortex of nasal anti-CD3 treated animals. The beneficial effect of nasal anti-CD3 was associated with the accumulation of T cells in the brain where they were in close contact with microglial cells. Taken together, our findings identify nasal anti-CD3 as a unique form of immunotherapy to treat Alzheimer's disease independent of amyloid beta targeting.

Microwave-Assisted Synthesis of Zeolite A from Metakaolinite for CO2 Adsorption.

The global demand for energy and industrial growth has generated an exponential use of fossil fuels in recent years. It is well known that carbon dioxide (CO2) is mainly produced, but not only from fuels, which has a negative impact on the environment, such as the increasing emission of greenhouse gases. Thus, thinking about reducing this problem, this study analyzes microwave irradiation as an alternative to conventional heating to optimize zeolite A synthesis conditions for CO2 capture. Synthesis reaction parameters such as different temperatures (60-150 °C) and different time durations (1-6 h) were evaluated. The CO2 adsorption capacity was evaluated by CO2 adsorption-desorption isotherms at 25 °C and atmospheric pressure. The results showed that the synthesis of zeolite A by microwave irradiation was successfully obtained from natural kaolinite (via metakaolinization), reducing both temperature and time. Adsorption isotherms show that the most promising adsorbent for CO2 capture is a zeolite synthesized at 100 °C for 4 h, which reached an adsorption capacity of 2.2 mmol/g.

Effect of Biologics on the Need for Procedural Interventions, Systemic Medications, and Healthcare Utilization in Patients with Hidradenitis Suppurativa: Real-World Data from the UNITE Registry.

INTRODUCTION: Management of hidradenitis suppurativa (HS) often requires a combined medical/procedural approach. Biologics are frequently reserved for severe cases after irreversible tissue damage has occurred. We evaluated the association between consistent biologic use and the need for procedural interventions, systemic medications, and healthcare utilization. METHODS: UNITE, a 4-year, global, prospective, observational, HS disease registry, documented the natural history, diagnostic/treatment patterns, and clinical outcomes of HS. Patients aged 12 years or more, with active HS were enrolled between October 2013 and December 2015 and evaluated every 6 months for 48 months at 73 sites across 12 countries (data cutoff December 2019). Proportions of patients requiring different HS procedures, systemic medications, and healthcare utilization were assessed during the 6-month periods before, during, and after biologic initiation for 12 weeks or more (i.e., consistent use). RESULTS: There were 63 instances of initiation of consistent biologic use (adalimumab [81%], infliximab [16%], and ustekinumab [3%]) in 57 patients. Patients' mean age was 40 years, 58% were female, and 53%/47% had Hurley stage II/III disease, respectively. Fewer patients required surgical/procedural interventions and systemic medications for the 6-month period during/6-month period after biologic initiation versus the 6-month period before biologic initiation, including intralesional corticosteroid injections (22%/14% vs 24%), incision and drainage (I&D) by physician (10%/10% vs 17%), I&D by patient (10%/10% vs 14%), surgical excision (8%/10% vs 11%), deroofing (5%/2% vs 5%), systemic antibiotics (43%/41% vs 54%), and systemic immunosuppressants (10%/6% vs 13%). Fewer patients required hospital admission for HS (17%/13% vs 21%) or emergency department visits for HS (8%/8% vs 16%) during the 6-month periods in which consistent biologics use started and continued versus the 6-month period before consistent biologic use. CONCLUSION: Following initiation of consistent biologic use (12 weeks or more), fewer patients required acute procedural interventions, systemic medications, and healthcare utilization, supporting the importance of early biologic initiation.

Fall-Related Hospitalizations in Elderly People: Temporal Trend and Spatial Distribution in Brazil.

This study aims to identify the temporal variation and the spatial dependence structure of the hospitalization rate for falls in the elderly residing in Brazil in the period between 2010 and 2021. This ecological study employs secondary data from the Brazilian Ministry of Health about the fall-related hospitalization of people aged 60 years old and over. A time-series analysis was carried out, employing the joinpoint model. For the spatial analysis, the Moran autocorrelation technique was employed. In Brazil, between 2010 and 2021, there were 1,270,341 hospitalizations for falls recorded among the elderly in the Brazilian Hospitalization System. There was a continuous upward trend between 2010 and 2019 for all age groups, female and male, and all Brazilian regions. The trend stabilized between 2019 to 2021. The North and Northeast regions had faster upward trends among all Brazilian regions, and there was also a faster upward trend among women compared to men. A high-high pattern in hospitalization incidence was noticed from 2011 to 2019 in the states of São Paulo, Minhas Gerais, Paraná, and Mato Grosso do Sul. The results of this study provide subsidies for Brazilian health authorities to implement more efficient public policies to improve the quality of life of elderly people.

Ambulatory and hospitalized patients with suspected and confirmed mpox: an observational cohort study from Brazil.

Background: By October 30, 2022, 76,871 cases of mpox were reported worldwide, with 20,614 cases in Latin America. This study reports characteristics of a case series of suspected and confirmed mpox cases at a referral infectious diseases center in Rio de Janeiro, Brazil. Methods: This was a single-center, prospective, observational cohort study that enrolled all patients with suspected mpox between June 12 and August 19, 2022. Mpox was confirmed by a PCR test. We compared characteristics of confirmed and non-confirmed cases, and among confirmed cases according to HIV status using distribution tests. Kernel estimation was used for exploratory spatial analysis. Findings: Of 342 individuals with suspected mpox, 208 (60.8%) were confirmed cases. Compared to non-confirmed cases, confirmed cases were more frequent among individuals aged 30-39 years, cisgender men (96.2% vs. 66.4%; p < 0.0001), reporting recent sexual intercourse (95.0% vs. 69.4%; p < 0.0001) and using PrEP (31.6% vs. 10.1%; p < 0.0001). HIV (53.2% vs. 20.2%; p < 0.0001), HCV (9.8% vs. 1.1%; p = 0.0046), syphilis (21.2% vs. 16.3%; p = 0.43) and other STIs (33.0% vs. 21.6%; p = 0.042) were more frequent among confirmed mpox cases. Confirmed cases presented more genital (77.3% vs. 39.8%; p < 0.0001) and anal lesions (33.1% vs. 11.5%; p < 0.0001), proctitis (37.1% vs. 13.3%; p < 0.0001) and systemic signs and symptoms (83.2% vs. 64.5%; p = 0.0003) than non-confirmed cases. Compared to confirmed mpox HIV-negative, HIV-positive individuals were older, had more HCV coinfection (15.2% vs. 3.7%; p = 0.011), anal lesions (45.7% vs. 20.5%; p < 0.001) and clinical features of proctitis (45.2% vs. 29.3%; p = 0.058). Interpretation: Mpox transmission in Rio de Janeiro, Brazil, rapidly evolved into a local epidemic, with sexual contact playing a crucial role in its dynamics and high rates of coinfections with other STI. Preventive measures must address stigma and social vulnerabilities. Funding: Instituto Nacional de Infectologia Evandro Chagas, Fundação Oswaldo Cruz (INI-Fiocruz).

Gamma-delta T cells modulate the microbiota and fecal micro-RNAs to maintain mucosal tolerance.

BACKGROUND: Gamma-delta (γδ) T cells are a major cell population in the intestinal mucosa and are key mediators of mucosal tolerance and microbiota composition. Little is known about the mechanisms by which intestinal γδ T cells interact with the gut microbiota to maintain tolerance. RESULTS: We found that antibiotic treatment impaired oral tolerance and depleted intestinal γδ T cells, suggesting that the gut microbiota is necessary to maintain γδ T cells. We also found that mice deficient for γδ T cells (γδ-/-) had an altered microbiota composition that led to small intestine (SI) immune dysregulation and impaired tolerance. Accordingly, colonizing WT mice with γδ-/- microbiota resulted in SI immune dysregulation and loss of tolerance whereas colonizing γδ-/- mice with WT microbiota normalized mucosal immune responses and restored mucosal tolerance. Moreover, we found that SI γδ T cells shaped the gut microbiota and regulated intestinal homeostasis by secreting the fecal micro-RNA let-7f. Importantly, oral administration of let-7f to γδ-/- mice rescued mucosal tolerance by promoting the growth of the γδ-/--microbiota-depleted microbe Ruminococcus gnavus. CONCLUSIONS: Taken together, we demonstrate that γδ T cell-selected microbiota is necessary and sufficient to promote mucosal tolerance, is mediated in part by γδ T cell secretion of fecal micro-RNAs, and is mechanistically linked to restoration of mucosal immune responses. Video Abstract.

Spatial distribution and temporal trends of AIDS in Brazil and regions between 2005 and 2020.

OBJECTIVE: To analyze the spatial distribution and the temporal trend of the AIDS incidence rate in Brazil from 2005 to 2020. METHODS: This is an ecological, temporal, and spatial study on AIDS cases in Brazil. Data from the Notifiable Diseases Information System were stratified by year of diagnosis, region of the country/municipalities of residence, and age group (over 13 years). Incidence rates were calculated for temporal estimation using the Joinpoint model, as well as Spatial Empirical Bayes (SEB) for spatial distribution, using the Kernel density estimator. RESULTS: The incidence rate in Brazil, in 2020, was 17.69 cases per 100 thousand inhabitants. The general trend (2005-2020) was decrease in Brazil (Annual Percent Change - APC=-2.0%), in the Southeast (APC=-4.4%) and South (APC=-3.0%) regions. The North (APC=2.3%) showed an increase trend, whereas the Southeast and Midwest regions were stationary (p>0.05). Brazil, Southeast, South, and Midwest regions showed a decrease trend in most age groups. The Northeast and North regions showed an increase in the age groups of 13-29 years and 13-24 years, respectively. The Kernel estimator showed clusters with SEB above 30/10 thousand inhabitants in the states of Paraíba, Sergipe, Alagoas, Pernambuco, São Paulo, Minas Gerais, Pará, Rio Grande do Sul, and Santa Catarina. CONCLUSION: Brazil, the Southeast, and South regions showed a decrease in the incidence rate, whereas the North region increased and the Northeast and Midwest regions were stationary. The Southeast, South, and Northeast regions presented the largest clusters of SEB.

Desafios e possibilidades de coparticipação da puérpera e do acompanhante no cuidado seguro / Challenges and possibilities of co-participation of the puerperal woman and the companion in safe care / Retos y posibilidades de la coparticipación de la puérpera y el acompañante para el cuidado seguro

Objetivo: identificar os desafios e as possibilidades de coparticipação das puérperas e dos acompanhantes no cuidado seguro na maternidade. Materiais e Métodos: estudo qualitativo realizado com 23 puérperas e 11 acompanhantes em uma maternidade de Belo Horizonte, entre março e julho de 2019. Os dados foram coletados por meio de entrevistas com roteiros semiestruturados e submetidos à análise de conteúdo temática, segundo o referencial teórico da segurança do paciente. Resultados: emergiram duas categorias: contribuição da puérpera e do acompanhante para o cuidado seguro; e desafios e contribuições para o alcance da coparticipação das puérperas e dos acompanhantes na segurança do paciente. Conclusões: acompanhantes e puérperas se reconhecem como coparticipantes na promoção da segurança do paciente, porém foi observada a falta de conhecimento e estímulo em relação à participação desses atores. Salienta-se a importância de utilizar tecnologias educativas para incluí-los como parceiros ativos na segurança do paciente.(AU)

Objective: to identify the challenges and possibilities of co-participation of puerperal women and companions in safe maternity care. Materials and Methods: qualitative study carried out with 23 mothers and 11 companions in a maternity hospital in Belo Horizonte, between March and July 2019. Data were collected through interviews with semi-structured scripts and submitted to thematic content analysis, according to the theoretical framework of patient safety. Results: two categories emerged: contribution of the puerperal woman and the companion for safe care; and challenges and contributions to achieving co-participation of puerperal women and companions in patient safety. Conclusions: companions and puerperal women recognize themselves as co-participants in promoting patient safety, however, a lack of knowledge and encouragement regarding the participation of these actors was observed. The importance of using educational technologies to include them as active partners in patient safety is highlighted.(AU)

Objetivo: identificar los desafíos y posibilidades de la coparticipación de puérperas y acompañantes en la atención a la maternidad segura. Materiales y Métodos: estudio cualitativo realizado con 23 puérperas y 11 acompañantes en una maternidad de Belo Horizonte, entre marzo y julio de 2019. Los datos fueron recogidos a través de entrevistas con guiones semiestructurados y sometidos a análisis de contenido temático de acuerdo con el marco teórico de la seguridad del paciente. Resultados: surgieron dos categorías: Contribución de la puérpera y del acompañante para el cuidado seguro; Desafíos y aportes para lograr la coparticipación de las puérperas y acompañantes en la seguridad del paciente. Conclusiones: los acompañantes y puérperas se reconocen como copartícipes en la promoción de la seguridad del paciente, pero falta conocimiento y estímulo en cuanto a la participación de estos actores. Se destaca la importancia de utilizar tecnologías educativas para incluirlos como socios activos en la seguridad del paciente.(AU)