The efficacy of Platelet and Leukocyte Rich Fibrin (L-PRF) in the healing process and bone repair in oral and maxillofacial surgeries: a systematic review.

INTRODUCTION: The search to optimize the healing and bone repair processes in oral and maxillofacial surgeries reflects the constant evolution in clinical practice, driven by the demand for increasingly satisfactory results and the need to minimize postoperative complications. OBJECTIVE: To evaluate the efficacy of Platelet and Leukocyte Rich Fibrin (L-PRF) in the healing and bone repair process in oral and maxillofacial surgeries. MATERIALS AND METHODS: The systematic review protocol for this study included the definition of the research question, the domain of the study, the databases searched, the search strategy, the inclusion and exclusion criteria, the types of studies to be included, the measures of effect, the methods for screening, data extraction and analysis, and the approach to data synthesis. Systematic literature searches were carried out on Cochrane databases, Web of Science, PubMed, ScienceDirect, Embase and Google Scholar. RESULTS: The strategic search in the databases identified 1,159 studies. After removing the duplicates with the Rayyan© software, 946 articles remained. Of these, 30 met the inclusion criteria. After careful evaluation based on the inclusion and exclusion criteria, 8 studies were considered highly relevant and included in the systematic review. CONCLUSION: Platelet and Leukocyte Rich Fibrin (L-PRF) has a positive effect on the healing process and bone repair in oral and maxillofacial surgeries.

Investigating relationships between the host genome, rumen microbiome, and dairy cow feed efficiency using mediation analysis with structural equation modeling.

The rumen microbiome is crucial for converting feed into absorbable nutrients used for milk synthesis, and the efficiency of this process directly impacts the profitability and sustainability of the dairy industry. Recent studies have found that the rumen microbial composition explains part of the variation in feed efficiency traits, including dry matter intake, milk energy, and residual feed intake. The main goal of this study was to reveal relationships between the host genome, rumen microbiome, and dairy cow feed efficiency using structural equation models. Our specific objectives were to (i) infer the mediation effects of the rumen microbiome on feed efficiency traits, (ii) estimate the direct and total heritability of feed efficiency traits, and (iii) calculate the direct and total breeding values of feed efficiency traits. Data consisted of dry matter intake, milk energy, and residual feed intake records, SNP genotype data, and 16S rRNA rumen microbial abundances from 448 mid-lactation Holstein cows from 2 research farms. We implemented structural equation models such that the host genome directly affects the phenotype (GP → P) and the rumen microbiome (GM → P), while the microbiome affects the phenotype (M → P), partially mediating the effect of the host genome on the phenotype (G → M → P). We found that 7 to 30% of microbes within the rumen microbial community had structural coefficients different from zero. We classified these microbes into 3 groups that could have different uses in dairy farming. Microbes with heritability <0.10 but significant causal effects on feed efficiency are attractive for external interventions. On the other hand, 2 groups of microbes with heritability ≥0.10, significant causal effects, and genetic covariances and causal effects with the same or opposite sign to feed efficiency are attractive for selective breeding, improving or decreasing the trait heritability and response to selection, respectively. In general, the inclusion of the different microbes in genomic models tends to decrease the trait heritability rather than increase it, ranging from -15% to +5%, depending on the microbial group and phenotypic trait. Our findings provide more understanding to target rumen microbes that can be manipulated, either through selection or management interventions, to improve feed efficiency traits.

Effect of double-premilking teat disinfection protocols on bacterial counts on teat skin of cows and milker gloves in a free-stall-housed dairy herd.

This research communication addresses the hypothesis that double premilking teat disinfection (DD) is more effective in reducing soiling and bacterial count on the cows' teat skin and milkers' gloves than conventional disinfection (CONV). The design was a 3 × 3 Latin square (three groups of cows and three treatments) with conventional teat disinfection (CONV, lactic acid application after forestripping), double teat disinfection using the same disinfectant (DD1D, lactic acid application before and after forestripping), and double teat disinfection using two different disinfectants (DD2D, application of lactic acid before and chlorine-based disinfectant after forestripping). All groups were assigned for six days for each treatment, and the evaluations and samples were collected on the last day, before and after treatment. We evaluated the teat cleanliness score (TCS), count of Gram-negative bacteria (coliforms and noncoliforms), Staphylococcus spp., Streptococcus spp., and total bacterial count (TBC) on the cows' teats and TBC on the milkers' gloves. TCS after premilking was lower in DD than CONV treatment. The reduction of Staphylococcus spp. count was greater in the DD treatment and tended to be higher in the DD2D. The TBC reduction on the cows' teats was greater in the DD treatments. The TBC on the milkers' gloves was lower for DD before and after premilking. In conclusion, DD can be an alternative for reducing some bacterial populations on cow teats and preventing the transmission of microorganisms between cows via the milkers' hands.

Progesterone profiles in postpartum dairy cows with inflammatory disorders.

The objective of this prospective cohort study was to determine if progesterone (P4) profiles differed between dairy cows with or without inflammatory disorders early postpartum. A total of 708 cows from 2 commercial herds were enrolled 3 wk before parturition and examined for clinical health disorders (retained placenta, metritis, displaced abomasum, mastitis, or lameness) until 5 wk postpartum. Serum haptoglobin (Hp) was measured in blood at 2 and 6 (±2) DIM, metritis was assessed at 4, 8, 11, and 15 DIM, and purulent vaginal discharge and endometritis (≥6% polymorphonuclear cells in endometrial cytology sampled by cytobrush) were assessed at 35 ± 3 DIM. As Hp ≥0.8 g/L or endometritis were associated with ovarian dysfunction in previous studies, cows with serum Hp ≥0.8 g/L at either time point and endometritis, regardless of clinical disease, were classified as the cohort with inflammatory disorders (INFLAM; n = 139). Clinically healthy cows without difficult calving or twin birth, with Hp <0.8 g/L at both sampling times, without endometritis, and BCS ≥3.00 (1 to 5 scale) were classified as healthy (n = 133). Cows with only one of the 2 conditions (high Hp or endometritis) were excluded. Cohorts had serum P4 measured twice weekly from 35 to 70 (±3) DIM, and the first detected luteal phase (LP) during the sampling period was defined as the interval from onset of luteal activity (P4 increase to ≥1 ng/mL) until decline of P4 to <1 ng/mL. The odds of prolonged LP (≥21 d), average LP length, peak P4, and time to P4 decline (hazard rate) were analyzed using multivariable mixed logistic, linear, or Cox proportional hazard regression models including INFLAM status, parity, sampling day (when applicable), and herd as a random effect considering the covariates of season, milk yield at first DHIA test, and DIM at onset of cyclicity or LP length (when applicable). Cows with INFLAM had greater odds of prolonged LP (LSM ± SEM; 67% vs. 37% ± 7), greater average LP length (17 vs. 15 ± 2 d), lesser P4 at d 4 (4.6 vs. 5.5 ± 0.3 ng/mL) and d 7 (6.0 vs. 7.7 ± 0.3 ng/mL) of the LP, and lesser peak P4 (6.9 vs. 8.2 ± 0.3 ng/mL) during the LP than healthy cows. Status of INFLAM was associated with time to P4 decline in multiparous but not primiparous cows; the LP of INFLAM multiparous cows was less likely to have luteolysis (P4 decline) by d 14 [adjusted hazard ratio (AHR) and 95% CI: 0.54; 0.31 to 0.94] or by d 21 (AHR: 0.32; 0.12 to 0.84) than in healthy multiparous cows. In conclusion, postpartum cows with markers of systemic inflammation at wk 1 and uterine inflammation at wk 5 had altered luteal function (prolonged LP and lower P4 concentrations) before first breeding, which is a possible pathway linking postpartum health disorders and infertility.

Use of platelet- and leukocyte-rich fibrin (L-PRF) as a healing agent in the postoperative period of third molar removal surgeries: a systematic review.

OBJECTIVE: The aim of this study was to analyze the effectiveness of L-PRF as a healing agent in the postoperative period of third molar extraction surgeries, as well as to investigate secondary effects, such as the reduction of pain, edema and other discomforts after the surgical intervention. MATERIALS AND METHODS: The methodology adopted consisted of carrying out a systematic review of the literature, following the model outlined by the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). The inclusion criteria were previously established according to a systematic review protocol approved by the Prospective Register of Systematic Reviews (PROSPERO) under number CRD42023484679. In order to carry out a comprehensive search, a search in five databases was carried out, PubMed, Web of Science, Scopus, Cochrane Library and Embase. RESULTS: The search resulted in the selection of randomized controlled trials that conformed to the established criteria. Two authors independently screened the records and extracted the data. The assessment of bias was conducted according to the guidelines recommended by the Cochrane Collaboration, using version 2 of the Cochrane tool for assessing the risk of bias in randomized trials (RoB 2). CONCLUSION: This study demonstrated that L-PRF stands out by providing direct benefits to healing, vascularization and tissue regeneration. CLINICAL RELEVANCE: L-PRF plays an important role in reducing postoperative pain, edema, the incidence of alveolar osteitis and infections after third molar removal surgery, compared to patients who did not undergo the use of L-PRF.

An artificial intelligence approach of feature engineering and ensemble methods depicts the rumen microbiome contribution to feed efficiency in dairy cows.

Genetic selection has remarkably helped U.S. dairy farms to decrease their carbon footprint by more than doubling milk production per cow over time. Despite the environmental and economic benefits of improved feed and milk production efficiency, there is a critical need to explore phenotypical variance for feed utilization to advance the long-term sustainability of dairy farms. Feed is a major expense in dairy operations, and their enteric fermentation is a major source of greenhouse gases in agriculture. The challenges to expanding the phenotypic database, especially for feed efficiency predictions, and the lack of understanding of its drivers limit its utilization. Herein, we leveraged an artificial intelligence approach with feature engineering and ensemble methods to explore the predictive power of the rumen microbiome for feed and milk production efficiency traits, as rumen microbes play a central role in physiological responses in dairy cows. The novel ensemble method allowed to further identify key microbes linked to the efficiency measures. We used a population of 454 genotyped Holstein cows in the U.S. and Canada with individually measured feed and milk production efficiency phenotypes. The study underscored that the rumen microbiome is a major driver of residual feed intake (RFI), the most robust feed efficiency measure evaluated in the study, accounting for 36% of its variation. Further analyses showed that several alpha-diversity metrics were lower in more feed-efficient cows. For RFI, [Ruminococcus] gauvreauii group was the only genus positively associated with an improved feed efficiency status while seven other taxa were associated with inefficiency. The study also highlights that the rumen microbiome is pivotal for the unexplained variance in milk fat and protein production efficiency. Estimation of the carbon footprint of these cows shows that selection for better RFI could reduce up to 5 kg of diet consumed per cow daily, potentially reducing up to 37.5% of CH4. These findings shed light that the integration of artificial intelligence approaches, microbiology, and ruminant nutrition can be a path to further advance our understanding of the rumen microbiome on nutrient requirements and lactation performance of dairy cows to support the long-term sustainability of the dairy community.

Sow hematological parameters in late pregnancy and an investigation as to whether these parameters are predictors of stillbirths in a Canadian sow herd.

Animal and objective: The objectives of this study were to produce hematological reference intervals for late-pregnancy sows and to assess whether there were associations between sow hematological end points and the number of stillborn pigs. Procedure: Whole blood was collected from 272 healthy pregnant sows ~1 wk before farrowing, and complete blood (cell) counts and hemoglobin determinations were obtained. Sows were monitored during farrowing, and litter characteristics, including number of stillborn piglets, were recorded. Results and conclusion: Values for red blood cells, hemoglobin, mean corpuscular volume, mean corpuscular hemoglobin, mean corpuscular concentration, platelets, and white blood cells were significantly higher in Parity 1 sows compared to older sows. The mean (± SD) litter size was 14.5 ± 3.4 pigs, with 1.5 ± 2.0 stillborn pigs per litter. There was no significant association between any hematological end point (except white blood cell counts) and the likelihood of a stillborn piglet in a litter. There was a relationship between parity and stillbirth (P < 0.05), with higher-parity sows being more likely than younger sows to produce a stillborn piglet. Although it had been reported that anemic sows were more likely to have stillbirths, perhaps the relatively high mean hemoglobin concentration of sows in this study resulted in the lack of a relationship.

Paramètres hématologiques des truies en fin de gestation et enquête visant à déterminer si ces paramètres sont des prédicteurs de mortinatalités dans un troupeau de truies canadien. Animal et objectif: Les objectifs de cette étude étaient de produire des intervalles de référence hématologiques pour les truies en fin de gestation et d'évaluer s'il existait des associations entre les paramètres hématologiques des truies et le nombre de porcelets mort-nés. Procédure: Du sang total a été collecté auprès de 272 truies gravides en bonne santé environ 1 semaine avant la mise bas, et une numération cellulaire complète et des déterminations d'hémoglobine ont été obtenues. Les truies ont été surveillées pendant la mise bas et les caractéristiques de la portée, y compris le nombre de porcelets mort-nés, ont été enregistrées. Résultats et conclusion: Les valeurs des globules rouges, de l'hémoglobine, du volume corpusculaire moyen, de l'hémoglobine corpusculaire moyenne, de la concentration corpusculaire moyenne, des plaquettes et des globules blancs étaient significativement plus élevées chez les truies de parité 1 que chez les truies plus âgées. La taille moyenne (± ET) des portées était de 14,5 ± 3,4 porcs, avec 1,5 ± 2,0 porcs mort-nés par portée. Il n'y avait aucune association significative entre un quelconque paramètre hématologique (à l'exception du nombre de globules blancs) et la probabilité d'avoir un porcelet mort-né dans une portée. Il y avait une relation entre la parité et la mortinatalité (P < 0,05), les truies ayant une parité plus élevée étant plus susceptibles que les truies plus jeunes de produire un porcelet mort-né. Bien qu'il ait été rapporté que les truies anémiques étaient plus susceptibles d'avoir des mortinatalités, la concentration moyenne d'hémoglobine relativement élevée des truies dans cette étude a peut-être entraîné l'absence de relation.(Traduit par Dr Serge Messier).

Direct spectrofluorimetric methods as alternatives to compendial ones used for the quality control of biopharmaceuticals: development, validation and application

Abstract A simple, rapid, precise, accurate and sustainable spectrofluorimetric method (SFM) was developed, validated and applied for the determination of 4-aminobenzoic acid and aromatic amino acids (phenylalanine, tryptophan and tyrosine). These compounds are used in biopharmaceutical formulations and therefore must be analyzed by quality control laboratories to meet the criteria established in pharmacopoeias. In general, potentiometric titration (PT) is described in the compendia as the official analytical technique. However, this method showed low sensitivity and selectivity, and moreover was performed with a non-aqueous solvent (acetic acid), which led to higher consumption of reagents and consequently to the formation of residues. Therefore, the SFM was developed in aqueous medium at pH 7.2 using phosphate buffer. It was successfully validated according to the ICH guidelines and showed good linearity range (r>0.999), specificity, accuracy and precision (within and between days) and robustness. The test results were compared between the SFM and PT using raw material samples, while according to the F- and t-tests at 95% confidence level, no statistical difference was found between the methods

Host and rumen microbiome contributions to feed efficiency traits in Holstein cows.

It is now widely accepted that dairy cow performance is influenced by both the host genome and rumen microbiome composition. The contributions of the genome and the microbiome to the phenotypes of interest are quantified by heritability (h2) and microbiability (m2), respectively. However, if the genome and microbiome are included in the model, then the h2 reflects only the contribution of the direct genetic effects quantified as direct heritability (hd2), and the holobiont effect reflects the joint action of the genome and the microbiome, quantified as the holobiability (ho2). The objectives of this study were to estimate h2, hd2,m2, and ho2 for dry matter intake, milk energy, and residual feed intake; and to evaluate the predictive ability of different models, including genome, microbiome, and their interaction. Data consisted of feed efficiency records, SNP genotype data, and 16S rRNA rumen microbial abundances from 448 mid-lactation Holstein cows from 2 research farms. Three kernel models were fit to each trait: one with only the genomic effect (model G), one with the genomic and microbiome effects (model GM), and one with the genomic, microbiome, and interaction effects (model GMO). The model GMO, or holobiont model, showed the best goodness-of-fit. The hd2 estimates were always 10% to 15% lower than h2 estimates for all traits, suggesting a mediated genetic effect through the rumen microbiome, and m2 estimates were moderate for all traits, and up to 26% for milk energy. The ho2 was greater than the sum of hd2 and m2, suggesting that the genome-by-microbiome interaction had a sizable effect on feed efficiency. Kernel models fitting the rumen microbiome (i.e., models GM and GMO) showed larger predictive correlations and smaller prediction bias than the model G. These findings reveal a moderate contribution of the rumen microbiome to feed efficiency traits in lactating Holstein cows and strongly suggest that the rumen microbiome mediates part of the host genetic effect.

Urothelial bladder cancer with cardiac metastasis: Literature review and case report.

INTRODUCTION AND IMPORTANCE: Urothelial bladder cancer can infrequently result in cardiac metastasis, and be usually diagnosed in severe clinical conditions. We report a urothelial bladder cancer with cardiac metastasis and perform a literature review of published cases of transitional cell carcinoma (TCC) of the bladder with cardiac metastasis from 1934 to 2023 published in Pubmed. CASE PRESENTATION: 42-year-old woman with urinnary bladder TCC, underwent radical cystectomy, developing cardiac metastasis after 25 months, cardiac surgery for partial removal of the lesion and using pembrolizumab with the highest reported survival to date. CLINICAL DISCUSSION: After analysis of 20 case reports in the world among our case, men are more affected, tobacco exposure was the most prevalent risk factor, baseline T3 staging was the most common, and right ventricular and myocardium metastases are more prevalent. The most common symptoms were respiratory failure, changes in cardiac auscultation, and loss of weight. Six patients had cardiac tamponade, and the mean of drained fluid was 1040 ml. Immunohistochemical markers, such as CK7 and Calretinin, were decisive in elucidating the diagnosis. The average time between diagnosis of TCC and cardiac metastasis was 48.69 months, and the survival time after diagnosis of cardiac metastasis was 60.69 days. CONCLUSION: Bladder TCC with cardiac metastasis is rare and with a low survival rate after the diagnosis. Patients with more advanced stages of TCC deserve diagnostic suspicion of cardiac metastasis if they progress with previously unreported respiratory and cardiac symptoms.

Influence of gelatin type on physicochemical properties of electrospun nanofibers.

This study explores the fabrication of nanofibers using different types of gelatins, including bovine, porcine, and fish gelatins. The gelatins exhibited distinct molecular weights and apparent viscosity values, leading to different entanglement behavior and nanofiber production. The electrospinning technique produced nanofibers with diameters from 47 to 274 nm. The electrospinning process induced conformational changes, reducing the overall crystallinity of the gelatin samples. However, porcine gelatin nanofibers exhibited enhanced molecular ordering. These findings highlight the potential of different gelatin types to produce nanofibers with distinct physicochemical properties. Overall, this study sheds light on the relationship between gelatin properties, electrospinning process conditions, and the resulting nanofiber characteristics, providing insights for tailored applications in various fields.

How to set up a clinical research center in Brazil, as an example of a middle-income country.

In health care, innovation is a core part of the process that pushes advances forward. Drug and device development follow a step-by-step process from the discovery of a molecule to the final product. While patent filing and preclinical studies are usually performed by academic centers or start-ups, the clinical development is usually performed by pharmaceutical companies. To assess safety, efficacy and fulfil regulatory demands, clinical trials must be performed in sequential Phase I, II, and III stages prior to market access. In this context, clinical research centers have been established around the globe, also outside traditional academic centers, aiming to increase the access for patients to participate in clinical trials and the capacity for clinical development. The increasing number of clinical trial sites across the world, gives pharmaceutical companies, investigators and developers an improved access to properly test the exponentially increasing number of potential medicinal products and treatment approaches in trials in different parts of the world. Historically, Low- and Middle-Income Countries (LMIC) did not significantly take part in clinical trial development. As participation in all steps of clinical research provides earlier access to novel treatment options in LMIC along with creating data on efficacy and toxicity within more diverse populations, it is warranted to improve clinical trial access in LMIC. With the goal to provide input on how to tackle the challenges during the built of a clinical research center, we here describe the experience from setting up a clinical trial unit within a private hospital network in Brasília, Brazil, a Middle-Income country, to provide inspiration, "how to" knowledge and a recipe for those with a similar road ahead in LMIC.

Conduta terapêutica após extravasamento de hipoclorito durante o tratamento endodôntico / Therapeutic management after hypochlorite extravasation during endodontic treatment / Manejo terapéutico después de la extravasación de hipoclorito durante el tratamiento de endodoncia

O hipoclorito de sódio (NaOCl), bastante difundido nos tratamentos endodônticos como uma solução de irrigação eficaz, pode causar complicações graves através da extrusão do mesmo nos tecidos periapicais. O objetivo desse estudo é relatar um caso clínico de extravasamento de hipoclorito durante o tratamento endodôntico, evidenciando a conduta terapêutica. Paciente do sexo feminino, 52 anos, comparece ao setor de urgências e emergência do Hospital da Restauração Governador Paulo Guerra, Recife-PE, cursando com aumento de volume em hemiface direita de aspecto eritematoso, difuso, com sintomatologia dolorosa e sensação de ardência, e necrose tecidual sugestiva de extrusão do NaOCl através dos tecidos periapicais. Foi realizada a limpeza copiosa, desbridamento, drenagem cirúrgica e antibioticoprofilaxia. Observou-se redução do edema e boa cicatrização tecidual intraoral, evidenciando-se que, embora seja rara, é essencial o manejo rápido e preciso diante dessa condição, além da terapêutica medicamentosa a fim de se prevenir infecções secundárias... (AU)

Sodium hypochlorite (NaOCl), widely used in endodontic treatments as an effective irrigation solution, may cause serious complications through extrusion into the periapical tissues. The aim of this study is to report a clinical case of hypochlorite extravasation during endodontic treatment, highlighting the therapeutic approach. A 52-year-old female patient presented at the emergency department of Hospital da Restauração Governador Paulo Guerra, Recife-PE, complaining of a diffuse, erythematous swelling of the right hemiface, with painful symptoms and burning sensation, and tissue necrosis suggestive of extrusion of NaOCl through the periapical tissues. Copious cleaning, surgical debridement and drainage, and antibiotic prophylaxis were performed. A reduction in edema and good intraoral tissue healing were observed. Although rare, rapid and precise management of this condition is essential, as well as drug therapy to prevent secondary infections... (AU)

El hipoclorito de sodio (NaOCl), muy extendido en los tratamientos endodónticos como solución de irrigación eficaz, puede causar graves complicaciones por su extrusión en los tejidos periapicales. El objetivo de este estudio es reportar un caso clínico de extravasación de hipoclorito durante el tratamiento endodóntico, destacando el enfoque terapéutico. Paciente de sexo femenino, 52 años, comparece en el servicio de urgencias y emergencias del Hospital de Restauración Gobernador Paulo Guerra, Recife-PE, cursando con aumento de volumen en hemiface direita de aspecto eritematoso, difuso, con sintomatología dolorosa y sensación de ardor, y necrose tecidual sugestiva de extrusión del NaOCl a través de los tejidos periapicales. Se realizó una abundante limpieza, desbridamiento, drenaje quirúrgico y antibioprofilaxis. Se observó una reducción del edema y una buena cicatrización de los tejidos intraorales, lo que demuestra que, aunque sea poco frecuente, es esencial un tratamiento rápido y preciso de esta afección, además de la terapia farmacológica para prevenir las infecciones secundarias... (AU)

Mordedura humana em dorso nasal: relato de caso / Human bite on nasal dorsum: case report / Mordida humana en espalda nasal: reporte de caso

As lesões na face decorrentes de mordedura humana estão entre os tipos de trauma causados por violência interpessoal. Injúrias causadas nesta região podem gerar uma série de morbidades como perdas teciduais importantes, infecções, além de cicatrizes irreversíveis quando a ferida é passível de reparo, portanto, os cuidados pós-trauma devem visar à minimização de cura, além da funcionalidade, buscando o máximo de estética possível. Este trabalho tem como objetivo relatar um caso clínico de mordida humana em região de dorso nasal, com avulsão da ponta nasal, atendida no Hospital da Restauração Governador Paulo Guerra, Recife-PE, pelo serviço de Cirurgia Buco-Maxilo-Facial. Procedeu-se com reparo primário e antibioticoterapia profilática, no qual o resultado do tratamento foi considerado satisfatório, boa cicatrização tecidual e sem queixas funcionais e estéticas... (AU)

Injuries to the face resulting from human bite are among the types of trauma caused by interpersonal violence. The injuries caused in this region, can generate a series of morbidities such as major tissue loss, infection, and irreversible scarring when the wound is repairable, therefore, posttrauma care should aim to minimize healing, in addition to functionality, seeking maximum aesthetics as possible. This paper aims to report a clinical case of human bite in the nasal dorsum region, with avulsion of the nasal tip, attended at the Hospital da Restauração Governador Paulo Guerra, Recife-PE, by the service of Oral and Maxillofacial Surgery. It was proceeded with primary repair and prophylactic antibiotic therapy, in which the result of the treatment was considered satisfactory, good tissue healing and without functional and aesthetic complaints... (AU)

Las lesiones faciales producidas por mordeduras humanas se encuentran entre los tipos de traumatismos causados por la violencia interpersonal. Las lesiones causadas en esta región pueden generar una serie de morbilidades como la pérdida de tejidos importantes, la infección y la cicatrización irreversible cuando la herida es reparable, por lo tanto, los cuidados posttrauma deben tener como objetivo minimizar la cicatrización, además de la funcionalidad, buscando la máxima estética posible. Este trabajo tiene como objetivo reportar un caso clínico de mordedura humana en la región del dorso nasal, con avulsión de la punta nasal, atendido en el Hospital da Restauração Governador Paulo Guerra, Recife-PE, por el servicio de Cirugía Oral y Maxilofacial. Se procedió a la reparación primaria y a la terapia antibiótica profiláctica, en la que el resultado del tratamiento se consideró satisfactorio, con buena cicatrización de los tejidos y sin quejas funcionales y estéticas... (AU)

Anatomy of the lower hypogastric plexus applied to endometriosis: a narrative review

ABSTRACT Objective The objective of the present study is to evaluate the anatomy of the inferior hypogastric plexus, correlating it with urological pathologies, imaging exams and surgeries of the female pelvis, especially for treatment of endometriosis. Material and Methods We carried out a review about the anatomy of the inferior hypogastric plexus in the female pelvis. We analyzed papers published in the past 20 years in the databases of Pubmed, Embase and Scielo, and we included only papers in English and excluded case reports, editorials, and opinions of specialists. We also studied two human fixed female corpses and microsurgical dissection material with a stereoscopic magnifying glass with 2.5x magnification. Results Classical anatomical studies provide few details of the morphology of the inferior hypogastric plexus (IHP) or the location and nature of the associated nerves. The fusion of pelvic splanchnic nerves, sacral splanchnic nerves, and superior hypogastric plexus together with visceral afferent fibers form the IHP. The surgeon's precise knowledge of the anatomical relationship between the hypogastric nerve and the uterosacral ligament is essential to reduce the risk of complications and postoperative morbidity of patients surgically treated for deep infiltrative endometriosis involving the uterosacral ligament. Conclusion Accurate knowledge of the innervation of the female pelvis is of fundamental importance for prevention of possible injuries and voiding dysfunctions as well as the evacuation mechanism in the postoperative period. Imaging exams such as nuclear magnetic resonance are interesting tools for more accurate visualization of the distribution of the hypogastric plexus in the female pelvis.

Brazilian experience with caplacizumab in acquired thrombotic thrombocytopenic purpura: outcomes of the expanded access program.

Acquired thrombotic thrombocytopenic purpura (aTTP) is a rare disease with an acute and severe clinical presentation. The anti-von Willebrand factor caplacizumab was licensed for adults with aTTP based on prospective controlled trials. However, until now, there was no Brazilian experience with this new treatment modality. This retrospective, multicenter, single-arm, expanded access program (EAP) with caplacizumab, plasma exchange (PEX), and immunosuppression was conducted between 02/24/21 and 04/14/21, and enrolled 5 Brazilian patients with aTTP. EAP allowed access to caplacizumab in Brazil and real-world data was collected, at a time when the medication was not commercially available in Brazil. The median age was 31 years old, most patients were women (80%), and neurological manifestation was observed in 80% of cases. The median of laboratory tests was hemoglobin (Hb) of 11 g/dL, platelets (16.1 × 109/L), lactic dehydrogenase (LDH) of 1471 U/L, creatinine (0.7 mg/dL), ADAMTS13 activity lower than 0.71%, and PLASMIC score of 6. All patients received immunosuppression, PEX, and caplacizumab. Until clinical response was achieved, the median was 3 sessions of PEX and 3 days of treatment. The median time of caplacizumab use was 35 days, with platelet normalization in 2 days after starting the drug. The median total length of stay was 8 days. All patients achieved clinical response and clinical remission, with a good safety profile. There was rapid clinical response, few PEX sessions were necessary, and there were short hospital stay, absence of refractoriness, little exacerbation, no death, and resolution of signs and symptoms at diagnosis.

SOHO State of the Art Updates and Next Questions | Infections in Chronic Lymphocytic Leukemia Patients: Risks and Management.

Although chronic lymphocytic leukemia (CLL) is a malignancy characterized by accumulation of tumor cells in the blood, bone marrow, lymph nodes and secondary lymphoid tissues, the hallmark of the disease and the major cause of death for patients with CLL is actually immune dysfunction and associated infections. Despite improvement in treatment based on combination chemoimmunotherapy and targeted treatment with BTK and BCL-2 inhibitors leading to longer overall survival for patients with CLL, the mortality due to infections have not improved over the last 4 decades. Thus, infections are now the main cause of death for patients with CLL, posing threats to the patient whether during the premalignant state of monoclonal B lymphocytosis (MBL), during the watch & wait phase for treatment naïve patients, or upon treatment in terms of chemoimmunotherapy or targeted treatment. To test whether the natural history of immune dysfunction and infections in CLL can be changed, we have developed the machine learning based algorithm CLL-TIM.org to identify these patients. The CLL-TIM algorithm is currently being used for selection of patients for the clinical trial PreVent-ACaLL (NCT03868722), testing whether short-term treatment with the BTK inhibitor acalabrutinib and the BCL-2 inhibitor venetoclax can improve immune function and decrease the risk of infections for this high-risk patient population. We here review the background for and management of infectious risks in CLL.

Effects of replacing inorganic salts of trace minerals with organic trace minerals in the pre- and postpartum diets on mineral status, antioxidant biomarkers, and health of dairy cows.

Our objectives were to evaluate the effects of complete replacement of supplementary inorganic salts of trace minerals (ITM; cobalt (Co), copper (Cu), manganese (Mn), zinc (Zn) sulfates and sodium (Na) selenite) by organic trace minerals (OTM; Co, Cu, Mn, Zn proteinates, and selenized yeast) in both pre- and postpartum diets on trace minerals (TM) concentrations in body fluids and liver, antioxidant and inflammation biomarkers in blood, and postpartum health of dairy cows. Pregnant cows were blocked by parity and body condition score and randomly assigned to ITM (n = 136) or OTM (n = 137) 45 d before expected calving. Both groups received the same pre- and postpartum diets except for the source of supplementary TM. The day of calving was considered study d 0 and blood was collected on d -45, -21, -14, -10, -7, -3, 0, 3, 7, 10, 14, 23, 65, and 105 for analyses of TM and biomarkers. Concentrations of TM were also investigated in the liver (d 105), milk (d 7, 23, 65, 105), urine (d -21, 21, 65, 105), ruminal fluid and feces (d -21, 21, 65). Incidence of clinical and subclinical health conditions were evaluated. Complete replacement of ITM by OTM resulted in greater concentration of selenium (Se) in serum (0.084 vs. 0.086 µg/mL; P < 0.01), milk (0.24 vs. 0.31 µg/g; P < 0.01), and ruminal fluid (0.54 vs. 0.58 µg/g; P = 0.06), and reduced concentration of Se in urine (1.54 vs. 1.23 µg/g; P<0.01). For concentration of Co in serum, an interaction between treatment and time was detected (P < 0.01). Cows supplemented with OTM had greater concentrations of Co on d -7 and 0 (0.30 vs. 0.33 ng/mL; P < 0.01) but lower concentrations of Co on d 23, 65, and 105 (0.34 vs. 0.31 ng/mL; P < 0.05), in addition to reduced concentration of Co in feces (1.08 vs. 0.99 µg/g; P = 0.04) and, for multiparous only, in urine (0.019 vs. 0.014 µg/g; P < 0.01). Cows supplemented with OTM had lower postpartum concentrations of glutamate dehydrogenase (20.8 vs. 17.8 U/L; P < 0.05) and higher albumin on d -10 (36.0 vs. 36.7 g/L; P = 0.04) and 23 (36.9 vs. 37.6 g/L; P = 0.03) relative to calving. Primiparous cows fed OTM had lower concentration of ceruloplasmin in plasma (55 vs. 51 mg/L; P ≤ 0.05). Cows supplemented with OTM had less incidence of lameness (14% vs. 7%; P = 0.05), elevated nonesterified fatty acids (NEFA) (61% vs. 44%; P < 0.01), and multiple metabolic problems (35% vs. 20%; P < 0.01). Despite the lack of differences in Cu, Mn, and Zn concentrations and antioxidant capacity, complete replacement of ITM by OTM altered concentrations of Se and Co, supported liver and hoof health, and reduced the risk of postpartum elevated NEFA.

Trace minerals (TM) are important for oxidative balance and immunity of cows. Different forms of TM are available for dietary supplementation of dairy cows. We tested whether replacing inorganic salts of TM by organic sources of TM in both pre- and postpartum diets improve TM concentration in body fluids and liver, antioxidant capacity in blood, and postpartum health of dairy cows. Despite the lack of difference in antioxidant capacity and in concentrations of Cu, Mn, and Zn, the complete replacement of inorganic salts by organic sources altered concentrations of Se and Co in circulation, and reduced the concentration of biomarkers associated with inflammation and liver damage, and the risk of lameness and postpartum metabolic problems.