NanoLuc Binary Technology as a methodological approach: an important new tool for studying the localization of androgen receptor and androgen receptor splice variant V7 homo and heterodimers.

BACKGROUND: The androgen/androgen receptor (AR)-signaling axis plays a central role in prostate cancer (PCa). Upon androgen-binding the AR dimerizes with another AR, and translocates into the nucleus where the AR-dimer activates/inactivates androgen-dependent genes. Consequently, treatments for PCa are commonly based on androgen deprivation therapy (ADT). The clinical benefits of ADT are only transitory and most tumors develop mechanisms allowing the AR to bypass its need for physiological levels of circulating androgens. Clinical failure of ADT is often characterized by the synthesis of a constitutively active AR splice variant, termed AR-V7. AR-V7 mRNA expression is considered as a resistance mechanism following ADT. AR-V7 no longer needs androgenic stimuli for nuclear entry and/or dimerization. METHODS: Our goal was to mechanistically decipher the interaction between full-length AR (AR-FL) and AR-V7 in AR-null HEK-293 cells using the NanoLuc Binary Technology under androgen stimulation and deprivation conditions. RESULTS: Our data point toward a hypothesis that AR-FL/AR-FL homodimers form in the cytoplasm, whereas AR-V7/AR-V7 homodimers localize in the nucleus. However, after androgen stimulation, all the AR-FL/AR-FL, AR-FL/AR-V7 and AR-V7/AR-V7 dimers were localized in the nucleus. CONCLUSIONS: We showed that AR-FL and AR-V7 form heterodimers that localize to the nucleus, whereas AR-V7/AR-V7 dimers were found to localize in the absence of androgens in the nucleus.

Evaluation of the effect of the addition of an olive oil-derived antioxidant (Pectoliv-80A) in the extender for cryopreservation of rooster sperm through the use of a discriminant statistical tool.

During the poultry sperm cryopreservation process, an excess of reactive oxygen species is generated resulting in oxidative stress which harms the quality of avian spermatozoa. To counteract this effect, the addition of exogenous antioxidants, such as Pectoliv-80A (a by-product of olive oil), to the cryopreservation diluent is interesting. For this purpose, 16 roosters belonging to the Utrerana avian breed were used. Six semen pools (from the 6 different replicates) were divided into 4 aliquots corresponding to different concentrations of Pectoliv-80A that were tested (0, 300, 400, and 500 µg/mL), and the cryopreservation process was carried out. To evaluate post-thawing semen quality, different parameters such as motility, membrane functionality, reactive oxygen species production, lipid peroxidation, and acrosome integrity were studied. A discriminant canonical analysis was used to determine both the differences between the Pectoliv-80A concentration groups and the discriminant power of the aforementioned parameter used for semen evaluation. Total motility and membrane functionality were reported to be the most discriminant variables for differentiating the different antioxidant enrichment groups and concluded that concentrations of 300 µg/mL showed the most desirable quality of post-thawing semen. The present study could lead to the optimization of both cryopreservation and quality evaluation techniques of the sperm of rooster species, that support the conservation program of endangered local breeds.

Fungal Alcohol Dehydrogenases: Physiological Function, Molecular Properties, Regulation of Their Production, and Biotechnological Potential.

Fungal alcohol dehydrogenases (ADHs) participate in growth under aerobic or anaerobic conditions, morphogenetic processes, and pathogenesis of diverse fungal genera. These processes are associated with metabolic operation routes related to alcohol, aldehyde, and acid production. The number of ADH enzymes, their metabolic roles, and their functions vary within fungal species. The most studied ADHs are associated with ethanol metabolism, either as fermentative enzymes involved in the production of this alcohol or as oxidative enzymes necessary for the use of ethanol as a carbon source; other enzymes participate in survival under microaerobic conditions. The fast generation of data using genome sequencing provides an excellent opportunity to determine a correlation between the number of ADHs and fungal lifestyle. Therefore, this review aims to summarize the latest knowledge about the importance of ADH enzymes in the physiology and metabolism of fungal cells, as well as their structure, regulation, evolutionary relationships, and biotechnological potential.

Current Role of Endoscopic Endonasal Approach for Craniopharyngiomas: A 10-Year Systematic Review and Meta-Analysis Comparison with the Open Transcranial Approach.

In recent years, the endoscopic endonasal approach (EEA) for craniopharyngiomas has proven to be a safe option for extensive tumor resection, with minimal or no manipulation of the optic nerves and excellent visualization of the superior hypophyseal branches when compared to the Transcranial Approach (TCA). However, there is an ongoing debate regarding the criteria for selecting different approaches. To explore the current results of EEA and discuss its role in the management of craniopharyngiomas, we performed MEDLINE, Embase, and LILACS searches from 2012 to 2022. Baseline characteristics, the extent of resection, and clinical outcomes were evaluated. Statistical analysis was performed through an X2 and Fisher exact test, and a comparison between quantitative variables through a Kruskal-Wallis and verified with post hoc Bonferroni. The tumor volume was similar in both groups (EEA 11.92 cm3, -TCA 13.23 cm3). The mean follow-up in months was 39.9 for EEA and 43.94 for TCA, p = 0.76). The EEA group presented a higher visual improvement rate (41.96% vs. 25% for TCA, p < 0.0001, OR 7.7). Permanent DI was less frequent with EEA (29.20% vs. 67.40% for TCA, p < 0.0001, OR 0.2). CSF Leaks occurred more frequently with EEA (9.94% vs. 0.70% for TCA, p < 0.0001, OR 15.8). Recurrence rates were lower in the EEA group (EEA 15.50% vs. for TCA 21.20%, p = 0.04, OR 0.7). Our results demonstrate that, in selected cases, EEA for resection of craniopharyngiomas is associated with better results regarding visual preservation and extent of tumor resection. Postoperative CSF leak rates associated with EEA have improved compared to the historical series. The decision-making process should consider each person's characteristics; however, it is noticeable that recent data regarding EEA justify its widespread application as a first-line approach in centers of excellence for skull base surgery.

Geographical Classification of Saffron (Crocus Sativus L.) Using Total and Synchronous Fluorescence Combined with Chemometric Approaches.

There is an increasing interest in food science for high-quality natural products with a distinct geographical origin, such as saffron. In this work, the excitation-emission matrix (EEM) and synchronous fluorescence were used for the first time to geographically discriminate between Moroccan saffron from Taroudant, Ouarzazate, and Azilal. Moreover, to differentiate between Afghan, Iranian, and Moroccan saffron, a unique fingerprint was assigned to each sample by visualizing the EEM physiognomy. Moreover, principal component analysis (LDA) and linear discriminant analysis (LDA) were successfully applied to classify the synchronous spectra of samples. High fluorescence intensities were registered for Ouarzazate and Taroudant saffron. Yet, the Azilal saffron was distinguished by its low intensities. Furthermore, Moroccan, Afghan, and Iranian saffron were correctly assigned to their origins using PCA and LDA for different offsets (Δλ) (20-250 nm) such that the difference in the fluorescence composition of the three countries' saffron was registered in the following excitation/emission ranges: 250-325 nm/300-480 nm and 360-425 nm/500-550 nm. These regions are characterized by the high polyphenolic content of Moroccan saffron and the important composition of Afghan saffron, including vitamins and terpenoids. However, weak intensities of these compounds were found in Iranian saffron. Furthermore, a substantial explained variance (97-100% for PC1 and PC2) and an important classification rate (70-90%) were achieved. Thus, the non-destructive applied methodology of discrimination was rapid, straightforward, reliable, and accurate.

Vagococcus luciliae sp. nov., isolated from the common green bottle fly Lucilia sericata.

The genus Vagococcus belongs to the family Enterococcaceae (order Lactobacillales) and is closely related to the genus Enterococcus. Currently, 19 species of the genus have been validly named. In this study, we isolated strain G314FT from the common green bottle fly Lucilia sericata collected in Germany. Sequencing of its almost-complete 16S rRNA gene revealed that the isolate belongs to the genus Vagococcus, being closely related to Vagococcus bubulae SS1994T with high sequence identity (99.50 %), followed by Vagococcus martis D7T301T (98.86 %), Vagococcus vulneris SS1995T (98.71 %), Vagococcus teuberi DSM 21459T (98.64 %), Vagococcus silagei 2B-2T (98.64 %) and Vagococcus penaei CD276T (98.64 %). Genome sequencing of strain G314FT was performed by a combination of Illumina and Oxford Nanopore technology, yielding a circular genome with a size of 2 139 468 bp and an 11 kb plasmid. Average nucleotide identity and digital DNA-DNA hybridization values were calculated between G314FT and its closest-related taxa, and found to be <91 % and <40 %, respectively, thus strongly supporting that strain G314FT represents a novel species of the genus Vagococcus. Phylogenetic and core protein-based phylogenomic trees revealed that G314FT was closely related to a group of three species, V. bubulae SS1994T, V. martis D7T301T and V. teuberi DSM 21459T. Comparatively, the genome of G314FT is the smallest in the group of the four related species, and the biochemical pathway comparison using BlastKOALA revealed that G314FT has lost some amino acid biosynthetic proteins; however, it has gained enzymes for carbohydrate metabolism. Phenotypically, G314FT was consistent with other species of the genus Vagococcus including a negative catalase reaction and non-motility. Using the polyphasic approach, our data supports that the isolate represents a new species, for which we propose the name Vagococcus luciliae G314FT (=DSM 112651T= CCM 9164T).

Aristophania vespae gen. nov., sp. nov., isolated from wasps, is related to Bombella and Oecophyllibacter, isolated from bees and ants.

Acetic acid bacteria (family Acetobacteraceae) are found in the gut of most insects. Two clades are currently recognized: Commensalibacter-Entomobacter and Bombella-Oecophyllibacter. The latter group is only found in hymenopteran insects and the described species have been isolated from bees and ants. In this study, two new strains DDB2-T1T (=KACC 21507T=LMG 31759T) and DM15PD (=CCM 9165=DSM 112731=KACC 22353=LMG 32454) were isolated from wasps collected in the Republic of Korea and Germany, respectively. Molecular and phenotypic analysis revealed that the strains are closely related, with 16S rRNA gene sequences showing 100 % identity and genomic average nucleotide identity (ANI) values ≥99 %. The closest related species based on type strain 16S rRNA gene sequences are Swingsia samuiensis, Acetobacter peroxydans, Bombella favorum and Bombella intestini (94.8-94.7% identity), whereas the closest related species based on type strain genome analysis are Saccharibacter floricola and Bombella intestini (ANI values of 68.8 and 68.2 %, respectively). The reconstruction of a phylogenomic tree based on 107 core proteins revealed that the branch leading to DDB2-T1T and DM15PD is localized between Oecophyllibacter and Saccharibacter-Bombella. Further genomic distance metrics such as ANI, percentage of conserved proteins and alignment fraction values were consistent with these strains belonging to a new genus. The key phenotypic characteristics were one MALDI-TOF-MS peak (m/z=4601.9±2.0) and the ability to produce acid from d-arabinose. Based on this polyphasic approach, including phylogenetics, phylogenomics, genome distance calculations, ecology and phenotypic characteristics, we propose to name the novel strains Aristophania vespae gen. nov., sp. nov., with the type strain DDB2-T1T (=KACC 21507T=LMG 31759T).

Guía colombiana de práctica clínica para el diagnóstico y tratamiento del incidentaloma adrenal / Colombian clinical practice guideline for diagnostic and treatment of adrenal incidentaloma

Objetivo: Brindar recomendaciones actualizadas a urólogos y profesionales de la salud involucrados en el diagnóstico y manejo del incidentaloma adrenal. Métodos: Mediante la adopción de la guía para manejo de incidentaloma adrenal de la Sociedad Europea de Endocrinología (AGREE-II y AGREE-REX) y búsqueda complementaria de literatura basada en la mejor evidencia científica disponible en definición, diagnóstico, manejo quirúrgico y seguimiento. Adicionalmente, esta guía aborda pacientes con incidentalomas bilaterales y embarazadas. Resultados: Incidentaloma adrenal se define como una lesión mayor de 1 cm localizado en la suprarrenal, detectada mediante una imagen realizada por una razón diferente a cualquier sospecha de patología adrenal. La gran mayoría son adenomas no funcionantes, que no representan riesgo y no requieren manejo adicional. Sin embargo, existen lesiones tumorales como el carcinoma adrenocortical, el feocromocitoma, adenomas productores de hormonas o metástasis. Conclusiones: Los incidentalomas adrenales son masas predominantemente benignas que no requieren adrenalectomía, no obstante se requiere estudiarlas para descartar patologías que requieran manejo específico. Enfáticamente, la intervención quirúrgica debe guiarse por la probabilidad de malignidad, grado de secreción hormonal, edad, estado de salud y preferencia del paciente.

Objective: To provide updated recommendations to urologists and health-care providers faced to diagnosis and treatment of adrenal incidentaloma. Methods: Through adoption of the adrenal incidentaloma guideline from European Endocrinology Society (AGREE-II and AGREE-REX), and complementary search of literature based on available high-quality scientific evidence for definition, diagnosis, surgical management and follow-up. Additionally, this guideline covers bilateral adrenal incidentalomas and pregnant women. Results: Adrenal incidentaloma is defined as a lesion greater than 1 cm localized in adrenal gland, detected by imaging studies which are requested for another different reason than an adrenal pathology suspicion. A great majority are non-functional adenomas, without life-threatening risk nor additional treatment necessity. However, there are tumoral lesions that demand appropriate management like adrenocortical carcinoma, pheochromocytoma, hormone-producing adenoma, or metastasis. Conclusions: Adrenal incidentalomas predominantly are benign masses that do not require adrenalectomy (specially in asymptomatic, unilateral, non-functioning adrenal mass), nevertheless, must be exclude other harmful pathologies. Emphatically, surgical treatment must be indicated by malignant probability, hormonal-secreting status, age, health condition, and patient's preference.

Cell-Free DNA Sequencing Reveals Gene Variants in DNA Damage Repair Genes Associated with Prognosis of Prostate Cancer Patients.

In the present study, we further analyzed the data obtained in our previous study, where we investigated the cell-free DNA (cfDNA) of 34 progressive prostate cancer patients via targeted sequencing. Here, we studied the occurrence and prognostic impact of sequence variants according to their clinical pathological significance (CPS) or their functional impact (FI) in 23 DNA damage repair (DDR) genes with a focus on the ATM serine/threonine kinase gene (ATM). All patients had at least one DDR gene with a CPS or FI variant. Kaplan-Meier analysis indicated that the group with a higher number of CPS variants in DDR genes had a shorter time to treatment change (TTC) compared to the group with a lower number of CPS variants (p = 0.038). Analysis of each DDR gene revealed that CPS variants in the ATM gene and FI variants in the nibrin (NBN) gene showed a shorter TTC (p = 0.034 and p = 0.042). In addition, patients with CPS variants in the ATM gene had shorter overall survival (OS; p = 0.022) and disease-specific survival (DSS; p = 0.010) than patients without these variants. Interestingly, patients with CPS variants in seven DDR genes possessed a better OS (p = 0.008) and DSS (p = 0.009), and patients with FI variants in four DDR genes showed a better OS (p = 0.007) and DSS (p = 0.008). Together, these findings demonstrated that the analysis of cfDNA for gene variants in DDR genes provides prognostic information that may be helpful for future temporal and targeted treatment decisions for advanced PCa patients.

Fast Analysis of Caffeic Acid-Related Molecules in Instant Coffee by Reusable Sonogel-Carbon Electrodes.

Reusable Sonogel-Carbon electrodes containing carbon black (SNGC-CB) have been used for the electrochemical analysis of caffeic acid (CA) in real matrices. Measurements were firstly performed in standard solutions, in which SNGC-CB electrodes allowed the electrochemical determination of CA with high sensitivity and low limit of detection, equal to 0.76 µM. The presence of CB nanostructures in the formulation led to improved performances with respect to pristine SNGC electrodes. Then, measurements were performed in four instant coffees of different brands. A comparison between the results obtained by electrochemical, chromatographic and spectroscopic methods showed that SBGC-CB electrodes represent a simple and economic tool for the rapid assessment of caffeic acid-related molecules in instant coffees.

What Is Left for Real-Life Lactate Monitoring? Current Advances in Electrochemical Lactate (Bio)Sensors for Agrifood and Biomedical Applications.

Monitoring of lactate is spreading from the evident clinical environment, where its role as a biomarker is notorious, to the agrifood ambit as well. In the former, lactate concentration can serve as a useful indicator of several diseases (e.g., tumour development and lactic acidosis) and a relevant value in sports performance for athletes, among others. In the latter, the spotlight is placed on the food control, bringing to the table meaningful information such as decaying product detection and stress monitoring of species. No matter what purpose is involved, electrochemical (bio)sensors stand as a solid and suitable choice. However, for the time being, this statement seems to be true only for discrete measurements. The reality exposes that real and continuous lactate monitoring is still a troublesome goal. In this review, a critical overview of electrochemical lactate (bio)sensors for clinical and agrifood situations is performed. Additionally, the transduction possibilities and different sensor designs approaches are also discussed. The main aim is to reflect the current state of the art and to indicate relevant advances (and bottlenecks) to keep in mind for further development and the final achievement of this highly worthy objective.

Synthesis, Anticancer and Antitubercular Properties of New Chalcones and Their Nitrogen-Containing Five-Membered Heterocyclic Hybrids Bearing Sulfonamide Moiety.

A new series of sulfonamides, 8a-b, 10, 12, and 14a-b, were synthesized by N-sulfonation reaction with sulfonyl chlorides 6a-b. Five new series of chalcone-sulfonamide hybrids (16-20)a-f were prepared via Claisen-Schmidt condensation of the newly obtained sulfonamides with aromatic aldehydes 15a-f in basic medium. Chalcones substituted with chlorine at position 4 of each series were used as precursors for the generation of their five-membered heterocyclic pyrazoline (22-23)a-d, (24-25)a-b and carbothioamide 27a-f derivatives. The synthesized compounds were evaluated for their anticancer and antituberculosis activities. To determine their anticancer activity, compounds were screened against sixty human cancer cell lines at a single dose (10 µM). Compounds 17a-c were highly active against LOX IMVI (melanoma), with IC50 values of 0.34, 0.73 and 0.54 µM, respectively. Chalcone 18e showed remarkable results against the entire panel of leukemia cell lines with IC50 values between 0.99-2.52 µM. Moreover, compounds 20e and 20f displayed growth inhibition of Mycobacterium tuberculosis H37Rv at concentrations below 10 µM. Although they showed low selectivity in cytotoxicity tests against the Vero cell line, further optimization could advance the potential biological activity of the selected compounds.

Pseudocitrobacter corydidari sp. nov., isolated from the Asian emerald cockroach Corydidarum magnifica.

A Gram-negative bacterial strain, G163CMT, was isolated from the gut of the Asian emerald cockroach Corydidarum magnifica. The 16S rRNA gene sequence (1416 bp) of strain G163CMT showed 99.22% similarity to Pseudocitrobacter faecalis CCM 8479T and Pseudocitrobacter vendiensis CPO20170097T. The average nucleotide identity, digital DNA-DNA hybridization and average amino acid identity values of strain G163CMT were 92.4, 48.8 and 95.7% to P. faecalis CCM 8479T, and 93.3, 52.4 and 95.7% to P. vendiensis CPO20170097T. This strongly supports the designation of G163CMT as representing a new species in the genus Pseudocitrobacter. Phylogenetic trees based on the alignment of 16S rRNA, multilocus sequence analysis of six single-copy genes (fusA, pyrG, leuS, rpoB, recN and mnmE) and 107 core protein sequences consistently showed G163CMT to be a member of the genus Pseudocitrobacter, closely related to P. vendiensis CPO20170097T. In contrast to P. faecalis CCM 8479T and P. vendiensis CPO20170097T, the genome of G163CMT did not encode for proteins conferring resistance to antibiotics. However, all three genomes encoded a similar number of virulence factors and specialized metabolite biosynthetic proteins. The major fatty acids of strain G163CMT were C16:0 (31.5 %), C18:1 ω7c (22.6 %), C17:0 cyclo (15.3 %) and C14:0 (6.5 %). Based on the polyphasic results, we conclude that strain G163CMT represents a novel species of the genus Pseudocitrobacter and we propose the name Pseudocitrobacter corydidari sp. nov. with the type strain G163CMT (=DSM 112648T=CCM 9160T).

Development and Evaluation from Laboratory to Field Trial of a Dual-Purpose Fracturing Nanofluid: Inhibition of Associated Formation Damage and Increasing Heavy Crude Oil Mobility.

This study aims to develop and evaluate fracturing nanofluids from the laboratory to the field trial with the dual purpose of increasing heavy crude oil mobility and reducing formation damage caused by the remaining fracturing fluid (FF). Two fumed silica nanoparticles of different sizes, and alumina nanoparticles were modified on the surface through basic and acidic treatments. The nanoparticles were characterized by transmission electron microscopy, dynamic light scattering, zeta potential and total acidity. The rheological behavior of the linear gel and the heavy crude oil after adding different chemical nature nanoparticles were measured at two concentrations of 100 and 1000 mg/L. Also, the contact angle assessed the alteration of the rock wettability. The nanoparticle with better performance was the raw fumed silica of 7 nm at 1000 mg/L. These were employed to prepare a fracturing nanofluid from a commercial FF. Both fluids were evaluated through their rheological behavior as a function of time at high pressure following the API RP39 test, and spontaneous imbibition tests were carried out to assess the FF's capacity to modify the wettability of the porous media. It was possible to conclude that the inclusion of 7 nm commercial silica nanoparticles allowed obtaining a reduction of 10 and 20% in the two breakers used in the commercial fracture fluid formulation without altering the rheological properties of the system. Displacement tests were also performed on proppant and rock samples at reservoir conditions of overburden and pore pressures of 3200 and 1200 psi, respectively, while the temperature was set at 77 °C and the flow rate at 0.3 cm3/min. According to the effective oil permeability, a decrease of 31% in the damage was obtained. Based on these results, the fracturing nanofluid was selected and used in the first worldwide field application in a Colombian oil field with a basic sediment and water (BSW%) of 100 and without oil production. After two weeks of the hydraulic fracture operation, crude oil was produced. Finally, one year after this work, crude oil viscosity and BSW% kept showing reductions near 75% and 33%, respectively; and having passed two years, the cumulative incremental oil production is around 120,000 barrels.

An electrochemical alternative for evaluating the antioxidant capacity in walnut kernel extracts.

A fast, precise and inexpensive alternative for evaluating the antioxidant activity (AA) in walnut kernel extracts is proposed. Traditional ABTS assay and an electrochemical index approach have been applied to evaluate the AA in walnuts. A fast and efficient defatting of the walnuts by ultrasound assisted extraction (UAE) was carried out. Later, for the extraction of polyphenolic compounds, a procedure based on UAE in ethanolic medium was used. The AA of the sample ethanolic extracts was expressed as both % of inhibition by the ABTS spectrophotometric method and the electrochemical index approach (EI) obtained by the ratio between current and potential peak values using differential pulse voltammetry (DPV) at a Sonogel-Carbon electrode. The behaviour of the EI approach have been explored using six polyphenols standards and walnut kernel extracts at pH 2. All the polyphenols appeared at an oxidation potential between 0.476 and 0.778 V. Eleven samples available to consumers were analysed. A high significant correlation (R2 = 0.927) between the spectrophotometric measurements and the EI approach of the walnut extracts was obtained.

Combined miR-486 and GP88 (Progranulin) Serum Levels Are Suggested as Supportive Biomarkers for Therapy Decision in Elderly Prostate Cancer Patients.

Our study aimed to assess the applicability of miR-486 in combination with soluble GP88 protein as a diagnostic and/or predictive biomarker for prostate cancer (PCa) patients. miR-486 and GP88 levels in serum samples from 136 patients undergoing MRI-guided biopsy of the prostate were assessed by qRT−PCR and ELISA, respectively. Of these, 86 patients received a histologically confirmed diagnosis of PCa. Neither marker showed an association with the diagnosis of cancer. PCa patients were separated based on (i) treatment into patients with active surveillance or patients with any type of curative treatment and (ii) age into elderly (>68 years) patients and younger patients (≤68 years). In elderly patients (N = 41) with the intention of curative treatment at optimized cut-off values, significantly higher GP88 levels (p = 0.018) and lower miR-486 levels (p = 0.014) were observed. The total PSA level and ISUP biopsy grade were used in a baseline model for predicting definitive therapy. The baseline model exhibited an area under the curve (AUC) of 0.783 (p = 0.005). The addition of the serum biomarkers miR-486 and GP88 to the baseline model yielded an improved model with an AUC of 0.808 (p = 0.002). Altogether, combined miR-486 and GP88 serum levels are associated with and are therefore suggested as supportive biomarkers for therapy decisions, particularly in elderly PCa patients.

Cutaneous metastasis of PD-L1 positive cervical carcinoma.

•Cutaneous metastases in cervical cancer are rare and associated with a poor prognosis.•Treatment is typically palliative, utilizing chemotherapy and radiation.•We report a case of PD-L1 positive cervical cancer with cutaneous metastases that developed after initial recurrence.•For patients on checkpoint inhibitor therapy who develop skin toxicity, it is important to rule out cutaneous metastases.

Agromyces archimandritae sp. nov., isolated from the cockroach Archimandrita tessellata.

A Gram-stain-positive bacterial strain, designated G127ATT, was isolated as soft small white colonies from the hindgut of the cockroach Archimandrita tesselata. Examination of the complete 16S rRNA sequence mapped the strain to the genus Agromyces. The type strain with the highest pairwise similarity was Agromyces marinus H23-8T (97.3%). The genome of G127ATT was sequenced by a combination of Illumina and Nanopore methods and consisted of a single circular DNA molecule with a size of 3.45 Mb. The DNA G+C content was 71.3 mol%. A phylogenomic tree based on conserved single copy housekeeping genes, placed G127ATT among the ancestral species of the genus Agromyces, and only Agromyces atrinae P27T was found to diverge earlier than G127ATT. Genome distance metrics average nucleotide identity (ANI) (76-78 %) and digital DNA-DNA hybridization (dDDH) (20.2-21.5 %) of the isolate against available genomes of several type strains of species of the genus Agromyces indicated that G127ATT represented a previously undescribed species of the genus Agromyces. Morphological, physiological and biochemical characteristics, including lipid profile, cellular fatty acids and peptidoglycan type were in accordance with usual attributes of members of the genus Agromyces. The novel isolate could be differentiated from the most closely related species by extracellular expression of acid and alkaline phosphatases, trypsin and α-chymotrypsin, and utilization of l-arabinose and salicin as sole carbon sources. On the basis of the combined genomic and phenotypic features, isolate G127ATT (=DSM 111850T=LMG 32099T) is considered to represent a novel species of the genus Agromyces, for which we propose the name Agromyces archimandritae sp. nov.

Case report: A rare case of Rosai-Dorfman-Destombes disease after the COVID-19 infection.

Coronavirus disease 2019 (COVID-19) caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is known to cause immune dysregulation and, therefore, has varied and often rare presentations. Rosai-Dorfman-Destombes disease (RDD) is an unusual non-Langerhans cell (non-LC) histiocytosis presenting with massive lymphadenopathy and various systemic symptoms. A 55-year-old Asian-American woman with no significant medical history or recent use of new drugs initially presented with cervical lymphadenopathy and urticarial rash 1 week after receiving the COVID-19 messenger RNA (mRNA) vaccine (Moderna, mRNA-1273) against SARS-CoV-2. The biopsy of the skin rash was consistent with a drug reaction. Approximately 2 months later, she developed mild flu-like symptoms and was diagnosed with a COVID-19 infection. Her symptoms were mild and self-resolving. Approximately 3 months later, she developed a generalized patchy erythematous rash on the face and the body that gradually worsened; diffuse lymphadenopathy involving the bilateral cervical, axillary, and inguinal areas; and constitutional symptoms. Laboratory results were consistent with lymphopenia, anemia, and an elevated sedimentation rate. Supraclavicular lymph node biopsy showed Rosai-Dorfman disease with a marked polyclonal plasmacytosis. She was started on a tapering dose of corticosteroids and showed clinical improvements over the next few weeks. Herein, we present a rare case of a histiocytic disorder that developed after contracting the SARS-COV2 infection in the event of receiving a recent mRNA COVID vaccination.

Documento de consenso sobre el uso de iSGLT2 en pacientes con enfermedad renal crónica y diabetes / Consesus document in the use of SGLT inhibitors in patients with diabetes and chronic kidney disease

Resumen La enfermedad renal crónica (ERC) del paciente diabético es frecuentemente una consecuencia directa de la diabetes mellitus (DM) de larga evolución y se la conoce como nefropatía diabética. En México cerca del 50% de los pacientes en terapia sustitutiva de la función renal tienen ERC por DM, y este porcentaje podría aumentar en los próximos años. Nuevas opciones terapéuticas, combinadas con cambios en el estilo de vida, han mejorado el control de la glucemia y pueden contribuir sustancialmente a retrasar la aparición o la progresión a estadios avanzados de la ERC. Las sociedades científicas internacionales han elaborado guías clínicas para el diagnóstico y manejo de la nefropatía diabética, sin embargo, en algunos puntos estas recomendaciones no se adaptan a la realidad mexicana. Se presentan las conclusiones de un consenso realizado por especialistas mexicanos sobre diabetes y ERC, con especial énfasis en el uso de los inhibidores del cotransportador de sodio-glucosa.

Abstract Chronic kidney disease (CKD) in the diabetic patient is mainly a consequence of long-term diabetes mellitus itself. In Mexico approximately 50% of patients on dialysis are diabetics and this will could increase in the coming years. New therapeutic options available, combined with lifestyle changes, have improved glycemic control and may contribute to delay the onset as well as the progression of CKD. International scientific societies have developed clinical guidelines for the diagnosis and management of CKD in diabetics, although in some points, these recommendations are not adapted to the Mexican reality. We hereby present the conclusions of the consensus reached by Mexican specialists on diabetic nephropathy.