The nuclear receptor LXRα controls the functional specialization of splenic macrophages.

Macrophages are professional phagocytic cells that orchestrate innate immune responses and have considerable phenotypic diversity at different anatomical locations. However, the mechanisms that control the heterogeneity of tissue macrophages are not well characterized. Here we found that the nuclear receptor LXRα was essential for the differentiation of macrophages in the marginal zone (MZ) of the spleen. LXR-deficient mice were defective in the generation of MZ and metallophilic macrophages, which resulted in abnormal responses to blood-borne antigens. Myeloid-specific expression of LXRα or adoptive transfer of wild-type monocytes restored the MZ microenvironment in LXRα-deficient mice. Our results demonstrate that signaling via LXRα in myeloid cells is crucial for the generation of splenic MZ macrophages and identify an unprecedented role for a nuclear receptor in the generation of specialized macrophage subsets.

The Genomic Landscape of Corticotroph Tumors: From Silent Adenomas to ACTH-Secreting Carcinomas.

Corticotroph cells give rise to aggressive and rare pituitary neoplasms comprising ACTH-producing adenomas resulting in Cushing disease (CD), clinically silent ACTH adenomas (SCA), Crooke cell adenomas (CCA) and ACTH-producing carcinomas (CA). The molecular pathogenesis of these tumors is still poorly understood. To better understand the genomic landscape of all the lesions of the corticotroph lineage, we sequenced the whole exome of three SCA, one CCA, four ACTH-secreting PA causing CD, one corticotrophinoma occurring in a CD patient who developed Nelson syndrome after adrenalectomy and one patient with an ACTH-producing CA. The ACTH-producing CA was the lesion with the highest number of single nucleotide variants (SNV) in genes such as USP8, TP53, AURKA, EGFR, HSD3B1 and CDKN1A. The USP8 variant was found only in the ACTH-CA and in the corticotrophinoma occurring in a patient with Nelson syndrome. In CCA, SNV in TP53, EGFR, HSD3B1 and CDKN1A SNV were present. HSD3B1 and CDKN1A SNVs were present in all three SCA, whereas in two of these tumors SNV in TP53, AURKA and EGFR were found. None of the analyzed tumors showed SNV in USP48, BRAF, BRG1 or CABLES1. The amplification of 17q12 was found in all tumors, except for the ACTH-producing carcinoma. The four clinically functioning ACTH adenomas and the ACTH-CA shared the amplification of 10q11.22 and showed more copy-number variation (CNV) gains and single-nucleotide variations than the nonfunctioning tumors.

Dynamic Adsorption of H2S onto a Goethite-Based Material.

The use of adsorption technology to remove H2S from synthetic gas (H2S and N2) using a goethite-based adsorbent was investigated. The influence of the H2S feed concentration (150-600 mg), the adsorbent dosage (1-4 g), and the gas flow rate (210-540 cm3/min) on the breakthrough curves and H2S adsorption on the adsorbent at the breakthrough point was investigated. Dynamic column experiments were performed to provide data for the theoretical models and to verify the performance of the system in the adsorption process. The theoretical models used in the present work were found to predict the adsorption breakthrough performance reasonably well.

Case Report: Double Intrastromal Corneal Ring Segment and Posterior Chamber Phakic Intraocular Lens Implantation.

SIGNIFICANCE: Keratoconus can manifest asymmetrically, affecting binocularity and becoming a refractive problem that is sometimes complex to solve. We propose a therapeutic approach for correction of keratoconus based on parallel implantation of a second intrastromal corneal ring segment (ICRS). PURPOSE: This study aimed to improve the refractive status of a patient affected with advanced bilateral keratoconus using implantation of a second ICRS and a phakic intraocular lens. CASE REPORT: A 44-year-old man came to our clinic requesting a refractive solution for his visual impairment. He had been diagnosed with bilateral severe keratoconus categorized by the Amsler-Krumeich classification scale as grade III (right eye) and grade II (left eye). He had previously undergone corneal cross-linking and implantation of ICRS (Intacs) in both eyes. Significant anisometropia was present between the eyes, and the patient also complained of poor quality of vision. We decided to implant a posterior chamber phakic collamer lens in his right eye and to insert a new ICRS (Keraring) deep and parallel to the previous one in his left eye. We aimed to prevent anisometropia in his right eye and to further regularize the affected cornea in his left eye. Refractive symmetry was achieved, and vision was optimized after surgery. CONCLUSIONS: In a patient with keratoconus, refractive surgery should be performed from a bilateral perspective. Specific cases of keratoconus can be managed by parallel implantation of a second ICRS.

Organic Dyes versus Adsorption Processing.

Even in the first quarter of the XXI century, the presence of organic dyes in wastewaters was a normal occurrence in a series of countries. As these compounds are toxic, their removal from these waters is a necessity. Among the separation technologies, adsorption processing appeared as one of the most widely used to reach this goal. The present work reviewed the most recent approaches (first half of the 2021 year) regarding the use of a variety of adsorbents in the removal of a variety of organic dyes of different natures.

Performance of fetal middle cerebral artery peak systolic velocity for prediction of anemia in untransfused and transfused fetuses: systematic review and meta-analysis.

OBJECTIVE: To evaluate the performance of fetal middle cerebral artery peak systolic velocity (MCA-PSV) ≥ 1.5 multiples of the median (MoM) for the prediction of moderate-severe anemia, in untransfused and transfused fetuses. METHODS: A systematic search was performed to identify relevant observational studies reported in the period 2008-2018 that evaluated the performance of MCA-PSV, using a threshold of 1.5 MoM for the prediction of fetal anemia. Diagnosis of fetal anemia by blood sampling was the reference standard. A hierarchical summary receiver-operating characteristics (hSROC) curve was constructed using random-effects modeling. Subgroup and meta-regression analyses, according to the number of previous intrauterine transfusions, were performed. RESULTS: Twelve studies and 696 fetuses were included in the meta-analysis. The area under the hSROC curve (AUC) for moderate-severe anemia was 83%. Pooled sensitivity and specificity (95% CI) were 79% (70-86%) and 73% (62-82%), respectively, and positive and negative likelihood ratios were 2.94 (95% CI, 2.13-4.00) and 0.272 (95% CI, 0.188-0.371). When considering only untransfused fetuses, prediction improved, achieving an AUC of 87%, sensitivity of 86% (95% CI, 75-93%) and specificity of 71% (95% CI, 49-87%). A decline in sensitivity for the prediction of moderate-severe anemia by MCA-PSV ≥1.5 MoM was observed (estimate, -5.5% (95% CI, -10.7 to -0.3%), P = 0.039) as the number of previous transfusions increased. CONCLUSIONS: MCA-PSV ≥ 1.5 MoM for the prediction of moderate-severe anemia in untransfused fetuses shows moderate accuracy (86% sensitivity and 71% specificity), which declines with increasing number of intrauterine transfusions. Copyright © 2019 ISUOG. Published by John Wiley & Sons Ltd.

Rendimiento de la velocidad sistólica máxima de la arteria cerebral media fetal para la predicción de la anemia en fetos sometidos a transfusión y no sometidos: revisión sistemática y metaanálisis OBJETIVOS: Estimar las diferencias en la frecuencia del diagnóstico del útero septo mediante tres definiciones diferentes y determinar si estas diferencias son significativas en la práctica clínica, y examinar la relación entre el diagnóstico del útero septo, por medio de cada una de las tres definiciones, y la infertilidad o el aborto espontáneo previo, así como con el costo de la recomendación de cirugía. MÉTODOS: Este estudio fue un análisis secundario de los datos de un estudio prospectivo de 261 mujeres en edad reproductiva que asisten de forma consecutiva a una clínica privada especializada en el diagnóstico y tratamiento de las malformaciones congénitas del útero. El nuevo análisis de los conjuntos de datos se realizó de acuerdo con tres maneras diferentes de definir el útero septo: siguiendo las recomendaciones de la Sociedad Americana de Medicina Reproductiva (ASRM, por sus siglas en inglés), una actualización de 2016 de las de la Sociedad Americana de la Fertilidad de 1988 (ASRM-2016: profundidad de la hendidura interna del fondo uterino ≥1,5 cm, ángulo de la hendidura interna <90o y profundidad de la hendidura externa <1 cm); con base en las recomendaciones de la Sociedad Europea para la Reproducción Humana y Embriología/Sociedad Europea de Endoscopía Ginecológica (ESHRE/ESGE, por sus siglas en inglés), publicadas en 2013 y revisadas en 2016 (ESHRE/ESGE-2016: profundidad de la hendidura interna del fondo uterino >50% del espesor de la pared uterina y profundidad de la hendidura externa <50% del espesor de la pared uterina, cuando se mide el espesor de la pared uterina por encima de la línea interostial/intercornual); y utilizando una definición publicada el año pasado que se basaba en la decisión tomada con mayor frecuencia por un grupo de expertos (Malformación Uterina Congénita según los Expertos; CUME, por sus siglas en inglés) (CUME-2018: profundidad de la hendidura interna del fondo uterino ≥1 cm y profundidad de la hendidura externa del fondo uterino <1cm). Se comparó la tasa de diagnóstico del útero septo utilizando cada una de estas tres definiciones y, para cada una, se estimó la relación entre el diagnóstico y la infertilidad y/o el aborto espontáneo previo, y se anticiparon los costos asociados con su implementación mediante un método de estimación conjetural. RESULTADOS: Aunque el 32,6% (85/261) de las mujeres cumplieron con los criterios de una de las tres definiciones de útero septo, sólo el 2,7% (7/261) de ellas se pudieron definir como con útero septo de acuerdo con las tres definiciones. Significativamente, se diagnosticaron más casos de útero septo usando los criterios de ESHRE/ESGE-2016 que usando los de ASRM-2016 (31% vs 5%, riesgo relativo (RR)=6,7, P<0.0001) o de CUME-2018 (31% vs 12%, RR=2,6, P<0.0001). También se observaron casos frecuentes que no pudieron ser clasificados definitivamente por ASRM-2016 (zona gris: ni normal/arcuado ni septo; 6,5%). No hubo diferencias significativas (P>0,05) en la prevalencia de útero septo en mujeres con infertilidad vs mujeres fértiles, según ASRM-2016 (5% vs 4%), ESHRE/ESGE-2016 (35% vs 28%) o CUME-2018 (11% vs 12%). El diagnóstico del útero septo fue significativamente más frecuente en mujeres con aborto espontáneo previo, según los criterios de ASRM-2016 (11% vs 3%; P=0,04) y de CUME-2018 (22 vs 10%; P=0,04), pero no según los criterios de ESHRE/ESGE-2016 (42% vs 28%; P=0,8). Los cálculos mostraron que los costos globales para el sistema de salud dependerían en gran medida de los criterios utilizados desde el punto de vista clínico para definir el útero septo, siendo los costos asociados con la definición de ESHRE/ESGE-2016 potencialmente de 100-200 mil millones de dólares adicionales durante 5 años, en comparación con los asociados a las definiciones ASRM-2016 y CUME-2018. CONCLUSIONES: La prevalencia del útero septo según las definiciones de ESHRE/ESGE-2016, ASRM-2016 y CUME-2018 difiere considerablemente. Una limitación importante de la clasificación ASRM, que debe ser abordada, es la alta proporción de casos no clasificables originalmente denominados, por nosotros, como en la 'zona gris'. La alta tasa de sobrediagnóstico del útero septo en función de ESHRE/ESGE-2016 puede llevar a un uso innecesario de la cirugía y, por lo tanto, a un riesgo innecesario en estas mujeres y puede imponer una carga financiera considerable a los sistemas sanitarios. Se deben fomentar los esfuerzos para definir criterios clínicamente significativos y aplicables de forma universal para el diagnóstico del útero septo.

Effect of the Immobilization Strategy on the Efficiency and Recyclability of the Versatile Lipase from Ophiostoma piceae.

The recombinant lipase from Ophiostoma piceae OPEr has demonstrated to have catalytic properties superior to those of many commercial enzymes. Enzymatic crudes with OPEr were immobilized onto magnetite nanoparticles by hydrophobicity (SiMAG-Octyl) and by two procedures that involve covalent attachment of the protein (mCLEAs and AMNP-GA), giving three nanobiocatalysts with different specific activity in hydrolysis of p-nitrophenyl butyrate (pNPB) and good storage stability at 4 °C over a period of 4 months. Free OPEr and the different nanobiocatalysts were compared for the synthesis of butyl esters of volatile fatty acids C4 to C7 in reactions containing the same lipase activity. The esterification yields and the reaction rates obtained with AMNP-GA-OPEr were in general higher or similar to those observed for the free enzyme, the mCLEAs-OPEr, and the non-covalent preparation SiMAG-Octyl-OPEr. The time course of the esterification of the acids C4 to C6 catalyzed by AMNP-GA-OPEr was comparable. The synthesis of the C7 ester was slower but very efficient, admitting concentrations of heptanoic acid up to 1 M. The best 1-butanol: acid molar ratio was 2:1 for all the acids tested. Depending on the substrate, this covalent preparation of OPEr maintained 80-96% activity over 7 cycles, revealing its excellent properties, easy recovery and recycling, and its potential to catalyze the green synthesis of chemicals of industrial interest.

Apoptotic cells promote their own clearance and immune tolerance through activation of the nuclear receptor LXR.

Effective clearance of apoptotic cells by macrophages is essential for immune homeostasis. The transcriptional pathways that allow macrophages to sense and respond to apoptotic cells are poorly defined. We found that liver X receptor (LXR) signaling was important for both apoptotic cell clearance and the maintenance of immune tolerance. Apoptotic cell engulfment activated LXR and thereby induced the expression of Mer, a receptor tyrosine kinase critical for phagocytosis. LXR-deficient macrophages exhibited a selective defect in phagocytosis of apoptotic cells and an aberrant proinflammatory response to them. As a consequence of these defects, mice lacking LXRs manifested a breakdown in self-tolerance and developed autoantibodies and autoimmune glomerulonephritis. Treatment with an LXR agonist ameliorated disease progression in a mouse model of lupus-like autoimmunity. Thus, activation of LXR by apoptotic cells engages a virtuous cycle that promotes their own clearance and couples engulfment to the suppression of inflammatory pathways.

Tin and silver recovery from wave soldering dross.

This work proposes a method for the recovery of tin and silver from wave soldering dross produced during the manufacture of printed circuit boards. Samples of wave soldering dross were first subjected to carbothermic reduction to obtain an ingot containing the above metals plus other elements. This ingot was then subjected to electrorefining at different densities of electrical current, electrolyte flow rate, and cathode-anode separation distance, to determine the optimum conditions for recovering pure tin. Under such conditions, 82 wt% of the tin in the ingot was recovered at a purity of 99.94%. After subjecting ingots to continuous electrorefining under optimum conditions for 845 h, the slime collected at the anode was removed for the recovery of silver. This slime was subjected to thin-layer leaching with concentrated nitric acid. The leachate produced was subjected to copper-cementation; the silver adhering to the copper rod was collected by washing. This process recovered 92% of the silver in the wave soldering dross ingot at a purity of >99.6%. Some 99% of the copper entering the leachate from the copper rod during cementation was recovered by liquid-liquid extraction with 40% LIX84 (dissolved in EXXOL D100). This method could provide a rapid, inexpensive means of recovering pure tin and silver from wave soldering dross.

Pituitary apoplexy in nonfunctioning pituitary macroadenomas: a case-control study.

OBJECTIVE: Pituitary apoplexy (PA) is an endocrinologic emergency characterized by headache, visual abnormalities, and hemodynamic instability in the context of hemorragic infarction of a pituitary adenoma. Our goal was to estimate the incidence, precipitating factors, clinical characteristics, and outcome of PA in a cohort of patients with nonfunctioning pituitary macroadenomas (NFPMAs). METHODS: A retrospective, case-control study of 46 patients with PA and 47 controls matched for age, gender, and tumor invasiveness. Clinical, hormonal, and tumoral charactersitics, as well as the presence of potential precipitating factors and long-term outcome were evaluated using both bivariate and multivariate analysis. RESULTS: The prevalence of PA was 8%. Cases and controls were similar in regards to the prevalence of diabetes, hypertension, use of antiplatelet agents, and the presence of headaches and visual field defects. Oculomotor paralysis was present in 18% of cases and in none of the controls (P = .001). Prior use of dopamine agonists was significantly more frequent among cases than in controls on both bivariate and multivariate analysis. Pituitary hormone deficiencies were more common among cases than in controls on bivariate but not on multivariate analysis. Early and late surgical treatment was carried out in 11 and 25 patients, respectively; 11 patients were managed conservatively. Visual and endocrine outcomes were similar among the 3 groups. CONCLUSION: PA represents a life-threatening medical emergency. Prior use of dopamine agonists and the presence of oculomotor abnormalities clearly distinguished patients with NFPMA who developed PA from those who did not.

Systemic White supremacy: U.S. state policy, policing, discrimination, and suicidality across race and sexual identity.

Although suicide rates are stable or decreasing among White communities, rates are increasing among Black communities, a trend that appears to be disproportionately affecting Black lesbian, gay, bisexual, and queer (LGBQ) people. To understand the structural drivers and mechanisms of these trends, we examined associations between U.S. state-level racist and heterosexist criminal legal policies and policing, discrimination, and suicidality among White and Black, heterosexual and LGBQ, communities. We recruited 5,064 participants in 2021 using online census-driven quota sampling. Structural equation modeling estimated associations from objective indicators of racist and heterosexist criminal legal policies to self-reported police stops, discrimination, and suicidal ideation and behavior. For White heterosexual participants, racist (ß = -.22, SE = 0.03, p < .001) and heterosexist (ß = -.26, SE = 0.03, p < .001) policies were negatively associated with police stops. For White LGBQ participants, racist and heterosexist policies were not significantly associated with police stops. For Black heterosexual participants, racist (ß = .30, SE = 0.11, p = .005), but not heterosexist, policies were positively associated with police stops. For Black LGBQ participants, racist (ß = .57, SE = 0.08, p < .001) and heterosexist (ß = .65, SE = 0.09, p < .001) policies were positively associated with police stops which, in turn, were positively associated with discrimination and suicidal ideation and behavior. Results provide evidence that racist and heterosexist state policies are linked to policing and interpersonal drivers of suicide inequities and suggest that repealing/preventing oppressive policies should be a suicide prevention imperative. (PsycInfo Database Record (c) 2024 APA, all rights reserved).

By Medical Students, for Medical Students: A Narrative Medicine Antiracism Program.

Objectives: Medical schools have sought to incorporate concepts of race and racism in their curricula to facilitate students' abilities to grapple with healthcare disparities in the United States; however, these efforts frequently fail to address implicit bias or equip students with cultural humility, reflective capacity, and interpersonal skills required to navigate racialized systems in healthcare. The purpose of this study was to develop and evaluate an antiracism narrative medicine (NM) program designed by and for preclinical medical students. Method: Preclinical medical students at a single center were eligible to participate from June-July 2021. Program evaluation included a postprogram qualitative interview and electronic survey. The semistructured interview included questions about program experience, lessons learned, and perspectives on antiracism curricula in medical education. Interviews were qualitatively analyzed using open and axial coding. Survey data were analyzed with descriptive statistics. Results: A total of 30 students registered. All (100%) respondents reported "somewhat true" or "very true" in the postprogram survey when asked about their ability to reflect on their own racial identity, racial identity of others, and influence of their racial identity on their future role as a healthcare worker through the program. Qualitative analysis revealed 3 themes: (1) curricular engagement; (2) racism and antiracism in medicine; and (3) group experience. Subthemes included: meaningful theoretical content; multimodal works and unique perspectives; race, identity, and intersectionality; deeper diversity, equity, and inclusion engagement; reconstructive visions; future oriented work; close reading and writing build confidence in discomfort; community and support system; and authentic space among peer learners. Conclusion: This virtual, peer-facilitated antiracism NM program provided an engaging and challenging experience for participants. Postprogram interviews revealed the program deepened students' understanding of racism, promoted self-reflection and community building, and propagated reconstructive visions for continuing antiracism work.

Phacoemulsification with implantation of a trifocal intraocular lens in eyes with asteroid hyalosis and synchysis scintillans.

PURPOSE: To compare the visual outcomes in both eyes of patients who undergo phacoemulsification and trifocal intraocular lens (IOL) implantation and have asteroid hyalosis (AH) or synchysis scintillans (SS) in only one eye. METHODS: A retrospective comparative case series was performed. We evaluated uncorrected distance visual acuity (UDVA), corrected distance visual acuity (CDVA), uncorrected intermediate visual acuity (UIVA), uncorrected near visual acuity (UNVA), predictability, safety, efficacy, and satisfaction after implantation of the same model of trifocal IOL in both eyes (PhysIOL FineVision Pod-F and Micro-F and Rayner RayOne Trifocal). RESULTS: A total of 164 eyes of 82 patients (41 females, 50%) met the inclusion criteria. There were no statistically significant differences in sphere, cylinder, spherical equivalent, UDVA, UIVA, or UNVA between the groups. Postoperative CDVA was slightly better in the control group (logMAR 0.03) than in the AH/SS group (logMAR 0.04) (P: 0.014). There were no statistically significant differences in predictability, safety index, or efficacy index between the groups. Overall subjective satisfaction was good (98.2%). CONCLUSIONS: Visual outcomes and satisfaction are good after implantation of trifocal IOLs in eyes with AH or SS. Therefore, trifocal IOLs should not be ruled out in these patients when no other vitreoretinal disorder is present.

Visual outcomes of combined use of implantable collamer lens implantation and laser corneal visual correction for myopia over -18.00 diopters.

PURPOSE: To explore visual outcomes in patients with extreme myopia receiving an implantable collamer lens (ICL) at -18.00 diopters (D), with central port, followed by bioptics by laser vision correction (laser in situ keratomileusis [LASIK] or photorefractive keratectomy [PRK]) to address residual myopia or myopic astigmatism. SETTING: Clínica Baviera (Aier Eye Hospital Group), Bilbao, Spain. DESIGN: Retrospective analysis of cases. METHODS: The study assessed uncorrected distance visual acuity, corrected distance visual acuity (CDVA), predictability, safety, efficacy, and patient satisfaction after implantation of the ICL and bioptics. The model implanted was V4c and EVO, with a correction of -18.00 D. Bioptics were performed at least 3 months after implantation, and patients were followed up for at least 3 months after LASIK or PRK. RESULTS: The analysis included 125 eyes from 90 patients. Of these, 51.2% underwent LASIK and 48.8% PRK. Mean time from implantation to bioptics was 5.9 ± 9.4 months. Patients were followed up for a mean of 40.2 ± 37.9 months after bioptics. Median manifest refractive spherical equivalent was -2.89 D before bioptics and -0.49 D after. Median CDVA was 0.18 logMAR before bioptics and 0.17 after. The mean safety and efficacy indices were 2.22 ± 1.88 and 2.06 ± 1.85, respectively. CONCLUSIONS: Visual outcomes and safety indices after ICL implantation and subsequent LASIK or PRK in patients with extreme myopia are excellent.

Cocaine-Induced Asthma and the "Crack Lung": A Case Report.

Cocaine, the second most used illicit drug, is associated with cardiovascular, pulmonary, and other complications. Lung involvement associated with cocaine use, also known as "crack lung syndrome" (CLS), can elicit new-onset and exacerbate chronic pulmonary conditions. A 28-year-old female with a history of chronic controlled asthma arrived at the Emergency Department (ED), referring to cocaine inhalation, followed by symptoms compatible with an asthmatic crisis, requiring immediate steroid and bronchodilator therapy. Radiological studies and bronchoscopy confirmed CLS diagnosis. Despite treatment with oxygen, bronchodilators, and steroids, the asthmatic crises persisted. However, after 48 hours, we observed a complete regression of the lung infiltrates. This case highlights the importance of clinical suspicion, bronchoscopy findings, and the potential co-occurrence of CLS with asthma exacerbations. While computed tomography (CT) scans can be helpful, they should not be the only tool to diagnose CLS. The successful management of CLS involves the use of bronchodilators, steroids, and oxygen therapy and abstaining from cocaine use. Researchers should conduct further studies to diagnose and treat CLS in conjunction with acute asthma symptoms to assist this patient population better.

Acetazolamide-induced bilateral choroidal effusion following insertion of a phakic implantable collamer lens.

PURPOSE: To present the case of a 28-year-old man with acetazolamide-induced bilateral choroidal effusion after uneventful surgery of the second eye in delayed sequential bilateral insertion of an implantable collamer lens for hyperopia. METHODS: Case report. RESULTS: Surgery of the left eye was uneventful, and the implantable collamer lens was implanted 3 weeks later in the right eye. Twenty-four hours after surgery, the patient presented with bilateral shallow anterior chamber, vault 0, and myopic shift (-8 diopters) in both eyes. B-scan ultrasound showed choroidal thickening in both eyes, which was consistent with choroidal effusion syndrome. A causal relationship was suspected with oral acetazolamide, which had been prescribed after surgery. When the drug was stopped, the condition improved slowly and resolved completely within 5 days. CONCLUSIONS: Choroidal effusion should be included in the differential diagnosis of shallow anterior chamber after implantation of an implantable collamer lens.

Valorisation of waste ilmenite mud in the manufacture of sulphur polymer cement.

This paper reports the preparation of sulphur polymer cements (SPCs) incorporating waste ilmenite mud for use in concrete construction works. The ilmenite mud raw material and the mud-containing SPCs (IMC-SPCs) were characterised physico-chemically and radiologically. The optimal IMC-SPC mixture had a sulphur/mud ratio (w/w) of 1.05 (mud dose 20 wt%); this cement showed the greatest compressive strength (64 MPa) and the lowest water absorption coefficient (0.4 g cm(-2) at 28 days). Since ilmenite mud is enriched in natural radionuclides, such as radium isotopes (2.0·10(3) Bq kg(-1)(228)Ra and 5.0·10(2) Bq kg(-1)(226)Ra), the IMC-SPCs were subjected to leaching experiments, which showed their environmental impact to be negligible. The activity concentration indices for the different radionuclides in the IMC-SPCs containing 10% and 20% ilmenite mud met the demands of international standards for materials used in the construction of non-residential buildings.

Feasibility, Acceptability, and Preliminary HIV Care and Psychological Health Effects of iTHRIVE 365 for Black Same Gender Loving Men.

OBJECTIVES: This uncontrolled pilot study examined the feasibility, acceptability, and preliminary HIV and psychological health effects of iTHRIVE 365, a multicomponent intervention designed by and for Black same gender loving men (SGLM) to promote: health knowledge and motivation, Black SGLM social support, affirming health care, and housing and other economic resources. DESIGN METHODS: We conducted a 14-day daily diary study with 32 Black SGLM living with HIV connected to THRIVE SS in Atlanta, GA. Daily surveys assessed intervention engagement, antiretroviral medication (ART) use, depressive symptoms, anxiety symptoms, and emotion regulation difficulties. App paradata (ie, process data detailing app usage) assessed amount of intervention engagement via page access. Participants began receiving access to the intervention on day 7. After the 14-day daily diary period, participants responded to follow-up items on the user-friendliness, usefulness, helpfulness, and whether they would recommend iTHRIVE 365 to others. Chi-square analyses examined associations between intervention engagement and ART use, and dynamic structural equation modelling assessed longitudinal associations from intervention engagement to next-day psychological health. This intervention trial is registered on ClinicalTrials.gov (NCT05376397). RESULTS: On average, participants engaged with iTHRIVE 365 over once every other day and accessed intervention pages 4.65 times per day. Among participants who engaged with the intervention, 78% reported it was helpful to extremely helpful, 83% reported it was moderately to extremely useful, and 88% reported it was user-friendly and they would recommend it to others. On intervention engagement days, participants had higher odds of ART use, χ 2 (1) = 4.09, P = 0.04, than intervention nonengagement days. On days after intervention engagement, participants showed non-null decreases in depressive symptoms (τ = -0.14; 95% CI : = [-0.23, -0.05]) and emotion regulation difficulties (τ = -0.16; 95% CI : = [-0.24, -0.02]). CONCLUSIONS: Findings suggest iTHRIVE 365 is feasible, acceptable, and positively affects daily ART use, depressive symptoms, and emotion regulation difficulties.

Pituitary cryptococcoma in an immunocompetent patient with panhypopituitarism: illustrative case.

BACKGROUND: Cryptococcosis is the most common mycosis of the central nervous system. It may develop in immunocompetent and immunocompromised patients, the latter representing most cases. The most common presentation of the disease is meningitis, whereas intra-axial lesions in the form of cryptococcoma are less frequent with a greater tendency to present in immunocompetent patients. The presentation of pituitary cryptococcoma is exceptional. To the best of the authors' knowledge, there is only one case published in the medical literature. OBSERVATIONS: The authors present the case of a 30-year-old male without a relevant medical history. He was referred to our center with a pituitary mass on magnetic resonance imaging and panhypopituitarism. The patient underwent endonasal endoscopic transsphenoidal tumor resection, and a histopathological diagnosis of pituitary cryptococcoma was made. Medical management included fluconazole and intravenous amphotericin. LESSONS: This case underscores the neurosurgical and medical management of an exceptional clinical presentation of pituitary cryptococcoma in an immunocompetent patient. To the best of the authors' knowledge, there is only one case published in the medical literature. This case provides an invaluable review of the clinical, imaging, and therapeutic considerations regarding this exceptional clinical entity.