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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D.

@idbravotobar.bsky.social
437 followers 1.2K following 833 posts

"Science isn't just a job, it's the passion for transforming knowledge into impact." Physician 🏷️ Academic 🏷️ Clinical Biomedical & Translational Research 🏷️Medical & Scientific Writing 🏷️ Consultant 🏷️ Amateur astronomer. #MedSky #SciSky #BioChemSky

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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 11/09/2026
Genomic epidemiology of dengue virus serotype 3 lineage 3III_B.3.2 in Brazil: insights into its spread and dengue severity amid co-circulation of multiple dengue serotypes - The Lancet Regional Health – Americas www.thelancet.com/journals/lan...
thelancet.com
Genomic epidemiology of dengue virus serotype 3 lineage 3III_B.3.2 in Brazil: insights into its spread and dengue severity amid co-circulation of multiple dengue serotypes
Our results reveal a dynamic pattern of multiple introductions and regionally structured spread of 3III_B.3.2, which may represent a general feature as a similar reconstructed history has also been ob...
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 10/09/2026
Corticostriatal glutamate mechanisms underlying beta synchrony and motor deficits via striatal NMDA receptors in Parkinson’s disease - eBioMedicine www.thelancet.com/journals/ebi...
thelancet.com
Corticostriatal glutamate mechanisms underlying beta synchrony and motor deficits via striatal NMDA receptors in Parkinson’s disease
Corticostriatal glutamatergic overdrive, through NMDA receptor-dependent signalling, is linked to the amplification and propagation of beta synchronisation across the CBT circuit, highlighting it as a...
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 27/08/2026
www.nature.com/articles/s41...
nature.com
Adversarial testing of global neuronal workspace and integrated information theories of consciousness - Nature
Multimodal results (iEEG, fMRI and MEG) of predictions from integrated information theory and global neuronal workspace theory align with some predictions of both theories on visual consciou...
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 23/08/2026
www.nature.com/articles/s41... #longevity
nature.com
Gemfibrozil promotes longevity and health by restricting amino acid uptake through the Dipeptide transporter, PEPT1 - npj Aging
npj Aging - Gemfibrozil promotes longevity and health by restricting amino acid uptake through the Dipeptide transporter, PEPT1
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 22/08/2026
Discontinuation of statins for primary prevention of atherosclerotic cardiovascular disease in adults aged 75 years or older (SAGA/SITE): a multicentre, open-label, pragmatic, non-inferiority randomised trial - The Lancet Healthy Longevity www.thelancet.com/journals/lan... #clinicaltrials
thelancet.com
Discontinuation of statins for primary prevention of atherosclerotic cardiovascular disease in adults aged 75 years or older (SAGA/SITE): a multicentre, open-label, pragmatic, non-inferiority randomis...
In persons aged 75 years or older receiving statins for primary prevention and with no previous history of ASCVD, discontinuation of statins was non-inferior to continuation in terms of all-cause mort...
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 11/08/2026
Clinical, molecular, and in vitro evidence of artemisinin partial resistance in Ethiopian Plasmodium falciparum: a prospective, multisite, surveillance study - The Lancet Infectious Diseases www.thelancet.com/journals/lan...
thelancet.com
Clinical, molecular, and in vitro evidence of artemisinin partial resistance in Ethiopian Plasmodium falciparum: a prospective, multisite, surveillance study
Ethiopia is the fifth sub-Saharan African country now meeting WHO confirmation criteria for ART-R. High R622I prevalence and double deletion rates, consistent with distinct selective pressures, repres...
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 28/07/2026
Genomic epidemiology of invasive meningococcal disease in Scotland before, during, and after the COVID-19 pandemic: a retrospective observational study - The Lancet Infectious Diseases www.thelancet.com/journals/lan...
thelancet.com
Genomic epidemiology of invasive meningococcal disease in Scotland before, during, and after the COVID-19 pandemic: a retrospective observational study
The COVID-19 pandemic was associated with changes in IMD capsular distribution in Scotland, concomitant with a decline in clonal complex 11. In 2025–26, 4 years after physical restrictions eased, geno...
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 15/07/2026
Safety of biopsy in phaeochromocytoma and paraganglioma: an international, multicentre, retrospective cohort study - The Lancet Diabetes & Endocrinology www.thelancet.com/journals/lan...
thelancet.com
Safety of biopsy in phaeochromocytoma and paraganglioma: an international, multicentre, retrospective cohort study
Percutaneous biopsy of PPGLs was associated with a low mortality rate. Serious complication rates were also low, most of which were not catecholamine-related. These findings challenge current recommen...
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 10/07/2026
Evaluation of the effect of multimorbidity on difficult-to-treat asthma using a novel score (MiDAS): a multinational study of asthma cohorts - The Lancet Respiratory Medicine www.thelancet.com/journals/lan...
thelancet.com
Evaluation of the effect of multimorbidity on difficult-to-treat asthma using a novel score (MiDAS): a multinational study of asthma cohorts
MiDAS highlights the co-occurrence of multimorbidity with the worst outcomes in difficult-to-treat asthma. These findings strongly indicate that an airway-centric approach is inadequate and that holis...
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 04/07/2026
A Novel Breast Arterial Calcification Age-Based Percentile Nomogram for the Incremental Prediction of Incidental Cardiovascular Events | JACC: Cardiovascular Imaging www.jacc.org/doi/10.1016/...
jacc.org
A Novel Breast Arterial Calcification Age-Based Percentile Nomogram for the Incremental Prediction of Incidental Cardiovascular Events:
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 04/07/2026
journals.sagepub.com/doi/full/10....
journals.sagepub.com
World Stroke Organization (WSO) rehabilitation certification program - Jessica Nolan, Kwah Li Khim, Dorcas BC Gandhi, Jussara A Oliveira Baggio, Shamala Thilarajah, Marina Charalambous, Emily A Steven...
Background: Rehabilitation has been identified by the World Stroke Organization (WSO) as a key priority to reduce the global burden of stroke. Global access to ...
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 02/07/2026
Whole-population trends in obesity across dimensions of inequality in England, 2019–25: a retrospective, longitudinal cohort study of 54 million adults - The Lancet Diabetes & Endocrinology www.thelancet.com/journals/lan...
thelancet.com
Whole-population trends in obesity across dimensions of inequality in England, 2019–25: a retrospective, longitudinal cohort study of 54 million adults
Obesity affects nearly one in three adults in England, with disproportionate burden among disadvantaged groups and widening disparities since the COVID-19 pandemic. Increasing rates among individuals ...
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 20/06/2026
PKCα-mediated nuclear translocation of cGAS stabilizes β-catenin and drives metastasis: Molecular Cell www.cell.com/molecular-ce...
cell.com
PKCα-mediated nuclear translocation of cGAS stabilizes β-catenin and drives metastasis
Zhang et al. reveal that nuclear cGAS promotes breast cancer metastasis by stabilizing β-catenin independently of STING. PKCα-mediated phosphorylation drives cGAS nuclear entry, where it prevents TRIM...
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 18/06/2026
www.nature.com/articles/s41...
nature.com
AI-driven clinical decision support for early diagnosis and treatment planning in patients with suspected sleep apnea using clinical and demographic data before sleep studies - npj Primary Care Respir...
npj Primary Care Respiratory Medicine - AI-driven clinical decision support for early diagnosis and treatment planning in patients with suspected sleep apnea using clinical and demographic data...
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 18/06/2026
journals.sagepub.com/doi/10.1177/...
journals.sagepub.com
Diagnostic tests and headache misdiagnoses in individuals with resistant and refractory migraine – data from the REFINE study - Federico De Santis, Chiara Rosignoli, Agnese Onofri, Mark Braschinsky, O...
Background Individuals with difficult-to-treat migraine, including resistant migraine (ResM) and refractory migraine (RefM), might experience treatment delays, ...
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Reposted by Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D.
European Association for the Study of Diabetes @easdnews.bsky.social · 11/06/2026
We, @easdnews.bsky.social & @amdiabetesassn.bsky.social are requesting public commentary on the 2026 Consensus Report on the Management of #Type2Diabetes. 📅 Review the symposium slides & submit your input before 11:59 pm ET (17:59 CEST) on 16 June 2026. 🔗 professional.diabetes.org/clinical-sup...
Promotional graphic for the updated 2026 ADA/EASD Consensus Report. Background shows a blue-tinted photograph of a male doctor in a white coat and stethoscope in consultation with a patient, with medication bottles visible in the foreground. A red diagonal banner in the top-left corner reads "Updated Consensus Report." Main text in dark blue reads: "Management of Type 2 Diabetes — A Consensus Report by the ADA and EASD." A subheading states: "The updated 2026 consensus report is open for public review and comment." Logos for EASD (European Association for the Study of Diabetes), the American Diabetes Association, and DiabetesPro are displayed along the bottom.
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 08/06/2026
www.neurology.org/doi/10.1212/...
neurology.org
Clinical Manifestations, Tumor Associations, and Long-Term Outcomes of Anti-KLHL11 Encephalitis | Neurology Neuroimmunology & Neuroinflammation
Background and ObjectivesAnti–Kelch-like protein 11 (KLHL11) encephalitis was discovered in middle-aged men with testicular seminoma and rhombencephalitis, defining a new type of paraneoplastic neurol...
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 07/06/2026
www.frontiersin.org/journals/mol...
frontiersin.org
Frontiers | From metabolic substrate to epigenetic regulation: roles and mechanisms of lactylation in brain health and disease
Lactate, traditionally regarded as a metabolic byproduct of glycolysis, is now recognized as a critical signaling molecule in the central nervous system. Eme...
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 07/06/2026
Garlic-derived metabolite activates LKB1, promotes adipose eNAMPT secretion, and improves age-related muscle function via hypothalamic signaling: Cell Metabolism www.cell.com/cell-metabol...
cell.com
Garlic-derived metabolite activates LKB1, promotes adipose eNAMPT secretion, and improves age-related muscle function via hypothalamic signaling
Suzuki and Yoshioka et al. show that the garlic-derived metabolite S-1-propenyl-L-cysteine (S1PC) increases circulating eNAMPT, a key NAD+ biosynthetic enzyme, in mice and humans by activating a criti...
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 03/06/2026
DGAT-driven futile lipid cycling has a pronounced, yet concealed, thermogenic function: Cell Metabolism www.cell.com/cell-metabol...
cell.com
DGAT-driven futile lipid cycling has a pronounced, yet concealed, thermogenic function
Through comprehensive phenotyping of complex mouse models and in vitro studies, the authors uncovered that futile lipid cycling has a sizable thermogenic output. However, in its absence, alternative m...
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 31/05/2026
Mitochondria-lysosome coupling contributes to lysosome acidification and aging: Molecular Cell www.cell.com/molecular-ce...
cell.com
Mitochondria-lysosome coupling contributes to lysosome acidification and aging
While classical models propose that lysosomes/vacuoles are acidified using free cytosolic protons, Liu et al. reveal that mitochondrial electron transport provides a substantial proton source through ...
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 26/05/2026
Therapy and biomarker dependent progression-free survival in infant sonic hedgehog medulloblastoma: a multi-national retrospective cohort study - eClinicalMedicine www.thelancet.com/journals/ecl...
thelancet.com
Therapy and biomarker dependent progression-free survival in infant sonic hedgehog medulloblastoma: a multi-national retrospective cohort study
Our findings show that iMBSHH outcomes and prognostic biomarkers are therapy dependent. In our retrospective patient group, non-metastatic iMBSHH treated with high-dose or IVT-MTX chemotherapy-only ha...
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 22/05/2026
Polyendocrine metabolic ovarian syndrome, the new name for polycystic ovary syndrome: a multistep global consensus process - The Lancet www.thelancet.com/journals/lan...
thelancet.com
Polyendocrine metabolic ovarian syndrome, the new name for polycystic ovary syndrome: a multistep global consensus process
Polyendocrine metabolic ovarian syndrome (PMOS), previously named polycystic ovary syndrome (PCOS), affects one in eight women. However, the term PCOS is inaccurate, implying pathological ovarian cyst...
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 20/05/2026
Association between antihypertensive treatment and hospitalisation or death due to falls according to sex, ethnicity, and social deprivation status: an observational cohort study in English primary care electronic health-care records - The Lancet Primary Care www.thelancet.com/journals/lan...
thelancet.com
Association between antihypertensive treatment and hospitalisation or death due to falls according to sex, ethnicity, and social deprivation status: an observational cohort study in English primary ca...
All subgroups of patients with antihypertensive prescriptions had an increased risk of hospitalisation or death due to falls versus those who were unexposed. No significant difference in risk of falls...
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 18/05/2026
Deep learning model for pathological invasiveness prediction using smartphone-based surgical resection images in clinical stage IA lung adenocarcinoma (SuRImage): a prospective, multicentric, diagnostic study - The Lancet Digital Health www.thelancet.com/journals/lan...
thelancet.com
Deep learning model for pathological invasiveness prediction using smartphone-based surgical resection images in clinical stage IA lung adenocarcinoma (SuRImage): a prospective, multicentric, diagnost...
This first-in-field diagnostic study focused on intraoperative diagnosis based on surgical resection images in stage IA LUAD and provides insights into the macroscopic morphological features for patho...
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 15/05/2026
The association between 10-year cardiovascular risk and fracture incidence in postmenopausal women: a prospective analysis from the Women's Health Initiative - The Lancet Regional Health – Americas www.thelancet.com/journals/lan...
thelancet.com
The association between 10-year cardiovascular risk and fracture incidence in postmenopausal women: a prospective analysis from the Women's Health Initiative
A higher 10-year predicted CVD risk was associated with higher MOF and hip fracture risk after adjustment for sociodemographic, lifestyle, and clinical factors. CVD risk may have implications for frac...
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 15/05/2026
Nucleoprotein and glycoprotein based serological assays for detection of Marburg virus infections - eBioMedicine www.thelancet.com/journals/ebi...
thelancet.com
Nucleoprotein and glycoprotein based serological assays for detection of Marburg virus infections
The MARV anti-NPct MR assay provides a rapid, high-throughput, species-agnostic tool expected to differentiate natural infection from vaccine-induced immunity, addressing a critical gap in the current...
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 14/05/2026
Interleukin-27 remodels the bone marrow niche to suppress B-cell development and leukaemia progression in mouse models - eBioMedicine www.thelancet.com/journals/ebi...
thelancet.com
Interleukin-27 remodels the bone marrow niche to suppress B-cell development and leukaemia progression in mouse models
IL-27 constrains B-cell haematopoiesis and B-ALL progression through coordinated progenitor inhibition and BM niche remodelling, revealing a cytokine-driven strategy with the potential to enhance leuk...
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 13/05/2026
Genetics of educational resilience after adverse childhood experiences - eBioMedicine www.thelancet.com/journals/ebi...
thelancet.com
Genetics of educational resilience after adverse childhood experiences
ACEs were associated with lower educational attainment, irrespective of genetic predisposition to education. A potential novel variant, rs2743239, was linked to educational resilience specifically amo...
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 13/05/2026
Continuous glucose monitoring versus self-monitoring of blood glucose in individuals with type 2 diabetes: a randomised, multicentre, open-label, superiority trial - The Lancet Diabetes & Endocrinology www.thelancet.com/journals/lan...
thelancet.com
Continuous glucose monitoring versus self-monitoring of blood glucose in individuals with type 2 diabetes: a randomised, multicentre, open-label, superiority trial
In adults with type 2 diabetes on basal insulin plus modern therapies, real-time CGM improved glycaemic control versus SMBG during self-management and under clinician-supported management.
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 11/05/2026
Tumor-immune-neural circuit disrupts energy homeostasis in cancer cachexia: Cancer Cell www.cell.com/cancer-cell/...
cell.com
Tumor-immune-neural circuit disrupts energy homeostasis in cancer cachexia
Shi et al. delineate an interplay among tumor cells, immune cells, and the nervous system that drives cancer cachexia and anorexia. Specifically, tumor-derived CSF1 induces macrophage GDF15, which sig...
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 11/05/2026
www.nature.com/articles/s43...
nature.com
TGFβ induces an atypical EMT to evade immune mechanosurveillance in lung adenocarcinoma dormant metastasis - Nature Cancer
Wang et al. report that LUAD cells entering dormancy transition into a TGFβ-induced atypical mesenchymal state characterized by a soft spheroidal morphology and strong EMT signature, which protects di...
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 11/05/2026
A convergent uPAR-positive tumor ecosystem creates broad vulnerability to CAR T cell therapy: Cell www.cell.com/cell/fulltex...
cell.com
A convergent uPAR-positive tumor ecosystem creates broad vulnerability to CAR T cell therapy
Synergizing with senescence-inducing therapies, uPAR CAR T cells eradicate primary and metastatic solid tumors with minimal myelodepletion by targeting both tumor cells and the stroma in preclinical m...
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 11/05/2026
Prevalence and determinants of sacroiliac joint bone marrow oedema in the general population in Germany: a population-based cross-sectional study - The Lancet Rheumatology www.thelancet.com/journals/lan...
thelancet.com
Prevalence and determinants of sacroiliac joint bone marrow oedema in the general population in Germany: a population-based cross-sectional study
Sacroiliac bone marrow oedema affects nearly one-third of adults, showing associations with pregnancy, overweight, and occupational physical stress rather than inflammatory disease. This prevalence ex...
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 08/05/2026
Kidney outcomes with GLP-1 receptor agonists in people with type 2 diabetes already receiving SGLT2 inhibitors: a target trial emulation study using UK primary care data - The Lancet Primary Care www.thelancet.com/journals/lan...
thelancet.com
Kidney outcomes with GLP-1 receptor agonists in people with type 2 diabetes already receiving SGLT2 inhibitors: a target trial emulation study using UK primary care data
These real-world data suggest that the kidney-protective benefits of GLP-1 receptor agonists observed in randomised trials of individuals with type 2 diabetes might also extend to individuals already ...
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 30/04/2026
Azurocidin-1 as a mediator of bronchiectasis severity, epithelial defence, and target of dipeptidyl peptidase-1 inhibition: an international, multicohort study - The Lancet Respiratory Medicine www.thelancet.com/journals/lan...
thelancet.com
Azurocidin-1 as a mediator of bronchiectasis severity, epithelial defence, and target of dipeptidyl peptidase-1 inhibition: an international, multicohort study
AZU1 was identified as a novel marker of disease severity in bronchiectasis, associated with bacterial infection and exacerbation, and targeted by DPP1 inhibition.
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 28/04/2026
Multi-ancestry polygenic risk scores for the prediction of type 2 diabetes and complications in diverse ancestries - The Lancet Diabetes & Endocrinology www.thelancet.com/journals/lan...
thelancet.com
Multi-ancestry polygenic risk scores for the prediction of type 2 diabetes and complications in diverse ancestries
These validated, publicly available PRSs can improve risk stratification for type 2 diabetes onset and complications across diverse ancestries, supporting their further evaluation in clinical settings...
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 27/04/2026
www.neurology.org/doi/10.1212/...
neurology.org
Vestibular and Ocular Motor Phenotype in a Case of Paraneoplastic Autoimmune Kelch-Like Protein-11 Encephalitis | Neurology Neuroimmunology & Neuroinflammation
ObjectivesKLHL11 encephalitis is often associated with vestibular symptoms and ataxia. However, the specific disorders of the vestibular and oculomotor systems have only been partially investigated so...
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 23/04/2026
Identification of cycling regulatory T cell precursors as conductors of immune escape during breast carcinoma progression: Cancer Cell www.cell.com/cancer-cell/...
cell.com
Identification of cycling regulatory T cell precursors as conductors of immune escape during breast carcinoma progression
Bui et al. map immune escape from DCIS to IBC by using single-cell transcriptomic profiling of large clinical cohorts, identifying cycTreg as key IL-33-driven immune suppressors supported by heightene...
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 22/04/2026
New approach methodologies for drug discovery: Cell www.cell.com/cell/fulltex...
cell.com
New approach methodologies for drug discovery
New approach methodologies that are human-centered, such as stem cells, organoids, and in silico models, can span the full drug discovery pipeline—from disease modeling to efficacy testing—and hold pr...
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 20/04/2026
Glucocorticoid-induced osteoporosis: novel concepts and clinical implications - The Lancet Diabetes & Endocrinology www.thelancet.com/journals/lan...
thelancet.com
Glucocorticoid-induced osteoporosis: novel concepts and clinical implications
Despite advances in targeted therapies, treatment with glucocorticoids remains a mainstay in the management of various immune-mediated diseases. High cumulative doses of exogenous glucocorticoids lead...
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 17/04/2026
Overcoming functional and translational challenges of cellular immunotherapies for solid tumors: Cancer Cell www.cell.com/cancer-cell/...
cell.com
Overcoming functional and translational challenges of cellular immunotherapies for solid tumors
Though successful in hematologic cancers, cell therapies face major barriers in solid tumors. Chen et al. review functional and translational obstacles undermining autologous and allogeneic cell-based...
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 15/04/2026
Wildlife trade drives animal-to-human pathogen transmission over 40 years | Science www.science.org/doi/10.1126/...
science.org
Wildlife trade drives animal-to-human pathogen transmission over 40 years
The wildlife trade affects a quarter of terrestrial vertebrates and creates opportunities for cross-species pathogen transmission, but its precise role in shaping animal-human pathogen exchange remain...
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 12/04/2026
link.springer.com/article/10.1...
link.springer.com
Application of luminescence-producing Mycobacterium tuberculosis strains for evaluating anti-tuberculosis drug and vaccine efficacy in vitro and in vivo - BMC Infectious Diseases
BMC Infectious Diseases - Tuberculosis (TB), caused by Mycobacterium tuberculosis (M.tb), remains a major public health problem worldwide. The development of effective drugs and vaccines remains...
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 12/04/2026
The Intermediate-mass Black Hole in Omega Centauri: Constraints on Accretion from JWST doi.org/10.3847/1538... via @ioppublishing.bsky.social
doi.org
The Intermediate-mass Black Hole in Omega Centauri: Constraints on Accretion from JWST
The Intermediate-mass Black Hole in Omega Centauri: Constraints on Accretion from JWST, Chen, Steven, Hare, Jeremy, Kargaltsev, Oleg, Yang, Hui, Cioffi, Denis, Häberle, Maximilian, Seth, Anil
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 10/04/2026
www.cell.com/cell-metabol...
cell.com
Lipid droplet-induced T cell death sustains autoimmune tissue inflammation
Kumar et al. identify a metabolically controlled trait of CD4+ T cells in autoimmune disease. Exposed to fatty acids in rheumatoid joints, they form lipid droplets containing pore-forming gasdermin D and its activator zDHHC5. These droplets induce plasma membrane lysis, resulting in the leakage of intracellular contents and tissue inflammation.
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 09/04/2026
www.cell.com/cell-metabol...
cell.com
Compartmentalized branched-chain amino acid metabolism orchestrates colorectal cancer dissemination via an UMP-vimentin axis
Compartmentalized BCAA metabolism regulates CRC dissemination through UMP-mediated stabilization of vimentin, leading to pro-migrative traits. Targeting of BCAA metabolism by dietary restriction or repurposing of UMP biosynthesis inhibitors arrests CRC dissemination. Compartmentalized BCAA metabolism is a pan-cancer biomarker for poor survival. Our study thus links metabolic reprogramming to CRC metastasis.
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 07/04/2026
Single-Cell Analysis of Chemotherapy-induced Remodeling Reveals CD276-driven Basal-like Chemoresistance in Pancreatic Cancer - Gastroenterology www.gastrojournal.org/article/S001...
gastrojournal.org
Single-Cell Analysis of Chemotherapy-induced Remodeling Reveals CD276-driven Basal-like Chemoresistance in Pancreatic Cancer
Our work reveals the plasticity of pancreatic ductal adenocarcinoma tumor cell states and their interactions with the tumor microenvironment during chemotherapy, highlighting CD276/B7-H3 as a key regu...
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 07/04/2026
The HIF-2 transcription factor mediates resistance to ferroptosis in pancreatic cancer: Molecular Cell www.cell.com/molecular-ce...
cell.com
The HIF-2 transcription factor mediates resistance to ferroptosis in pancreatic cancer
Hubbi et al. reveal that hypoxia and pancreatic tumor interstitial fluid cooperate to suppress ferroptosis in pancreatic cancer through HIF-2 activity. By transcriptionally regulating glutathione meta...
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Iván Darío Bravo Tobar. M.D. | M.Sc. | Ph.D. @idbravotobar.bsky.social · 07/04/2026
journals.sagepub.com/doi/full/10....
journals.sagepub.com
Does illicit drug use increase stroke risk? A systematic review, meta-analyses, and Mendelian randomization analysis - Megan Ritson, Hugh S Markus, Eric L Harshfield, 2026
Background: Epidemiological evidence suggests associations between substance use disorders and risk of stroke, but whether these are due to confounding or are t...
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