28/maio/2026
Immunoexpression of stem cell markers CD44, CD133, ALDH1-2, and LGR5 in colorectal carcinoma and their association with clinicopathological tumor characteristics
einstein (São Paulo). 28/maio/2026;26:eAO2153.
Ver Artigo28/maio/2026
Immunoexpression of stem cell markers CD44, CD133, ALDH1-2, and LGR5 in colorectal carcinoma and their association with clinicopathological tumor characteristics
DOI: 10.31744/einstein_journal/2026AO2153
Highlights ■ Colorectal carcinoma originates from within cancer stem cells of the large intestine. ■ Tissue levels of ALDH1-2 and LGR5 proteins were associated with greater tumor aggressiveness. ■ Discovery of signaling pathways can improve cancer treatments that control cancer stem cells. ABSTRACT Objective: To investigate the association of CD44, CD133, ALDH1-2, and LGR5 expression with clinicopathological tumor variables. Methods: Twenty-eight adult patients with colorectal carcinoma who underwent curative surgery were included in the study. Paraffin-embedded samples were subjected to […]
Palavras-chave: Biomarcadores tumorais; Neoplasias do colo; Neoplasias colorretais; Imunoistoquímica; Metástase neoplásica; Células-tronco neoplásicas; Rectal neoplasms
28/maio/2026
Translation, cross-cultural adaptation, and semantic validation of the Spine Oncology Study Group Outcomes Questionnaire 2.0 (SOSGOQ 2.0) into Brazilian Portuguese: a qualitative validation study
einstein (São Paulo). 28/maio/2026;24:eAO2116.
Ver Artigo28/maio/2026
Translation, cross-cultural adaptation, and semantic validation of the Spine Oncology Study Group Outcomes Questionnaire 2.0 (SOSGOQ 2.0) into Brazilian Portuguese: a qualitative validation study
DOI: 10.31744/einstein_journal/2026AO2116
Highlights ■ Brazilian Portuguese translation of SOSGOQ 2.0 scale. ■ First semantic clinical validation of Brazilian SOSGOQ 2.0. ■ Cognitive interviews confirmed clarity and cultural appropriateness. ■ 100% completion with no need for clarification. ■ Ready for large-scale psychometric validation. ABSTRACT Objective: To translate, culturally adapt, and semantically validate the Brazilian Portuguese version of the Spine Oncology Study Group Outcomes Questionnaire 2.0 (SOSGOQ 2.0) through cognitive interviews with patients with spinal metastases. Methods: Following the guidelines of Beaton et al., […]
Palavras-chave: Metastases neoplasms; Qualidade de vida; Semantics; Neoplasias da coluna vertebral; Inquéritos e questionários; Estudos de Validação
28/maio/2026
Omission of sentinel lymph node biopsy in breast cancer: a survey of Brazilian breast surgeons
einstein (São Paulo). 28/maio/2026;24:eAO1673.
Ver Artigo28/maio/2026
Omission of sentinel lymph node biopsy in breast cancer: a survey of Brazilian breast surgeons
DOI: 10.31744/einstein_journal/2026AO1673
Highlights ■ De-escalation of axillary surgery has become a priority in breast cancer treatment. ■ Factors associated with the decision to omit sentinel lymph node biopsy were collected via questionnaire. ■ Sentinel lymph node biopsy was omitted more often by private doctors and those holding a doctoral degree. ■ Continuing medical education initiatives are needed to update other groups. ABSTRACT Objective: Considering the increasing number of new breast cancer cases and the morbidity associated with axillary lymph node dissection in […]
Palavras-chave: Neoplasias da mama; Mastectomy, segmental; Overtreatment; Biópsia de linfonodo sentinela; Inquéritos e questionários; Análise de sobrevida
28/maio/2026
Relationship between sugar-sweetened beverage and ultra-processed food intake: impact on leptin/adiponectin ratio in adolescents with obesity
einstein (São Paulo). 28/maio/2026;24:eAO1837.
Ver Artigo28/maio/2026
Relationship between sugar-sweetened beverage and ultra-processed food intake: impact on leptin/adiponectin ratio in adolescents with obesity
DOI: 10.31744/einstein_journal/2026AO1837
Highlights ■ Sugar-sweetened beverages are linked to a poorer inflammatory profile in adolescents. ■ Ultra-processed food intake is associated with a higher leptin/adiponectin ratio. ■ The leptin/adiponectin ratio reflects metabolic risk in adolescent obesity. ■ Dietary quality influences inflammatory hormonal markers. ABSTRACT Objective: To evaluate the relationship between dietary patterns and inflammatory markers in Brazilian adolescents with obesity. Methods: A cross-sectional analysis was conducted among 70 post-pubertal adolescents aged 15–19 years of both sexes who were classified as obese according […]
Palavras-chave: Adolescentes; Leptin/adiponectin ratio; Obesidade; Sweet sugar beverage; Ultraprocessed food
28/maio/2026
Medical students’ perception of the OSCE: development and validation of an instrument to assess formative and summative modalities
einstein (São Paulo). 28/maio/2026;24:eAO1866.
Ver Artigo28/maio/2026
Medical students’ perception of the OSCE: development and validation of an instrument to assess formative and summative modalities
DOI: 10.31744/einstein_journal/2026AO1866
Highlights ■ Instrument developed to assess medical students’ perceptions of OSCEs. ■ Evidence of strong validity and excellent internal consistency. ■ Formative and summative OSCE modalities were also assessed. ■ Tool supports educational assessment and feedback in medical education. ABSTRACT Objective: To develop, validate, and apply an instrument aimed at assessing medical students’ perceptions of the impact of an Objective Structured Clinical Examination (OSCE), both in its peer-based formative and traditional summative modalities, on clinical learning. Methods: This study used […]
Palavras-chave: Avaliação educacional; Exercício; Educação em saúde bucal; Problem-based learning; Treinamento por simulação; Inquéritos e questionários
22/maio/2026
Motor reaction time in older women with different degrees of sarcopenia: What do electroencephalograms show?
einstein (São Paulo). 22/maio/2026;24:eAO1541.
Ver Artigo22/maio/2026
Motor reaction time in older women with different degrees of sarcopenia: What do electroencephalograms show?
DOI: 10.31744/einstein_journal/2026AO1541
Highlights ■ Pre-sarcopenic women showed increased cortical excitation during motor tasks. ■ Sarcopenia was associated with slower motor reaction time. ■ EEG revealed central nervous system changes across sarcopenia stages. ■ Pre-sarcopenia may represent a window for early neuromotor intervention. ABSTRACT Objective: This study aimed to analyze cortical activity during simple motor reaction time tasks in older women with different degrees of sarcopenia. Methods: This cross-sectional, observational, analytical study included 59 women classified into control, pre-sarcopenia, and sarcopenia groups according […]
Palavras-chave: Age; Mapeamento encefálico; Eletroencefalografia; Geriatric; Destreza motora; Reaction time; Sarcopenia
22/maio/2026
Public accountability and health policy: the case of the 60-day Law in ensuring access to breast cancer treatment in São Paulo State
DOI: 10.31744/einstein_journal/2026AO2286
Highlights ■ Law 12.732/12 had limited impact on breast cancertreatment access. ■ Persistent delays in breast cancer diagnosis & treatment in São Paulo, 2013-2024. ■ External oversight prioritizes compliance, not direct results evaluation. ■ Reorient oversight to induce greater managerial accountability. ABSTRACT Objective: This article analyzed the impact of Law No. 12,732/2012 on breast cancer care in São Paulo State (Brazil) between 2013 and 2024, as well as the role of external oversight. Methods: This qualitative-quantitative study used 58,892 records […]
Palavras-chave: Neoplasias da mama; Health care quality, access, and evaluation; Equidade em Saúde; Política de saúde; Public accountability
22/maio/2026
Diaphragm stimulation in critically ill patients: what do we know, and what do we still need to learn?
einstein (São Paulo). 22/maio/2026;24:eCE2373.
Ver Artigo22/maio/2026
Diaphragm stimulation in critically ill patients: what do we know, and what do we still need to learn?
DOI: 10.31744/einstein_journal/2026CE2373
Dear Editor, Diaphragm weakness is a common complication in critically ill patients and can develop within days after the initiation of invasive mechanical ventilation.(,) It is characterized by a rapid loss of diaphragm contractile capacity, which compromises the patient’s ability to breathe independently.(,) Diaphragm weakness is strongly associated with worse clinical outcomes, including prolonged weaning from mechanical ventilation (MV), longer intensive care unit (ICU) and hospital length of stay, and higher mortality.(-) Because of its high prevalence and major clinical […]
22/maio/2026
Gluten-free is not enough
DOI: 10.31744/einstein_journal/2026CE2428
This is where danger lies for the unwary Naturally gluten-free foods are rarely the problem. Processed foods labeled as gluten-free often are. Regulatory definitions allow foods labeled gluten-free to contain up to 20 parts per million of gluten.() Some countries adopt stricter limits, below 10 parts per million.() For patients with celiac disease, these differences matter. Since my son’s diagnosis, I have learned to read every label, scrutinize every ingredient list, and carefully check for gluten-free claims. In the United […]
Influence of inflammatory and reninangiotensin system gene polymorphisms ACE2 rs2285666, IL1A rs1800587, and TNF rs1800629 on COVID-19 severity and the persistence of symptoms in the post-COVID-19 phase: a cross-sectional study
22/maio/2026
Influence of inflammatory and reninangiotensin system gene polymorphisms ACE2 rs2285666, IL1A rs1800587, and TNF rs1800629 on COVID-19 severity and the persistence of symptoms in the post-COVID-19 phase: a cross-sectional study
einstein (São Paulo). 22/maio/2026;24:eAO1503.
Ver Artigo22/maio/2026
Influence of inflammatory and reninangiotensin system gene polymorphisms ACE2 rs2285666, IL1A rs1800587, and TNF rs1800629 on COVID-19 severity and the persistence of symptoms in the post-COVID-19 phase: a cross-sectional study
DOI: 10.31744/einstein_journal/2026AO1503
Highlights ■ ACE2 rs2285666 GG genotype increased the risk ofintensive care unit risk in women. ■ TNF rs1800629 A allele was associated with severe COVID-19 and invasive mechanical ventilation. ■ IL1A rs1800587 influenced disease severity and respiratory symptoms. ■ TNF polymorphism was associated with post-COVID, cough and fatigue. ABSTRACT Objective: We evaluated the influence of single-nucleotide polymorphisms in cytokine, renin-angiotensin-aldosterone system, and uromodulin genes on COVID-19 severity and the persistence of symptoms in the post-COVID phase. Methods: Two cross-sectional cohort […]
Palavras-chave: Angiotensin-converting enzyme 2; COVID-19; Citocinas; olymorphism, genetic; Post-acute COVID-19 syndrome; SARS-CoV-2; Uromodulin
