Single-cell genomics revealed Candidatus Grellia alia sp. nov. as an endosymbiont of Eutreptiella sp. (Euglenophyceae).

Though endosymbioses between protists and prokaryotes are widespread, certain host lineages have received disproportionate attention what may indicate either a predisposition to such interactions or limited studies on certain protist groups due to lack of cultures. The euglenids represent one such group in spite of microscopic observations showing intracellular bacteria in some strains. Here, we perform a comprehensive molecular analysis of a previously identified endosymbiont in the Eutreptiella sp. CCMP3347 using a single cell approach and bulk culture sequencing. The genome reconstruction of this endosymbiont allowed the description of a new endosymbiont Candidatus Grellia alia sp. nov. from the family Midichloriaceae. Comparative genomics revealed a remarkably complete conjugative type IV secretion system present in three copies on the plasmid sequences of the studied endosymbiont, a feature missing in the closely related Grellia incantans. This study addresses the challenge of limited host cultures with endosymbionts by showing that the genomes of endosymbionts reconstructed from single host cells have the completeness and contiguity that matches or exceeds those coming from bulk cultures. This paves the way for further studies of endosymbionts in euglenids and other protist groups. The research also provides the opportunity to study the diversity of endosymbionts in natural populations.

Factors influencing treatment decision-making for cancer patients in low- and middle-income countries: A scoping review.

PURPOSE: In this scoping review, we evaluated existing literature related to factors influencing treatment decision-making for patients diagnosed with cancer in low- and middle-income countries, noting factors that influence decisions to pursue treatment with curative versus non-curative intent. We identified an existing framework for adult cancer developed in a high-income country (HIC) context and described similar and novel factors relevant to low-and middle-income country settings. METHODS: We used scoping review methodology to identify and synthesize existing literature on factors influencing decision-making for pediatric and adult cancer in these settings. Articles were identified through an advanced Boolean search across six databases, inclusive of all article types from inception through July 2022. RESULTS: Seventy-nine articles were identified from 22 countries across six regions, primarily reporting the experiences of lower-middle and upper-middle-income countries. Included articles largely represented original research (54%), adult cancer populations (61%), and studied patients as the targeted population (51%). More than a quarter of articles focused exclusively on breast cancer (28%). Approximately 30% described factors that influenced decisions to choose between therapies with curative versus non-curative intent. Of 56 reported factors, 22 novel factors were identified. Socioeconomic status, reimbursement policies/cost of treatment, and treatment and supportive care were the most commonly described factors. CONCLUSIONS: This scoping review expanded upon previously described factors that influence cancer treatment decision-making in HICs, broadening knowledge to include perspectives of low- and middle-income countries. While global commonalities exist, certain variables influence treatment choices differently or uniquely in different settings. Treatment regimens should further be tailored to local environments with consideration of contextual factors and accessible resources that often impact decision-making.

Multidisciplinary Clinician Perspectives on Embedded Palliative Care Models in Pediatric Cancer.

CONTEXT: Integration of palliative care (PC) into pediatric cancer care is considered best practice by national oncology and pediatric organizations. Optimal strategies for PC integration remain understudied, although growing evidence suggests that embedded models improve quality of care and quality of life for patients and families. OBJECTIVES: To describe the perspectives and preferences of multidisciplinary clinicians regarding ideal models for PC integration in pediatric cancer care; to introduce clinicians to the theoretical concept of an embedded care model; to empower clinicians in co-design of a new institutional model through collaborative discussion of anticipated benefits and challenges of embedded model implementation. METHODS: Trained facilitators conducted 24 focus groups, stratified by discipline and care team. Focus groups were audio-recorded and transcribed for inductive content analysis using MAXQDA software. RESULTS: 174 clinicians participated (25 physicians, 30 advanced practice providers [APPs], 70 nurses, 49 psychosocial clinicians). Clinicians across disciplines verbalized that an embedded PC model would improve access to PC; however, identified benefits and challenges varied by discipline. Benefits included earlier integration of PC (physicians, APPs), normalization of PC as an integral aspect of care by patients/families (nurses, psychosocial), collaboration (physicians, psychosocial clinicians), and communication (APPs, psychosocial). Anticipated challenges included inadequate resources and physician resistance (physicians, APPs, nurses) and multidisciplinary role confusion (APPs, nurses, psychosocial). CONCLUSION: Pediatric clinicians recognize the potential value of an embedded PC model. Although some concepts overlapped, multidisciplinary clinicians offered unique beliefs, highlighting the importance of including representative perspectives to ensure that pediatric PC models align with priorities of diverse stakeholders.

CPX-351 induces remission in newly diagnosed pediatric secondary myeloid malignancies.

Secondary myelodysplastic syndromes and acute myeloid leukemia (sMDS/AML) are rare in children and adolescents and have a dismal prognosis. The mainstay therapy is hematopoietic cell transplantation (HCT), but there has been no innovation in cytoreductive regimens. CP X-351, a fixed 5:1 molar ratio of liposomal cytarabine to daunorubicin, has shown favorable safety and efficacy in elderly individuals with secondary AML and children with relapsed de novo AML. We report the outcomes of 7 young patients (6 with newly diagnosed sMDS/AML and 1 with primary MDS/AML) uniformly treated with CP X-351. Five patients had previously received chemotherapy for osteosarcoma, Ewing sarcoma, neuroblastoma, or T-cell acute lymphoblastic leukemia; 1 had predisposing genomic instability disorder (Cornelia de Lange syndrome) and 1 had MDS-related AML and multiorgan failure. The median age at diagnosis of myeloid malignancy was 17 years (range, 13-23 years). Patients received 1 to 3 cycles of CP X-351 (cytarabine 100 mg/m2 plus daunorubicin 44 mg/m2) on days 1, 3, and 5, resulting in complete morphologic remission without overt toxicity or treatment-related mortality. This approach allowed for adding an FLT3 inhibitor as individualized therapy in 1 patient. Six patients were alive and leukemia-free at 0.5 to 3.3 years after HCT. One patient died as a result of disease progression before HCT. To summarize, CP X-351 is an effective and well-tolerated regimen for cytoreduction in pediatric sMDS/AML that warrants prospective studies.

Evaluation of factors that influence anxiety and satisfaction in patients undergoing bronchofiberoscopy with analgosedation.

INTRODUCTION: Bronchofiberoscopy (BF) is a key tool used in the management of patients with respiratory diseases. Describing factors that contribute to patient anxiety surrounding BF has the potential to influence patient management and willingness to undergo the procedure again in the future if needed. OBJECTIVES: This study sought to understand what factors influence anxiety and satisfaction experienced by patients undergoing BF under conscious sedation. METHODS: This study had a prospective observational character and evaluated 463 consecutive patients undergoing BF. Participants were divided into two groups, those undergoing BF for the first time and those who had undergone the procedure at least once in the past. Data were collected from three questionnaires prepared by the research team. RESULTS: Patients who had undergone multiple bronchoscopies were more satisfied with their physician's explanation of the procedure (P < 0.0001), had a better understanding of the indications (P < 0.0001) and potential complications (P < 0.0001) of BF and knew what specific procedure was planned (P < 0.001). Patients undergoing BF for the first time experienced anxiety before the procedure more frequently (P < 0.001). No significant difference in satisfaction was observed between patient groups and 89% would agree to BF in the future. CONCLUSIONS: Patients who had previously undergone BF were better prepared for their procedure; however, satisfaction levels after the procedure were similar in both groups. Results suggest that medical staff should target patients who have not undergone BF previously to relieve anxiety.

Cornell Scale for Depression in Dementia.

This scale should be administered by a health professional with appropriate psychological training for maximum screening effect. It requires interview of an informant and observation of and interview with the client being screened. This scale is effective for clients both with and without cognitive impairment.

Comprehensive geriatric 1 assessment and the assessment of depression in the elderly.

As our population ages, the need to identify and manage risks to elderly people's health becomes more pressing.