31,943 results match your criteria: "AMC; Kaiser Permanente Washington Health Research Institute[Affiliation]"

Local field potential (LFP) recordings using chronically implanted sensing-enabled stimulators are a powerful tool for indexing symptom presence and severity in neurological and neuropsychiatric disorders, and for enhancing our neurophysiological understanding of brain processes. LFPs have gained interest as input signals for closed-loop deep brain stimulation (DBS) and can be used to inform DBS parameter selection. LFP recordings using chronically implanted sensing-enabled stimulators have various implementational challenges.

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Mediation of modifiable risk factors in two multidomain dementia prevention trials.

Alzheimers Dement

January 2025

Department of Public and Occupational Health, Amsterdam UMC Location VUMC, Amsterdam, the Netherlands.

Introduction: We explored which dementia risk factors in two multidomain prevention trials mediate beneficial, neutral, or counteracting effects on dementia incidence.

Methods: We pooled data from the multidomain MAPT (Multidomain Alzheimer Preventive Trial; n = 1679, up to 5-year follow-up) and preDIVA trials (Prevention of Dementia by Intensive Vascular Care; n = 3526, up to 12-year follow-up) in adults aged 70+. We used multiple mediation analysis to quantify the role of 2-year changes in body mass index, systolic blood pressure, total cholesterol, and physical activity in the intervention effects on dementia incidence.

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The Presence of a Shelter in an Open Field Test Has Differential Effects on the Behavior and Stress Response of Two Mouse Species.

J Exp Zool A Ecol Integr Physiol

January 2025

Departamento de Biologia, Faculdade de Ciências, Universidade de Lisboa, Lisboa, Portugal.

The open field test (OFT) is frequently used in research to assess anxiety-like behavior and locomotor activity. Its simple design can lead to the misconception that it is a standardized procedure comparable between laboratories. However, some modifications in the setup can cause changes in behavior.

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Early achievement of hemostasis defined by transfusion velocity: A possible mechanism for whole blood survival benefit.

J Trauma Acute Care Surg

January 2025

From the Department of Surgery (A.M.C., L.V., A.L.C.), University of Pittsburgh; University of Pittsburgh School of Public Health (J.F.L., S.R.W.); Department of Emergency Medicine (F.X.G.), University of Pittsburgh, Pittsburgh, Pennsylvania; Department of Surgery (B.A.C.), University of Texas Health Science Center, Houston, Texas; Department of Surgery (J.W.C.), University of Pennsylvania, Philadelphia, Pennsylvania; Department of Surgery (M.A.S.), Oregon Health & Science University, Portland, Oregon; Department of Surgery (E.E.M.), Ernest E. Moore Shock Trauma Center at Denver Health, University of Colorado Health Sciences Center, Denver, Colorado; Department of Surgery (N.N.), University of Miami/Jackson Memorial Hospital, Miami, Florida; Department of Surgery (J.P.M.), University of Texas Southwestern Medical Center, Dallas, Texas; and Department of Pathology (M.H.Y.), Department of Radiology (V.A.), and Trauma and Transfusion Medicine Research Center, Department of Surgery (J.B.B., C.M.L., M.D.N., R.M.F., J.L.S.), University of Pittsburgh, Pittsburgh, Pennsylvania.

Introduction: Whole blood resuscitation is associated with survival benefits in observational cohort studies. The mechanisms responsible for outcome benefits have not been adequately determined. We sought to characterize the achievement of hemostasis across patients receiving early whole blood versus component resuscitation.

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Objectives: To assess the predictive value of magnetic resonance imaging for vesicovaginal fistula development in cervical cancer patients with bladder invasion treated with definitive chemoradiotherapy.

Methods: A retrospective review was conducted of the medical records of 43 cervical cancer patients with bladder invasion between 1999 and 2015. Bladder invasion was confirmed through magnetic resonance imaging (scores ≥3) or cystoscopic findings, with or without biopsy.

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Aim: To carry out a detailed study of existing positions in the French public of the acceptability of refusing treatment because of alleged futility, and to try to link these to people's age, gender, and religious practice.

Method: 248 lay participants living in southern France were presented with 16 brief vignettes depicting a cancer patient at the end of life who asks his doctor to administer a new cancer treatment he has heard about. Considering that this treatment is futile in the patient's case, the doctor refuses to prescribe it.

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Acute on chronic stress fracture after a medial malleolar osteotomy following osteochondral lesion of the talus treatment.

BMJ Case Rep

January 2025

Orthopaedic Surgery and Sports Medicine, Amsterdam UMC Location AMC, Amsterdam, The Netherlands.

A patient in his 40s presented at the outpatient clinic with sudden pain and swelling over his medial malleolus, 16 weeks after he had undergone osteoperiosteal autografting with a medial malleolar osteotomy for his tertiary osteochondral lesion of the talus. Postoperatively, the patient was treated using the regular evidence-based rehabilitation protocol of 5 weeks of non-weight-bearing and 5 weeks of partial weight-bearing. However, after the confirmed radiological union the patient experienced an acute on chronic stress fracture through the osteotomy line.

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Purpose: To evaluate the measurement of main pancreatic duct (MPD) diameter on MRI for predicting MPD involvement in intraductal papillary mucinous neoplasms (IPMN).

Methods: This retrospective study included 595 patients with surgically confirmed IPMN who underwent preoperative MRI from 2015 to 2022. Three independent readers measured the maximum MPD diameter on two-dimensional axial and coronal T2-weighted imaging.

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Pre-Clinical Rationale for Amcenestrant Combinations in HER2+/ER+ Breast Cancer.

Int J Mol Sci

January 2025

Cancer Biotherapeutics Research Group, Life Sciences Institute, School of Biotechnology, Dublin City University, Dublin 9, D09 NR58 Dublin, Ireland.

HER2-positive/oestrogen receptor-positive (HER2+/ER+) represents a unique breast cancer subtype. The use of individual HER2- or ER-targeting agents can lead to the acquisition of therapeutic resistance due to compensatory receptor crosstalk. New drug combinations targeting HER2 and ER could improve outcomes for patients with HER2+/ER+ breast cancer.

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Machine learning based quantitative pain assessment for the perioperative period.

NPJ Digit Med

January 2025

Department of Anesthesiology and Pain Medicine, Asan Medical Center, University of Ulsan College of Medicine, Seoul, 05505, Republic of Korea.

This study developed and evaluated a model for assessing pain during the surgical period using photoplethysmogram data from 242 patients. Pain levels were measured at 2 min intervals using a numerical rating scale or clinical criteria: preoperative, before and after intubation, before and after skin incision, and postoperative. Key features from the photoplethysmography waveform were extracted to build XGBoost-based models for intraoperative and postoperative pain assessment.

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Purpose: The aim was to assess the long-term functional outcome and quality of life after staged surgical treatment of complex Lisfranc and Chopart injuries in a patient cohort, and to perform a systematic review of the literature.

Methods: A retrospective cohort of all trauma patients with complex Lisfranc and/or Chopart injuries treated at our level 1 trauma center between July 1, 2010, and July 1, 2020 with ≥ 3 years follow-up was analyzed in terms of management, complications, and patient-reported outcomes (American Orthopaedic Foot & Ankle Society midfoot score, AOFAS and Foot Function Index, FFI). A systematic review of the literature (according to PRISMA 2020 guidelines) was performed of studies published between January 2000 to April 2024.

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Introduction: Trauma patients frequently may be transported significant distance to receive care at a level one trauma center. Increasing distance may cause delays in care. We sought to investigate whether distance traveled for level 1 trauma care affected rates of intervention for renal trauma.

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Newborn screening and the screening laboratory: past, present and future.

Eur Thyroid J

January 2025

A Heijboer, Department of Laboratory Medicine, Endocrine Laboratory, Amsterdam, 1105AZ, Netherlands.

Thyroid hormone (TH) is essential for brain development in utero and during the first two to three years of life. The negative effects of TH deficiency on brain development are irreversible. Early detection of TH deficiency in neonates (congenital hypothyroidism (CH) through newborn screening (NBS)) allows for early treatment, thereby preventing brain damage.

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Reproducibility and Consistency of Isolation Protocols for Fibroblasts, Smooth Muscle Cells, and Epithelial Cells from the Human Vagina.

Cells

January 2025

Reproductive Biology Laboratory, Amsterdam UMC-Location AMC, Meibergdreef 9, 1105 AZ Amsterdam, The Netherlands.

(1) Background: For the reconstruction of a human vagina, various surgical procedures are available that are often associated with complications due to their failure to mimic the physiology of the human vagina. We recently developed a vascularized, organ-specific matrix from healthy human vaginal wall tissue with suitable biomechanical properties. A superior graft would require further extensive colonization with autologous vaginal cells to reduce complications upon implantation.

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Aim And Background: This study aimed to evaluate the efficacy of silymarin in improving liver function and reducing liver stiffness in chronic liver disease (CLD) patients. Silymarin, a hepatoprotective agent, has shown potential benefits in non-alcoholic fatty liver disease (NAFLD) and liver fibrosis, but evidence in CLD with varied etiologies remains limited. This study addresses the gap by assessing its impact across diverse etiological subgroups.

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Atopic dermatitis (AD) is characterized by dysregulated T cell immunity and skin microbiome dysbiosis with predominance of Staphylococcus aureus, which is associated with exacerbating AD skin inflammation. Specific glycosylation patterns of S. aureus cell wall structures amplify skin inflammation through interaction with Langerhans cells (LCs).

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Objectives: To determine the effectiveness of 2.7 mm plates in treating both bone forearm fractures (BBFFs) compared to the current gold standard of 3.5 mm fixation.

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Background And Objectives: The Allergic Rhinitis and its Impact on Asthma (ARIA) guidelines classify rhinitis as "intermittent" or "persistent" and "mild" or "moderate-severe". To assess ARIA classes in a real-world study in terms of phenotypic differences and their association with asthma.

Methods: We performed a cross-sectional real-world study based on users of the MASK-air® app who reported data for at least 3 different months.

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Immune checkpoint blockade (ICB) therapies have emerged as a promising avenue for the treatment of various cancers. Despite their success, the efficacy of these treatments is variable across patients and cancer types. Numerous single-cell RNA-sequencing (scRNA-seq) studies have been conducted to unravel cell-specific responses to ICB treatment.

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Objective: We aim to assess which variables are associated with recruitment failure of obstetrical and gynaecological randomised controlled trials (RCTs), leading to an extension of the study period.

Design: Nationwide study.

Setting: A cohort of RCTs supported by the trial centre of the Dutch Consortium of Obstetrics and Gynaecology.

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Subglottic cysts and hemangiomas are rare but potentially life-threatening conditions in pediatric patients. Subglottic cysts are generally associated with premature infants with a history of prolonged endotracheal intubation, while subglottic hemangiomas are congenital vascular lesions that grow rapidly and are uncommon head and neck tumours in pediatric patients. Both conditions can present with generalised respiratory symptoms such as stridor.

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Wall teichoic acid glycosylation of bovine-associated Staphylococcus aureus strains.

Vet Microbiol

January 2025

Department Population Health Sciences, Division Farm Animal Health, Utrecht University, Utrecht, the Netherlands. Electronic address:

Staphylococcus aureus (S. aureus) is one of the major causes of bovine mastitis, a disease with detrimental effects on health and wellbeing. Current control measures are costly, laborious and not always effective in eradicating S.

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Introduction: Surgical site infection (SSI) after lower extremity (LE) bypass surgery is associated with longer length of stay, higher hospital cost, increased morbidity, and even graft loss. Silver impregnated dressings have been used by other surgical subspecialties to decrease SSI with reported success. The National Surgical Quality Improvement Program (NSQIP) published a national expected rate of 7.

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[Shaking hands or not after the COVID pandemic?].

Ned Tijdschr Geneeskd

January 2025

Universiteit van Amsterdam, faculteit der Maatschappij- en Gedragswetenschappen, afd. Antropologie, Amsterdam.

The tradition of physicians to shake hands with patients is controversial due to the risk of transmitting germs and because of cultural sensitivity. Nevertheless, handshaking is a common way of greeting in Western culture, although some patients prefer not to shake hands for religious or cultural reasons. It is also known that a handshake can transmit pathogenic microorganisms.

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