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Dunham SJB, Avelar-Barragan J, Rothman JA, Adams ED, Faraci G, Forner S, Kawauchi S, Tenner AJ, Green KN, LaFerla FM, MacGregor GR, Mapstone M, Whiteson KL. Sex-specific associations between AD genotype and the microbiome of human amyloid beta knock-in (hAβ-KI) mice. Alzheimers Dement 2024. [PMID: 38572865 DOI: 10.1002/alz.13794] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2023] [Revised: 02/20/2024] [Accepted: 02/23/2024] [Indexed: 04/05/2024]
Abstract
INTRODUCTION Emerging evidence links changes in the gut microbiome to late-onset Alzheimer's disease (LOAD), necessitating examination of AD mouse models with consideration of the microbiome. METHODS We used shotgun metagenomics and untargeted metabolomics to study the human amyloid beta knock-in (hAβ-KI) murine model for LOAD compared to both wild-type (WT) mice and a model for early-onset AD (3xTg-AD). RESULTS Eighteen-month female (but not male) hAβ-KI microbiomes were distinct from WT microbiomes, with AD genotype accounting for 18% of the variance by permutational multivariate analysis of variance (PERMANOVA). Metabolomic diversity differences were observed in females, however no individual metabolites were differentially abundant. hAβ-KI mice microbiomes were distinguishable from 3xTg-AD animals (81% accuracy by random forest modeling), with separation primarily driven by Romboutsia ilealis and Turicibacter species. Microbiomes were highly cage specific, with cage assignment accounting for more than 40% of the PERMANOVA variance between the groups. DISCUSSION These findings highlight a sex-dependent variation in the microbiomes of hAβ-KI mice and underscore the importance of considering the microbiome when designing studies that use murine models for AD. HIGHLIGHTS Microbial diversity and the abundance of several species differed in human amyloid beta knock-in (hAβ-KI) females but not males. Correlations to Alzheimer's disease (AD) genotype were stronger for the microbiome than the metabolome. Microbiomes from hAβ-KI mice were distinct from 3xTg-AD mice. Cage effects accounted for most of the variance in the microbiome and metabolome.
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Affiliation(s)
- Sage J B Dunham
- Department of Molecular Biology & Biochemistry, University of California Irvine, Irvine, California, USA
| | - Julio Avelar-Barragan
- Department of Molecular Biology & Biochemistry, University of California Irvine, Irvine, California, USA
| | - Jason A Rothman
- Department of Molecular Biology & Biochemistry, University of California Irvine, Irvine, California, USA
| | - Eric D Adams
- Department of Molecular Biology & Biochemistry, University of California Irvine, Irvine, California, USA
| | - Gina Faraci
- Department of Molecular Biology & Biochemistry, University of California Irvine, Irvine, California, USA
| | - Stefania Forner
- Institute for Memory Impairments and Neurological Disorders (UCI MIND), University of California Irvine, Irvine, California, USA
| | - Shimako Kawauchi
- Department of Anatomy and Neurobiology, Developmental Biology Center, University of California Irvine, College of Medicine, Irvine, California, USA
| | - Andrea J Tenner
- Department of Molecular Biology & Biochemistry, Department of Neurobiology and Behavior, Department of Pathology and Laboratory Medicine, School of Medicine, Institute for Memory Impairments and Neurological Disorders (UCI MIND), University of California Irvine, Irvine, California, USA
| | - Kim N Green
- Institute for Memory Impairments and Neurological Disorders (UCI MIND), Department of Neurobiology and Behavior, School of Biological Sciences, Center for Neural Circuit Mapping, University of California Irvine, Irvine, California, USA
| | - Frank M LaFerla
- Institute for Memory Impairments and Neurological Disorders (UCI MIND), Department of Neurobiology and Behavior, University of California Irvine, Irvine, California, USA
| | - Grant R MacGregor
- Department of Developmental and Cell Biology, University of California Irvine, Irvine, California, USA
| | - Mark Mapstone
- Department of Neurology, University of California Irvine, Irvine, California, USA
| | - Katrine L Whiteson
- Department of Molecular Biology & Biochemistry, University of California Irvine, Irvine, California, USA
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Adams ED, Zaghiyan KN, Fleshner PR. End-to-end stapled technique for Kono-S anastomosis. Tech Coloproctol 2023; 27:1383-1386. [PMID: 37284973 PMCID: PMC10638207 DOI: 10.1007/s10151-023-02802-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2023] [Accepted: 04/07/2023] [Indexed: 06/08/2023]
Abstract
PURPOSE Our aim was to develop a Kono-S anastomotic technique using surgical staplers. METHODS Two patients underwent stapled Kono-S anastomosis, one via abdominal and one transanal approach. RESULTS The approach for an abdominal and transanal stapled Kono-S anastomosis is detailed. CONCLUSION The Kono-S anastomosis can be safely configured using common surgical staplers.
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Affiliation(s)
- E D Adams
- Department of General Surgery, Cedars-Sinai Medical Center, 8700 Beverly Blvd, North Tower, Suite 8215, Los Angeles, CA, 90048, USA.
| | - K N Zaghiyan
- Department of General Surgery, Cedars-Sinai Medical Center, 8700 Beverly Blvd, North Tower, Suite 8215, Los Angeles, CA, 90048, USA
- Division of Colorectal Surgery, Cedars-Sinai Medical Center, Los Angeles, USA
| | - P R Fleshner
- Department of General Surgery, Cedars-Sinai Medical Center, 8700 Beverly Blvd, North Tower, Suite 8215, Los Angeles, CA, 90048, USA
- Division of Colorectal Surgery, Cedars-Sinai Medical Center, Los Angeles, USA
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Rothman JA, Loveless TB, Kapcia J, Adams ED, Steele JA, Zimmer-Faust AG, Langlois K, Wanless D, Griffith M, Mao L, Chokry J, Griffith JF, Whiteson KL. RNA Viromics of Southern California Wastewater and Detection of SARS-CoV-2 Single-Nucleotide Variants. Appl Environ Microbiol 2021; 87:e0144821. [PMID: 34550753 PMCID: PMC8579973 DOI: 10.1128/aem.01448-21] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2021] [Accepted: 09/14/2021] [Indexed: 11/20/2022] Open
Abstract
Municipal wastewater provides an integrated sample of a diversity of human-associated microbes across a sewershed, including viruses. Wastewater-based epidemiology (WBE) is a promising strategy to detect pathogens and may serve as an early warning system for disease outbreaks. Notably, WBE has garnered substantial interest during the coronavirus disease 2019 (COVID-19) pandemic to track disease burden through analyses of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) RNA. Throughout the COVID-19 outbreak, tracking SARS-CoV-2 in wastewater has been an important tool for understanding the spread of the virus. Unlike traditional sequencing of SARS-CoV-2 isolated from clinical samples, which adds testing burden to the health care system, in this study, metatranscriptomics was used to sequence virus directly from wastewater. Here, we present a study in which we explored RNA viral diversity through sequencing 94 wastewater influent samples across seven wastewater treatment plants (WTPs), collected from August 2020 to January 2021, representing approximately 16 million people in Southern California. Enriched viral libraries identified a wide diversity of RNA viruses that differed between WTPs and over time, with detected viruses including coronaviruses, influenza A, and noroviruses. Furthermore, single-nucleotide variants (SNVs) of SARS-CoV-2 were identified in wastewater, and we measured proportions of overall virus and SNVs across several months. We detected several SNVs that are markers for clinically important SARS-CoV-2 variants along with SNVs of unknown function, prevalence, or epidemiological consequence. Our study shows the potential of WBE to detect viruses in wastewater and to track the diversity and spread of viral variants in urban and suburban locations, which may aid public health efforts to monitor disease outbreaks. IMPORTANCE Wastewater-based epidemiology (WBE) can detect pathogens across sewersheds, which represents the collective waste of human populations. As there is a wide diversity of RNA viruses in wastewater, monitoring the presence of these viruses is useful for public health, industry, and ecological studies. Specific to public health, WBE has proven valuable during the coronavirus disease 2019 (COVID-19) pandemic to track the spread of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) without adding burden to health care systems. In this study, we used metatranscriptomics and reverse transcription-droplet digital PCR (RT-ddPCR) to assay RNA viruses across Southern California wastewater from August 2020 to January 2021, representing approximately 16 million people from Los Angeles, Orange, and San Diego counties. We found that SARS-CoV-2 quantification in wastewater correlates well with county-wide COVID-19 case data, and that we can detect SARS-CoV-2 single-nucleotide variants through sequencing. Likewise, wastewater treatment plants (WTPs) harbored different viromes, and we detected other human pathogens, such as noroviruses and adenoviruses, furthering our understanding of wastewater viral ecology.
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Affiliation(s)
- Jason A. Rothman
- Department of Molecular Biology and Biochemistry, University of California, Irvine, Irvine, California, USA
| | - Theresa B. Loveless
- Department of Biomedical Engineering, University of California, Irvine, Irvine, California, USA
| | - Joseph Kapcia
- Department of Molecular Biology and Biochemistry, University of California, Irvine, Irvine, California, USA
| | - Eric D. Adams
- Department of Molecular Biology and Biochemistry, University of California, Irvine, Irvine, California, USA
| | - Joshua A. Steele
- Southern California Coastal Water Research Project, Costa Mesa, California, USA
| | | | - Kylie Langlois
- Southern California Coastal Water Research Project, Costa Mesa, California, USA
| | - David Wanless
- Southern California Coastal Water Research Project, Costa Mesa, California, USA
| | - Madison Griffith
- Southern California Coastal Water Research Project, Costa Mesa, California, USA
| | - Lucy Mao
- Southern California Coastal Water Research Project, Costa Mesa, California, USA
| | - Jeffrey Chokry
- Southern California Coastal Water Research Project, Costa Mesa, California, USA
| | - John F. Griffith
- Southern California Coastal Water Research Project, Costa Mesa, California, USA
| | - Katrine L. Whiteson
- Department of Molecular Biology and Biochemistry, University of California, Irvine, Irvine, California, USA
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Aidinian G, Fox CJ, White PW, Cox MW, Adams ED, Gillespie DL. Intravascular Ultrasound—Guided Inferior Vena Cava Filter Placement in the Military Multitrauma Patients: A Single-Center Experience. Vasc Endovascular Surg 2009; 43:497-501. [DOI: 10.1177/1538574409334824] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Background: High velocity fragments have resulted in a multitude of complex injuries in the military patients, placing them at increased risk of venous thromboembolism. Methods: A retrospective analysis was performed of all the intravascular ultrasound (IVUS)-guided bedside inferior vena cava (IVC) filters placed between August 2003 and October 2007. Results: Fourteen patients had bedside IVUS-guided retrievable filter placement. Thirteen males and one female and the mean (+SD) injury severity scores (ISS) was 37.2 (+9.9). The most common causes of injury were explosive devices (57%), gunshot wounds (28%), rocket-propelled grenades (7%), and motor vehicle crashes (7%). Indications for filter insertion were deep venous thrombosis in 36% of patients and pulmonary embolus in 28%. Thirty five percent had filters inserted prophylactically. Conclusions: Military trauma population ISS is considerably higher than what is reported in the civilian population. The bedside IVUS-guided IVC filter insertion is particularly useful in this population.
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Affiliation(s)
- Gilbert Aidinian
- Department of Surgery, Peripheral Vascular Surgery Service, Walter Reed Army Medical Center, Washington, D.C.,
| | - Charles J. Fox
- Department of Surgery, Peripheral Vascular Surgery Service, Walter Reed Army Medical Center, Washington, D.C
| | - Paul W. White
- Department of Surgery, Peripheral Vascular Surgery Service, Eisenhower Army Medical Center, Augusta, Georgia
| | - Mitchell W. Cox
- Department of Surgery, Peripheral Vascular Surgery Service, Walter Reed Army Medical Center, Washington, D.C
| | - Eric D. Adams
- Department of Surgery, Peripheral Vascular Surgery Service, Walter Reed Army Medical Center, Washington, D.C
| | - David L. Gillespie
- Department of Vascular Surgery, University of Rochester Medical Center, Rochester, New York
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Akimoto H, Xia JS, Candela D, Mullin WJ, Adams ED, Sullivan NS. Giant viscosity enhancement in a spin-polarized fermi liquid. Phys Rev Lett 2007; 99:095301. [PMID: 17931016 DOI: 10.1103/physrevlett.99.095301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/19/2007] [Indexed: 05/25/2023]
Abstract
The viscosity is measured for a Fermi liquid, a dilute 3He-4He mixture, under extremely high magnetic field/temperature conditions (B<or=14.8 T, T>or=1.5 mK). The spin-splitting energy microB is substantially greater than the Fermi energy kBTF; as a consequence the polarization tends to unity and s-wave quasiparticle scattering is suppressed for T<<TF. Using a novel composite vibrating-wire viscometer an enhancement of the viscosity is observed by a factor of more than 500 over its low-field value. Good agreement is found between the measured viscosity and theoretical predictions based upon a t-matrix formalism.
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Affiliation(s)
- H Akimoto
- Microkelvin Laboratory, NHMFL, and Physics Department, University of Florida, Gainesville, Florida 32611, USA
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Shapiro AJ, Adams ED. Inflammatory pseudotumor of the spleen managed laparoscopically. Can preoperative imaging establish the diagnosis? Case report and literature review. Surg Laparosc Endosc Percutan Tech 2007; 16:357-61. [PMID: 17057583 DOI: 10.1097/01.sle.0000213738.77654.02] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
BACKGROUND Inflammatory pseudotumor of the spleen, or inflammatory myofibroblastic tumor, is an uncommon condition easily mistaken for a malignant process. Patients may be asymptomatic or may present with nonspecific abdominal complaints. Mild constitutional symptoms have also been reported. The ability to diagnose this entity radiographically preoperatively may allow the uniform application of laparoscopy to manage this condition and spare patients open splenectomy. METHODS Chart review and literature review. RESULTS Inflammatory pseudotumor of the spleen was successfully managed laparoscopically. Preoperative evaluation suggested but could not confirm the diagnosis. CONCLUSIONS A hypovascular solid splenic mass by Doppler ultrasound or CT scan suggests the diagnosis of inflammatory pseudotumor. Stellate central calcifications seen on CT scan make the diagnosis very likely. Laparoscopic splenectomy can be used for definitive diagnosis and symptomatic relief with minimal morbidity and mortality.
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Affiliation(s)
- Andrew J Shapiro
- General Surgery Service, Bayne-Jones Army Community Hospital, Ft Polk, LA, USA.
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Quan RW, Adams ED, Cox MW, Eagleton MJ, Weber MA, Fox CJ, Gillespie DL. The Management of Trauma Venous Injury: Civilian and Wartime Experiences. ACTA ACUST UNITED AC 2006; 18:149-56. [PMID: 17060235 DOI: 10.1177/1531003506293452] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The management of venous trauma continues to be debated. Historically, ligation of injured veins is the most common modality of surgical treatment. In the past half-century, additional techniques have been used, including primary repair, interposition graft, and occasionally endovascular techniques. Venous repair, whether in the acute or chronic setting, is believed to prevent or ameliorate the complications of pain, edema, and phlegmasia. Venous repair in civilian trauma and in wartime is commonplace; however, overall treatment strategies remain largely unchanged since the Vietnam War.
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Affiliation(s)
- Reagan W Quan
- Vascular Surgery Service, Walter Reed Army Medical Center, Washington, DC 20307, USA.
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Pan W, Xia JS, Stormer HL, Tsui DC, Vicente CL, Adams ED, Sullivan NS, Pfeiffer LN, Baldwin KW, West KW. Quantization of the diagonal resistance: density gradients and the empirical resistance rule in a 2D system. Phys Rev Lett 2005; 95:066808. [PMID: 16090978 DOI: 10.1103/physrevlett.95.066808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/20/2005] [Indexed: 05/03/2023]
Abstract
We have observed quantization of the diagonal resistance, R(xx), at the edges of several quantum Hall states. Each quantized R(xx) value is close to the difference between the two adjacent Hall plateaus in the off-diagonal resistance, R(xy). Peaks in R(xx) occur at different positions in positive and negative magnetic fields. Practically all R(xx) features can be explained quantitatively by a 1%/cm electron density gradient. Therefore, R(xx) is determined by R(xy) and unrelated to the diagonal resistivity rho(xx). Our findings throw an unexpected light on the empirical resistivity rule for 2D systems.
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Affiliation(s)
- W Pan
- Sandia National Laboratories, Albuquerque, New Mexico 87185, USA
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Csáthy GA, Xia JS, Vicente CL, Adams ED, Sullivan NS, Stormer HL, Tsui DC, Pfeiffer LN, West KW. Tilt-induced localization and delocalization in the second Landau level. Phys Rev Lett 2005; 94:146801. [PMID: 15904089 DOI: 10.1103/physrevlett.94.146801] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2004] [Indexed: 05/02/2023]
Abstract
We have investigated the behavior of electronic phases of the second Landau level under tilted magnetic fields. The fractional quantum Hall liquids at nu=2+1/5 and 2+4/5 and the solid phases at nu=2.30, 2.44, 2.57, and 2.70 are quickly destroyed with tilt. This behavior can be interpreted as a tilt driven localization of the 2+1/5 and 2+4/5 fractional quantum Hall liquids and a delocalization through the melting of solid phases in the top Landau level, respectively. The evolution towards the classical Hall gas of the solid phases is suggestive of antiferromagnetic ordering.
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Affiliation(s)
- G A Csáthy
- Department of Electrical Engineering, Princeton University, Princeton, New Jersey 08544, USA
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Xia JS, Pan W, Vicente CL, Adams ED, Sullivan NS, Stormer HL, Tsui DC, Pfeiffer LN, Baldwin KW, West KW. Electron correlation in the second Landau level: a competition between many nearly degenerate quantum phases. Phys Rev Lett 2004; 93:176809. [PMID: 15525110 DOI: 10.1103/physrevlett.93.176809] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2004] [Indexed: 05/24/2023]
Abstract
At a very low-temperature of 9 mK, electrons in the second Landau level of an extremely high-mobility two-dimensional electron system exhibit a very complex electronic behavior. With a varying filling factor, quantum liquids of different origins compete with several insulating phases leading to an irregular pattern in the transport parameters. We observe a fully developed nu=2+2/5 state separated from the even-denominator nu=2+1/2 state by an insulating phase and a nu=2+2/7 and nu=2+1/5 state surrounded by such phases. A developing plateau at nu=2+3/8 points to the existence of other even-denominator states.
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Affiliation(s)
- J S Xia
- University of Florida, Gainesville, Florida 32611, USA
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Akimoto H, Candela D, Xia JS, Mullin WJ, Adams ED, Sullivan NS. New evidence for zero-temperature relaxation in a spin-polarized fermi liquid. Phys Rev Lett 2003; 90:105301. [PMID: 12689005 DOI: 10.1103/physrevlett.90.105301] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2002] [Indexed: 05/24/2023]
Abstract
Spin-echo experiments are reported for 3He-4He solutions under extremely high B/T conditions, B=14.75 T and T>or=1.73 mK. The 3He concentration x(3) was adjusted close to the value x(c) approximately 3.8% at which the spin-rotation parameter muM0 vanishes. In this way the transverse and longitudinal spin-diffusion coefficients D( perpendicular ),D( parallel ) were measured while keeping |muM(0)|<1. It is found that the temperature dependence of D( perpendicular ) deviates strongly from 1/T(2), with anisotropy temperature T(a)=4.26(+0.18)(-0.44) mK. This value is close to the theoretical prediction for dilute solutions and suggests that spin current relaxation remains finite as the temperature tends to zero.
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Affiliation(s)
- H Akimoto
- Physics Department, University of Massachusetts, Amherst, Massachusetts 01003, USA
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Wilkinson NW, Edwards K, Adams ED. Splenic infarction following laparoscopic Nissen fundoplication: management strategies. JSLS 2003; 7:359-65. [PMID: 14626404 PMCID: PMC3021344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/03/2022] Open
Abstract
Techniques for mobilizing the greater curve of the stomach during laparoscopic Nissen fundoplication (LNF) include division of the short gastric vessels (SGV). The splenic artery and vein lie directly posterior to the proper plane of dissection. Uncontrolled bleeding during SGV division places the splenic vessels at risk for inadvertent injury or ligation. We report herein on 2 patients referred to our institution who had left upper quadrant pain and radiographic evidence of segmental splenic infarction (SI) that resulted from a peripheral splenic artery branch injury during LNF. Management strategies included a trial of conservative management and splenectomy for persistent symptoms or complications resulting from SI. Intense inflammation and adhesion formation making laparoscopic splenectomy difficult should be anticipated when operating on the infarcted spleen.
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Affiliation(s)
- Neal W Wilkinson
- Department of Surgery, Eisenhower Army Medical Center, Fort Gordon, Georgia, USA.
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Matsunaga N, Shvarts VA, Adams ED, Xia JS, Schuberth EA. Novel magnetism in 3He nanoclusters. Phys Rev Lett 2001; 86:2365-2368. [PMID: 11289930 DOI: 10.1103/physrevlett.86.2365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2000] [Indexed: 05/23/2023]
Abstract
The magnetic susceptibility of 3He nanoclusters embedded in a 4He matrix has been measured from 0.5 to 10 mK at pressures from 2.88 to 3.54 MPa. Even the lowest pressure clusters have a solid fraction in the region of the phase diagram where bulk solid is unstable. At 3.54 MPa, straight theta = -250 microK, equal to that of bulk 3He for v = 21.3 cm3/mole. For 2.88 MPa, straight theta = 140 microK, indicating a ferromagnetic tendency, similar to 2D films at some coverages. At intermediate pressures, chi has a peak near 1.05 mK, but with no discontinuity. Magnetic ordering in nanoclusters appears to be different than the U2D2 phase of bulk 3He.
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Affiliation(s)
- N Matsunaga
- Center for Ultralow Temperature Research, Department of Physics, University of Florida, Gainesville 32611-8440, USA
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Adams ED, Haley RP, Ni W. Comment on "Nuclear Magnetic Ordering of 3He Clusters in Solid 4He". Phys Rev Lett 1996; 77:5308. [PMID: 10062768 DOI: 10.1103/physrevlett.77.5308] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Lang T, Moyland PL, Sergatskov DA, Adams ED, Takano Y. Observation of Ferromagnetic Ordering in hcp 3He. Phys Rev Lett 1996; 77:322-325. [PMID: 10062422 DOI: 10.1103/physrevlett.77.322] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
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Avenel O, Xu J, Xia JS, Xu MF, Andraka B, Lang T, Moyland PL, Ni W, Signore PJ, Adams ED, Ihas GG, Meisel MW, Nagler SE, Sullivan NS, Takano Y, Talham DR, Goto T, Fujiwara N. Low-temperature magnetic measurements of an S=1 linear-chain Heisenberg antiferromagnet. Phys Rev B Condens Matter 1992; 46:8655-8658. [PMID: 10002646 DOI: 10.1103/physrevb.46.8655] [Citation(s) in RCA: 27] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Avenel O, Xia JS, Andraka B, Jee CS, Xu MF, Qian YJ, Lang T, Moyland PL, Ni W, Signore PJ, Adams ED, Ihas GG, Meisel MW, Stewart GR, Sullivan NS, Takano Y. Magnetic measurements of CeAl3 to below 1 mK. Phys Rev B Condens Matter 1992; 45:5695-5698. [PMID: 10000294 DOI: 10.1103/physrevb.45.5695] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/12/2023]
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Nwanyanwu OC, Moore JS, Adams ED. Parasitic infections in Asian refugees in Fort Worth. Tex Med 1989; 85:42-5. [PMID: 2595611] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
This report describes parasitic infections recorded from April 1984 to December 1987 in refugees using services of the Fort Worth-Tarrant County Public Health Department. Infections with 1,601 parasitic infections were documented in 824 laboratory specimens obtained from refugees. Ascariasis and giardiasis were more prevalent than other parasitic infections. The highest attack rates occurred in refugees from Cambodia (70.0%), Laos (69.7%), and Vietnam (54.3%). Information from this study supports published data on high attack rates and endemicity of infections in refugees from Southeast Asia. Continued surveillance and treatment of these refugees should improve their health conditions and prevent the development of endemic foci in the United States.
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Abstract
Vibrio cholerae bacteremia occurred in a patient with cirrhosis after placement of a LeVeen shunt. At the time of bacteremia, cultures of peritoneal fluid were negative and fluid dynamics did not suggest spontaneous bacterial peritonitis. Despite apparent successful treatment of the bacteremia, relapse and death occurred with culture positivity of peritoneal fluid for V. cholerae. Simultaneously, blood cultures were positive for Klebsiella pneumoniae. Agglutination studies demonstrated the V. cholerae to be a non-01 strain. Insertion of a LeVeen shunt, which bypasses the hepatic clearance mechanisms, appeared to have allowed bacteremia to occur with this bacterium that is rarely isolated from blood. In patients with LeVeen shunts, bacteremia with noninvasive pathogens may occur, and in coastal areas, Vibrios should be considered when bacteremia occurs.
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Abstract
It is important to give the patient a denture that is clean and free from cross-contamination. This study was made to determine if Clorox could be used as a rapid, safe, and clinically effective way to sterilize complete dentures. The data obtained from this study indicate that a 5-minute immersion of dentures in undiluted Clorox accomplished sterilization against a variety of microorganisms, including a spore-forming bacteria and C. albicans.
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Abstract
An isolate of Pseudomonas aeruginosa lacking characteristic indophenol oxidase was recovered from a catheterized urine specimen.
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Adams ED, Cooper BH. Evaluation of a modified Wickerham medium for identifying medically important yeasts. Am J Med Technol 1974; 40:377-88. [PMID: 4413293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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