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https://www.readbyqxmd.com/read/28106446/exacerbating-the-cosmological-constant-problem-with-interacting-dark-energy-models
#1
M C David Marsh
Future cosmological surveys will probe the expansion history of the Universe and constrain phenomenological models of dark energy. Such models do not address the fine-tuning problem of the vacuum energy, i.e., the cosmological constant problem (CCP), but can make it spectacularly worse. We show that this is the case for "interacting dark energy" models in which the masses of the dark matter states depend on the dark energy sector. If realized in nature, these models have far-reaching implications for proposed solutions to the CCP that require the number of vacua to exceed the fine-tuning of the vacuum energy density...
January 6, 2017: Physical Review Letters
https://www.readbyqxmd.com/read/28104133/liver-transplantation-for-biliary-rhabdomyosarcoma-with-liver-metastasis-report-of-one-case
#2
C-H Shen, K-R Dong, Y-F Tao, G Chen, R-D Li, Q-B Zhang, X-F Zhang, S Zheng, Z-X Wang
BACKGROUND: Liver transplantation in combination with chemotherapy in postoperative biliary rhabdomyosarcoma recurrence of children was evaluated. METHODS: An 8-year-old girl with biliary rhabdomyosarcoma underwent pancreatico-duodenectomy with postoperative vincristine (VCR), adriamycin (Act-D), and cyclophosphamide (CTX) (VAC chemotherapy) (VCR, 1 mg; Act-D, 0.7 mg; CTX, 1500 mg). Two years later, liver metastasis in the left and right lobes was found and was followed by VAC chemotherapy (CTX, 1800 mg; Act-D, 0...
January 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/28099974/temporary-vacuum-assisted-closure-of-the-open-abdomen-in-neonates
#3
Kengo Hattori, Alp Numanoglu, Sharon Cox
Introduction The need for open abdomen in the treatment of severely ill neonates will increase in time as more complex abdominal procedures are undertaken. However, the experience of temporary closure of an open abdomen using vacuum-assisted closure (VAC) system is still relatively limited in premature and term neonates. The aim of this study is to describe and review our experience in the use of temporary VAC of the open abdomen for neonates with varying pathological processes. Materials and Methods A retrospective folder review of all neonates treated with VAC for open abdomen over the study period of 2010 to 2014 at our institution was performed...
January 18, 2017: European Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/28050534/the-use-of-negative-pressure-wound-therapy-in-the-treatment-of-infected-wounds-case-studies
#4
Daniel de Alcântara Jones, Wilson Vasconcelos Neves Filho, Janice de Souza Guimarães, Daniel de Araújo Castro, Antonio Marcos Ferracini
OBJECTIVE: To evaluate the results and benefits obtained from the topical use of negative pressure wound therapy (NPWT) in patients with infected wounds. METHODS: This was a retrospective study of 20 patients (17 males and three females, mean age 42 years) with infected wounds treated using NPWT. The infected wounds were caused by trauma. The treatment system used was VAC.(®) (Vacuum Assisted Closure, KCI, San Antonio, United States) applied to the wound in continuous mode from 100 to 125 mmHg...
November 2016: Revista Brasileira de Ortopedia
https://www.readbyqxmd.com/read/28002184/prevalence-and-predictors-of-hospitalizations-among-hiv-infected-and-at-risk-hiv-uninfected-women
#5
Anna L Hotton, Kathleen M Weber, Ronald C Hershow, Kathryn Anastos, Peter Bacchetti, Elizabeth T Golub, Deborah Gustafson, Alexandra M Levine, Mary Young, Mardge H Cohen
OBJECTIVES: We evaluated the Veterans Aging Cohort Study (VACS) Index score, an index composed of age, CD4 count, viral load, hemoglobin, Hepatitis C (HCV) co-infection, Fibrosis Index-4 (FIB-4), and estimated glomerular filtration rate (EGFR), and psychosocial and clinical risk factors for all-cause hospitalization among HIV-infected women on HAART and HIV-uninfected women. METHODS: Data were collected from 2008 - 2014 from 1585 HAART-experienced HIV-infected and 692 uninfected women...
December 17, 2016: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/27987640/how-to-get-cost-effectiveness-analysis-right-the-case-of-vaccine-economics-in-latin-america
#6
Amanda Glassman, Oscar Cañón, Rachel Silverman
BACKGROUND: In middle-income countries, vaccines against pneumococcal disease, rotavirus, and human papilloma virus are in general more costly, not necessarily cost saving, and less consistently cost-effective than earlier generation vaccines against measles, diphtheria, tetanus, and pertussis. Budget impact is also substantial; public spending on vaccines in countries adopting new vaccines is, on average, double the amount of countries that have not adopted. Policymakers must weigh the costs and benefits of the adoption decision carefully, given the low coverage of other kinds of cost-effective health and nonhealth interventions in these same settings and relatively flat overall public spending on health as a share of gross domestic product (GDP) over time...
December 2016: Value in Health: the Journal of the International Society for Pharmacoeconomics and Outcomes Research
https://www.readbyqxmd.com/read/27982331/comparative-study-of-abdominal-cavity-temporary-closure-techniques-for-damage-control
#7
Marcelo A F Ribeiro, Emily Alves Barros, Sabrina Marques DE Carvalho, Vinicius Pereira Nascimento, José Cruvinel, Alexandre Zanchenko Fonseca
The damage control surgery, with emphasis on laparostomy, usually results in shrinkage of the aponeurosis and loss of the ability to close the abdominal wall, leading to the formation of ventral incisional hernias. Currently, various techniques offer greater chances of closing the abdominal cavity with less tension. Thus, this study aims to evaluate three temporary closure techniques of the abdominal cavity: the Vacuum-Assisted Closure Therapy - VAC, the Bogotá Bag and the Vacuum-pack. We conducted a systematic review of the literature, selecting 28 articles published in the last 20 years...
September 2016: Revista do Colégio Brasileiro de Cirurgiões
https://www.readbyqxmd.com/read/27979727/effects-of-heat-pretreatment-of-starch-on-graft-copolymerization-reaction-and-performance-of-resulting-starch-based-wood-adhesive
#8
Xianyu Zheng, Li Cheng, Zhengbiao Gu, Yan Hong, Zhaofeng Li, Caiming Li
In this study, effects of starch heat pretreatment at 70, 80 and 90°C on graft copolymerization reaction with vinyl acetate (VAc) and the performance of the resulting starch-based wood adhesive (SWA) were investigated. It was shown that SWA pretreated at 90°C achieved the best performance. At this temperature, the bonding capacity improved by 17.84% compared to the adhesive synthesized without heat pretreatment and the viscosity increased by 18.16% after 7 free-thaw cycles, much better than other samples...
December 12, 2016: International Journal of Biological Macromolecules
https://www.readbyqxmd.com/read/27975008/successful-treatment-of-pyoderma-gangrenosum-after-augmentation-mastopexy-using-vacuum-therapy
#9
Julio Alberto Soncini, Alessandra Grassi Salles, Juvenal Antonio Frizzo Neto, Rolf Gemperli
BACKGROUND: Pyoderma gangrenosum (PG) is a rare, severe, destructive neutrophilic dermatosis characterized by a progressive, necrotizing process after skin injury. Its cause is still unknown, and diagnosis represents a challenge when ulcers are seen after surgery. Bacterial infection is not found in the wounds. Patients exhibit "pathergy" with the appearance of new lesions after local trauma such as surgical procedures, debridements, and wound care, suggesting altered inflammatory response...
November 2016: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/27932078/the-utility-of-vacuum-assisted-closure-therapy-for-skin-necrosis-secondary-to-cervical-abscess-in-the-elderly
#10
Tadataka Tsuji, Koichi Satoh, Emi Okuno, Akiko Sobue, Yoshiya Nishide, Susumu Tanaka, Mikihiko Kogo
Vacuum-assisted closure (VAC) systems have been used as negative-pressure dressings in various fields, including decubitus ulcer, trauma, and wound dehiscence. To the best of our knowledge, few reports have examined the utility of VAC therapy for neck abscess in an oldest-old patient. We present here a rare case of neck abscess secondary to parotid abscess, resulting in extensive skin necrosis. Successful management included emergency drainage following epithelial induction through a VAC system without using skin grafting...
December 5, 2016: Auris, Nasus, Larynx
https://www.readbyqxmd.com/read/27922854/identification-of-hiv-infection-related-dna-methylation-sites-and-advanced-epigenetic-aging-in-hiv-treatment-na%C3%A3-ve-u-s-veterans
#11
Kristin N Nelson, Qin Hui, David Rimland, Ke Xu, Matthew S Freiberg, Amy C Justice, Vincent C Marconi, Yan V Sun
OBJECTIVE: HIV-positive individuals are at higher risk than healthy persons for aging-related diseases, including myocardial infarction and non-AIDS defining cancers. Recent evidence suggests that HIV infection may modulate changes in the host cell epigenome, and these changes represent a potential mechanism through which HIV infection accelerates aging. We assessed the difference in DNAm age, an aging marker involving multiple age-related CpG sites, among antiretroviral treatment (ART) naïve HIV-positive and HIV-negative individuals in a cohort of veterans from the Veterans Aging Cohort Study (VACS)...
December 5, 2016: AIDS
https://www.readbyqxmd.com/read/27919634/a-commercial-porcine-circovirus-pcv-type-2a-based-vaccine-reduces-pcv2d-viremia-and-shedding-and-prevents-pcv2d-transmission-to-na%C3%A3-ve-pigs-under-experimental-conditions
#12
Tanja Opriessnig, Chao-Ting Xiao, Patrick G Halbur, Priscilla F Gerber, Shannon R Matzinger, Xiang-Jin Meng
Porcine circovirus type 2 (PCV2) vaccination has been effective in protecting pigs from clinical disease and today is used extensively. Recent studies in vaccinated populations indicate a major PCV2 genotype shift from the predominant PCV2 genotype 2b towards 2d. The aims of this study were to determine the ability of the commercial inactivated PCV2a vaccine Circovac® to protect pigs against experimental challenge with a 2013 PCV2d strain and prevent transmission. Thirty-eight pigs were randomly divided into four groups with 9-10 pigs per group: NEG (sham-vaccinated, sham-challenged), VAC (PCV2a-vaccinated, sham-challenged), VAC+CHAL (PCV2a-vaccinated and PCV2d-challenged), and CHAL (sham-vaccinated, PCV2d-challenged)...
January 5, 2017: Vaccine
https://www.readbyqxmd.com/read/27917737/a-pediatric-approach-to-ventilator-associated-events-surveillance
#13
Noelle M Cocoros, Gregory P Priebe, Latania K Logan, Susan Coffin, Gitte Larsen, Philip Toltzis, Thomas J Sandora, Marvin Harper, Julia S Sammons, James E Gray, Donald Goldmann, Kelly Horan, Michael Burton, Paul A Checchia, Matthew Lakoma, Shannon Sims, Michael Klompas, Grace M Lee
OBJECTIVE Adult ventilator-associated event (VAE) definitions include ventilator-associated conditions (VAC) and subcategories for infection-related ventilator-associated complications (IVAC) and possible ventilator-associated pneumonia (PVAP). We explored these definitions for children. DESIGN Retrospective cohort SETTING Pediatric, cardiac, or neonatal intensive care units (ICUs) in 6 US hospitals PATIENTS Patients ≤18 years old ventilated for ≥1 day METHODS We identified patients with pediatric VAC based on previously proposed criteria...
December 5, 2016: Infection Control and Hospital Epidemiology
https://www.readbyqxmd.com/read/27912792/evaluation-of-natural-porcine-circovirus-type-2-pcv2-subclinical-infection-and-seroconversion-dynamics-in-piglets-vaccinated-at-different-ages
#14
Salvador Oliver-Ferrando, Joaquim Segalés, Sergio López-Soria, Antonio Callén, Olivier Merdy, François Joisel, Marina Sibila
This study aimed to determine the porcine circovirus type 2 (PCV2) serological and virological dynamics in piglets vaccinated at different ages in a PCV2 subclinical infection (PCV2-SI) scenario. Six hundred and forty-four 2 week-old healthy piglets were selected and distributed into four treatment groups: vaccination at 3, 6 or 10 weeks of age (3W-VAC, 6W-VAC and 10W-VAC groups, respectively) and unvaccinated pigs (NON-VAC group). Blood (n = 112 pigs) and oral fluid (OF) (n = 40 pens) samples were taken throughout the study to assess PCV2 load, humoral immunity and viral genotyping...
December 3, 2016: Veterinary Research
https://www.readbyqxmd.com/read/27901277/negative-pressure-wound-therapy-for-prevention-and-treatment-of-surgical-site-infections-after-vascular-surgery
#15
REVIEW
S Acosta, M Björck, A Wanhainen
BACKGROUND: Indications for negative-pressure wound therapy (NPWT) in vascular surgical patients are expanding. The aim of this review was to outline the evidence for NPWT on open and closed wounds. METHODS: A PubMed, EMBASE and Cochrane Library search from 2007 to June 2016 was performed combining the medical subject headings terms 'wound infection', 'abdominal aortic aneurysm (AAA)', 'fasciotomy', 'vascular surgery' and 'NPWT' or 'VAC'. RESULTS: NPWT of open infected groin wounds was associated with shorter duration of wound healing by 47 days, and was more cost-effective than alginate dressings in one RCT...
November 30, 2016: British Journal of Surgery
https://www.readbyqxmd.com/read/27899275/immunological-consequences-of-immunization-with-tumor-lysate-vaccine-and-propranolol-as-an-adjuvant-a-study-on-cytokine-profiles-in-breast-tumor-microenvironment
#16
Somayeh Ashrafi, Reza Shapouri, Mehdi Mahdavi
In this study, we sought out to study the anti-cancer effects of propranolol (Pro) in combination with tumor lysate vaccine on lymphocyte proliferation activities as well as on IL-2, IL-4, IL-10, IL-12, IL-17 and IFN-γ cytokine concentration in the tumor microenvironment (TME). A tumor model was established in inbred Balb/C mice using transplantation of tumor to the flank of native mice. Tumor-bearing mice were immunized with lysate tumor cells (vaccine), a combination of Pro/Vaccine (Vac). Control groups consisted of tumor-bearing mice receiving only propranolol or PBS three times with one week interval via subcutaneous (s...
November 27, 2016: Immunology Letters
https://www.readbyqxmd.com/read/27884322/vac-instillation-therapy-in-abdominal-mesh-exposure-a-novel-indication
#17
Angela Garcia-Ruano, Esther Deleyto, Sebastian Garcia-Fernandez
BACKGROUND: Defects of the abdominal wall pose a problem for general surgeons that negatively affects patient prognosis. In cases of abdominal wall wound dehiscence and exposed abdominal mesh, conservative treatment has not been proven effective to date. We aimed to study patient outcomes in cases of abdominal wall wound dehiscence with mesh exposure treated with vacuum-assisted closure system with intermittent instillation (VAC-instillation) as a temporary cover to achieve wound closure...
December 2016: Journal of Surgical Research
https://www.readbyqxmd.com/read/27876616/the-starting-treatment-for-ethanol-in-primary-care-trials-step-trials-protocol-for-three-parallel-multi-site-stepped-care-effectiveness-studies-for-unhealthy-alcohol-use-in-hiv-positive-patients
#18
E Jennifer Edelman, Stephen A Maisto, Nathan B Hansen, Christopher J Cutter, James Dziura, Lynn E Fiellin, Patrick G O'Connor, Roger Bedimo, Cynthia Gibert, Vincent C Marconi, David Rimland, Maria C Rodriguez-Barradas, Michael S Simberkoff, Amy C Justice, Kendall J Bryant, David A Fiellin
Unhealthy alcohol use is common among HIV-positive patients, yet effective evidence-based treatments are rarely provided in clinical settings providing HIV care. Further, given patient variability in response to initial treatments, stepped care approaches may be beneficial. We describe the rationale, aims and study design for the current StartingTreatment forEthanol inPrimary care Trials (STEP Trials); three parallel randomized controlled effectiveness trials being conducted in five Infectious Disease Clinics...
January 2017: Contemporary Clinical Trials
https://www.readbyqxmd.com/read/27876202/an-interferon-inducing-porcine-reproductive-and-respiratory-syndrome-virus-vaccine-candidate-elicits-protection-against-challenge-with-the-heterologous-virulent-type-2-strain-vr-2385-in-pigs
#19
Eve Fontanella, Zexu Ma, Yanjin Zhang, Alessandra M M G de Castro, Huigang Shen, Patrick G Halbur, Tanja Opriessnig
Achieving consistent protection by vaccinating pigs against porcine reproductive and respiratory syndrome virus (PRRSV) remains difficult. Recently, an interferon-inducing PRRSV vaccine candidate strain A2MC2 was demonstrated to be attenuated and induced neutralizing antibodies. The objective of this study was to determine the efficacy of passage 90 of A2MC2 (A2P90) to protect pigs against challenge with moderately virulent PRRSV strain VR-2385 (92.3% nucleic acid identity with A2MC2) and highly virulent atypical PRRSV MN184 (84...
January 3, 2017: Vaccine
https://www.readbyqxmd.com/read/27833769/first-case-report-of-a-late-onset-knee-periprosthetic-joint-infection-caused-by-lactococcus-garvieae
#20
V-I Neagoe, S Zytoun, H-J Neuhaus
Lactococcus garvieae is known as a Gram-positive, catalase-negative, and facultatively anaerobic fish pathogen. The association between Lactococcus spp. and human infectious diseases is described as being mainly associated with lumbar osteomyelitis, hepatic abscess, and infective endocarditis. In the literature of orthopedic post-prosthetic infections, L. garvieae was associated with a case of hip prosthetic infection in a fishmonger woman. We present the case of a 79-year-old male patient with multiple comorbidities, who is admitted to our center with a 5-day history of pain, swelling, and motility disorder of the right knee by the presence of a bicondylar knee replacement surgery, which was performed due to gonarthrosis 17 years ago...
2016: Case Reports in Orthopedics
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