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https://www.readbyqxmd.com/read/28542444/regional-brain-amyloid-%C3%AE-accumulation-associates-with-domain-specific-cognitive-performance-in-parkinson-disease-without-dementia
#1
Rizwan S Akhtar, Sharon X Xie, Yin J Chen, Jacqueline Rick, Rachel G Gross, Ilya M Nasrallah, Vivianna M Van Deerlin, John Q Trojanowski, Alice S Chen-Plotkin, Howard I Hurtig, Andrew D Siderowf, Jacob G Dubroff, Daniel Weintraub
Parkinson disease patients develop clinically significant cognitive impairment at variable times over their disease course, which is often preceded by milder deficits in memory, visuo-spatial, and executive domains. The significance of amyloid-β accumulation to these problems is unclear. We hypothesized that amyloid-β PET imaging by 18F-florbetapir, a radiotracer that detects fibrillar amyloid-β plaque deposits, would identify subjects with global cognitive impairment or poor performance in individual cognitive domains in non-demented Parkinson disease patients...
2017: PloS One
https://www.readbyqxmd.com/read/28529307/genetic-deletion-of-sost-or-pharmacological-inhibition-of-sclerostin-prevent-multiple-myeloma-induced-bone-disease-without-affecting-tumor-growth
#2
J Delgado-Calle, J Anderson, M D Cregor, K W Condon, S A Kuhstoss, L I Plotkin, T Bellido, G D Roodman
Multiple myeloma (MM) causes lytic bone lesions due to increased bone resorption and concomitant marked suppression of bone formation. Sclerostin (Scl) levels, an osteocyte-derived inhibitor of Wnt/β-catenin signaling, are elevated in MM patient sera and are increased in osteocytes in MM-bearing mice. We show here that genetic deletion of Sost, the gene encoding Scl, prevented MM-induced bone disease in an immune-deficient mouse model of early MM, and that administration of anti-Scl antibody (Scl-Ab) increased bone mass and decreases osteolysis in immune-competent mice with established MM...
May 22, 2017: Leukemia: Official Journal of the Leukemia Society of America, Leukemia Research Fund, U.K
https://www.readbyqxmd.com/read/28515856/inter-ethnic-marriages-and-severity-of-coronary-artery-disease-a-multicenter-study-of-arabian-gulf-states
#3
Amin Daoulah, Salem Al-Kaabi, Amir Lotfi, Mushabab Al-Murayeh, S Ali Nasseri, Waleed Ahmed, Salah N Al-Otaibi, Mohamed N Alama, Osama E Elkhateeb, Amy J Plotkin, Majed M Malak, Khalid Alshali, Mohamed Hamzi, Saleh Al Khunein, Mohammed Abufayyah, Alawi A Alsheikh-Ali
AIM: To assess the association of inter-ethnic vs intra-ethnic marriage with severity of coronary artery disease (CAD) in men undergoing angiography. METHODS: We conducted a prospective multicenter, multi-ethnic, cross sectional observational study at five hospitals in Saudi Arabia and the United Arab Emirates, in which we used logistic regression analysis with and without adjustment for baseline differences. RESULTS: Data were collected for 1068 enrolled patients undergoing coronary angiography for clinical indications during the period of April 1(st), 2013 to March 30(th), 2014...
April 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/28504192/correlates-of-protection-for-enteric-vaccines
#4
Jan Holmgren, Umesh D Parashar, Stanley Plotkin, Jacques Louis, Su-Peing Ng, Eric Desauziers, Valentina Picot, Mitra Saadatian-Elahi
An immunological Correlate of Protection (CoP) is an immune response that is statistically interrelated with protection. Identification of CoPs for enteric vaccines would help design studies to improve vaccine performance of licensed vaccines in low income settings, and would facilitate the testing of future vaccines in development that might be more affordable. CoPs are lacking today for most existing and investigational enteric vaccines. In order to share the latest information on CoPs for enteric vaccines and to discuss novel approaches to correlate mucosal immune responses in humans with protection, the Foundation Mérieux organized an international conference of experts where potential CoPs for vaccines were examined using case-studies for both bacterial and viral enteric pathogens...
May 11, 2017: Vaccine
https://www.readbyqxmd.com/read/28490424/waning-immunity-and-microbial-vaccines-workshop-of-the-national-institute-of-allergy-and-infectious-diseases
#5
Xin-Xing Gu, Stanley A Plotkin, Kathryn M Edwards, Alessandro Sette, Kingston H G Mills, Ofer Levy, Andrea J Sant, Annie Mo, William Alexander, Kristina T Lu, Christopher E Taylor
Since the middle of the 20th century, vaccines have made a significant public health impact controlling infectious diseases globally. Although long-term protection has been achieved with some vaccines, immunity wanes over time with others, resulting in outbreaks or epidemics of infectious diseases. Long-term protection against infectious agents with complex life cycles and antigenic variation remains a key challenge. Novel strategies to characterize the short and long-term immune responses to vaccines, and to induce immune responses that mimic natural infection have recently emerged...
May 10, 2017: Clinical and Vaccine Immunology: CVI
https://www.readbyqxmd.com/read/28475707/infectious-disease-specialists-practice-what-you-preach
#6
Stanley Plotkin
No abstract text is available yet for this article.
May 5, 2017: Clinical Infectious Diseases: An Official Publication of the Infectious Diseases Society of America
https://www.readbyqxmd.com/read/28457935/nf-%C3%AE%C2%BAb-inhibitors-that-prevent-foam-cell-formation-and-atherosclerotic-plaque-accumulation
#7
Jesse D Plotkin, Michael G Elias, Anthony L Dellinger, Christopher L Kepley
The transformation of monocyte-derived macrophages into lipid-laden foam cells is one inflammatory process underlying atherosclerotic disease. Previous studies have demonstrated that fullerene derivatives (FDs) have inflammation-blunting properties. Thus, it was hypothesized that FD could inhibit the transformation process underlying foam cell formation. Fullerene derivatives inhibited the phorbol myristic acid/oxidized low-density lipoprotein-induced differentiation of macrophages into foam cells as determined by lipid staining and morphology...
April 27, 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/28387684/neuropsychological-subgroups-in-non-demented-parkinson-s-disease-a-latent-class-analysis
#8
Laura Brennan, Kathryn M Devlin, Sharon X Xie, Dawn Mechanic-Hamilton, Baochan Tran, Howard H Hurtig, Alice Chen-Plotkin, Lama M Chahine, James F Morley, John E Duda, David R Roalf, Nabila Dahodwala, Jacqueline Rick, John Q Trojanowski, Paul J Moberg, Daniel Weintraub
BACKGROUND: Methods to detect early cognitive decline and account for heterogeneity of deficits in Parkinson's disease (PD) are needed. Quantitative methods such as latent class analysis (LCA) offer an objective approach to delineate discrete phenotypes of impairment. OBJECTIVE: To identify discrete neurocognitive phenotypes in PD patients without dementia. METHODS: LCA was applied to a battery of 8 neuropsychological measures to identify cognitive subtypes in a cohort of 199 non-demented PD patients...
April 4, 2017: Journal of Parkinson's Disease
https://www.readbyqxmd.com/read/28375764/vaccines-for-epidemic-infections-and-the-role-of-cepi
#9
Stanley A Plotkin
The author reviews the foundation of the Coalition for Epidemic Preparedness and Innovations and the choices it has made for funding of vaccine development against epidemic diseases. He comments on those decisions as well as proposing how CEPI could remain relevant for the long term.
April 4, 2017: Human Vaccines & Immunotherapeutics
https://www.readbyqxmd.com/read/28359087/glucocorticoids-induce-bone-and-muscle-atrophy-by-tissue-specific-mechanisms-upstream-of-e3-ubiquitin-ligases
#10
Amy Y Sato, Danielle Richardson, Meloney Cregor, Hannah M Davis, Ernie D Au, Kevin McAndrews, Teresa A Zimmers, Jason M Organ, Munro Peacock, Lilian I Plotkin, Teresita Bellido
Glucocorticoid excess, either endogenous with diseases of the adrenal gland, stress, or aging or when administered for immunosuppression, induces bone and muscle loss, leading to osteopenia and sarcopenia. Muscle weakness increases the propensity for falling, which, combined with the lower bone mass, increases the fracture risk. The mechanisms underlying glucocorticoid-induced bone and muscle atrophy are not completely understood. We have demonstrated that the loss of bone and muscle mass, decreased bone formation, and reduced muscle strength, hallmarks of glucocorticoid excess, are accompanied by upregulation in both tissues in vivo of the atrophy-related genes atrogin1, MuRF1, and MUSA1...
March 1, 2017: Endocrinology
https://www.readbyqxmd.com/read/28353535/increasing-voluntary-medical-male-circumcision-vmmc-uptake-among-adult-men-in-tanzania-a-randomised-controlled-trial
#11
Mwita Wambura, Hally Mahler, Jonathan M Grund, Natasha Larke, Gerry Mshana, Evodius Kuringe, Marya Plotkin, Gissenge Lija, Maende Makohka, Fern Terris-Prestholt, Richard J Hayes, John Changalucha, Helen A Weiss
OBJECTIVE: We evaluated a demand creation intervention to increase voluntary medical male circumcision (VMMC) uptake among men aged 20-34 years in Tanzania, to maximise short-term impact on HIV incidence. METHODS: A cluster-randomised controlled trial stratified by region was conducted in 20 outreach sites in Njombe and Tabora regions. The sites were randomised 1:1 to receive either a demand-creation intervention package in addition to standard VMMC outreach, or standard VMMC outreach alone...
March 28, 2017: AIDS
https://www.readbyqxmd.com/read/28350578/increasing-voluntary-medical-male-circumcision-uptake-among-adult-men-in-tanzania
#12
Mwita Wambura, Hally Mahler, Jonathan M Grund, Natasha Larke, Gerry Mshana, Evodius Kuringe, Marya Plotkin, Gissenge Lija, Maende Makokha, Fern Terris-Prestholt, Richard J Hayes, John Changalucha, Helen A Weiss
OBJECTIVE: We evaluated a demand-creation intervention to increase voluntary medical male circumcision (VMMC) uptake among men aged 20-34 years in Tanzania, to maximise short-term impact on HIV incidence. METHODS: A cluster randomized controlled trial stratified by region was conducted in 20 outreach sites in Njombe and Tabora regions. The sites were randomized 1 : 1 to receive either a demand-creation intervention package in addition to standard VMMC outreach, or standard VMMC outreach alone...
April 24, 2017: AIDS
https://www.readbyqxmd.com/read/28317237/disruption-of-the-cx43-mir21-pathway-leads-to-osteocyte-apoptosis-and-increased-osteoclastogenesis-with-aging
#13
Hannah M Davis, Rafael Pacheco-Costa, Emily G Atkinson, Lucas R Brun, Arancha R Gortazar, Julia Harris, Masahiro Hiasa, Surajudeen A Bolarinwa, Toshiyuki Yoneda, Mircea Ivan, Angela Bruzzaniti, Teresita Bellido, Lilian I Plotkin
Skeletal aging results in apoptosis of osteocytes, cells embedded in bone that control the generation/function of bone forming and resorbing cells. Aging also decreases connexin43 (Cx43) expression in bone; and osteocytic Cx43 deletion partially mimics the skeletal phenotype of old mice. Particularly, aging and Cx43 deletion increase osteocyte apoptosis, and osteoclast number and bone resorption on endocortical bone surfaces. We examined herein the molecular signaling events responsible for osteocyte apoptosis and osteoclast recruitment triggered by aging and Cx43 deficiency...
June 2017: Aging Cell
https://www.readbyqxmd.com/read/28299518/addressing-the-first-90-a-highly-effective-partner-notification-approach-reaches-previously-undiagnosed-sexual-partners-in-tanzania
#14
Catherine Kahabuka, Marya Plotkin, Alice Christensen, Charlene Brown, Mustafa Njozi, Renatus Kisendi, Werner Maokola, Erick Mlanga, Ruth Lemwayi, Kelly Curran, Vincent Wong
To meet UNAIDS' 90-90-90 treatment goals, effective approaches to HIV testing services (HTSs) are urgently needed. In 2015, a cross-sectional study was conducted to evaluate effectiveness and feasibility of partner notification for HTS in Tanzania. Men and women newly diagnosed with HIV were enrolled as index clients, listed sexual partners, and given options to notify and link their partners to HTS. Of 653 newly diagnosed individuals, 390 index clients were enrolled, listed 438 sexual partners, of whom 249 (56...
March 15, 2017: AIDS and Behavior
https://www.readbyqxmd.com/read/28289064/what-is-wrong-with-pertussis-vaccine-immunity-the-problem-of-waning-effectiveness-of-pertussis-vaccines
#15
Nicolas Burdin, L K Handy, S A Plotkin
Pertussis is resurgent in some countries, particularly those in which children receive acellular pertussis (aP) vaccines in early infancy and boosters later in life. Immunologic studies show that, whereas whole-cell pertussis (wP) vaccines orient the immune system toward Th1/Th17 responses, acellular pertussis vaccines orient toward Th1/Th2 responses. Although aP vaccines do provide protection during the first years of life, the change in T-cell priming results in waning effectiveness of aP as early as 2-3 years post-boosters...
March 13, 2017: Cold Spring Harbor Perspectives in Biology
https://www.readbyqxmd.com/read/28229472/human-capital-gaps-in-vaccine-development-an-issue-for-global-vaccine-development-and-global-health
#16
Andrea Cawein, Emilio Emini, Michael Watson, Joanna Dailey, John Donnelly, Dina Tresnan, Tom Evans, Stanley Plotkin, William Gruber
Despite the success of vaccines in reducing the morbidity and mortality associated with infectious diseases, many infectious diseases, both newly emerging and well known, lack vaccines. The global capability for beginning-to-end vaccine development has become limited, primarily owing to a scarcity of human capital necessary to guide the development of novel vaccines from the laboratory to the marketplace. Here, we identify and discuss the gaps in human capital necessary for robust vaccine development and make recommendations to begin to address these deficiencies...
May 2017: Annals of the New York Academy of Sciences
https://www.readbyqxmd.com/read/28211981/first-report-of-factors-associated-with-satisfaction-in-patients-with-neurofibromatosis
#17
Eric Riklin, Mojtaba Talaei-Kheoi, Vanessa L Merker, Monica R Sheridan, Justin T Jordan, Scott R Plotkin, Ana-Maria Vranceanu
Patient satisfaction is an integral part of quality health care. We assessed whether health literacy and psychosocial factors are associated with patient satisfaction among adults with neurofibromatosis. Eighty adults (mean age = 44 years; 55% female, 87% white) with NF (50% NF1, 41% NF2, and 9% schwannomatosis) completed an adapted Functional, Communicative, and Critical Health Literacy Questionnaire (FCCHL), the Health Literacy Assessment, a series of Patient Reported Outcome Measures Information System (PROMIS) psychosocial tests, and demographics before the medical visit...
March 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28194556/pancreatoblastoma-an-atypical-presentation-and-a-literature-review
#18
Marisa Terino, Eileen Plotkin, Raffi Karagozian
No abstract text is available yet for this article.
February 14, 2017: Journal of Gastrointestinal Cancer
https://www.readbyqxmd.com/read/28169160/corrigendum-to-discovery-of-benzofuran-propanoic-acid-gpr120-agonists-from-uhts-hit-to-mechanism-based-pharmacodynamic-effects-bioorg-med-chem-lett-26-2016-5724-5728
#19
Matthew Lombardo, Kate Bender, Clare London, Michael A Plotkin, Melissa Kirkland, Joel Mane, Michele Pachanski, Wayne Geissler, John Cummings, Bahanu Habulihaz, Taro E Akiyama, Jerry Di Salvo, Maria Madeira, Joanna Pols, Mary Ann Powles, Michael F Finley, Eric Johnson, Thomas Roussel, Victor N Uebele, Alejandro Crespo, Dennis Leung, Candice Alleyne, Dorina Trusca, Ying Lei, Andrew D Howard, Feroze Ujjainwalla, James R Tata, Christopher J Sinz
No abstract text is available yet for this article.
February 4, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28166501/using-a-sniff-controller-to-self-trigger-abdominal-functional-electrical-stimulation-for-assisted-coughing-following-cervical-spinal-cord-lesions
#20
Lior Haviv, Hagit Friedman, Uri Bierman, Itzhak Glass, Anton Plotkin, Aharon Weissbrod, Sagit Shushan, Vadim Bluvshtein, Elena Aidinoff, Noam Sobel, Amiram Catz
Individuals with cervical spinal cord lesions (SCL) typically depend on caregivers to manually assist in coughing by pressing against their abdominal wall. Coughing can also be assisted by functional electric stimulation (FES) applied to abdominal muscles via surface electrodes. Efficacy of FES, however, depends on precise temporal synchronization. The sniff-controller is a trigger that enables paralyzed individuals to precisely control external devices through alterations in nasal airflow. We hypothesized that FES self-triggering by sniffcontroller may allow for effective cough timing...
January 31, 2017: IEEE Transactions on Neural Systems and Rehabilitation Engineering
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