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https://www.readbyqxmd.com/read/28729220/cognitive-enhancement-and-antipsychotic-like-activity-following-repeated-dosing-with-the-selective-m4-pam-vu0467154
#1
Robert W Gould, Michael D Grannan, Barak W Gunter, Jacob Ball, Michael Bubser, Thomas M Bridges, Jurgen Wess, Michael W Wood, Nicholas J Brandon, Mark E Duggan, Colleen M Niswender, Craig W Lindsley, P Jeffrey Conn, Carrie K Jones
Although selective activation of the M1 muscarinic acetylcholine receptor (mAChR) subtype has been shown to improve cognitive function in animal models of neuropsychiatric disorders, recent evidence suggests that enhancing M4 mAChR function can also improve memory performance. Positive allosteric modulators (PAMs) targeting the M4 mAChR subtype have shown therapeutic potential for the treatment of multiple symptoms observed in schizophrenia, including positive and cognitive symptoms when assessed in acute preclinical dosing paradigms...
July 17, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28715698/acculturative-stress-as-a-moderator-of-the-effect-of-drinking-motives-on-alcohol-use-and-problems-among-young-adults
#2
Bridgid Mariko Conn, Kida Ejesi, Dawn W Foster
BACKGROUND: Research has demonstrated a strong relationship between drinking motives and alcohol use among young adult populations. Further, there is substantial evidence of the association between psychosocial stressors and greater alcohol consumption. In the present study, we examined whether acculturative stress would moderate the relationship between major drinking motives and alcohol use behaviors and alcohol-related problems, and whether this relationship differs by racial/ethnic group...
June 30, 2017: Addictive Behaviors
https://www.readbyqxmd.com/read/28702362/a-unique-case-of-spontaneous-bilateral-renal-subcapsular-urinoma-secondary-to-high-pressure-chronic-retention-of-urine
#3
Neil U Maitra, Ian G Conn
Subcapsular urinomas have been reported in the past as a presenting feature of ureteric or bladder outlet obstruction, generally in children, and often associated with neurogenic bladders. We describe a case of spontaneous asymptomatic bilateral subcapsular urinomas in an adult male with high pressure retention of urine secondary to bladder outlet obstruction. An extensive literature review shows this to be a unique case.
September 2017: Urology Case Reports
https://www.readbyqxmd.com/read/28690115/a-statistical-description-of-plant-shoot-architecture
#4
Adam Conn, Ullas V Pedmale, Joanne Chory, Charles F Stevens, Saket Navlakha
Plant architectures can be characterized statistically by their spatial density function, which specifies the probability of finding a branch at each location in the territory occupied by a plant. Using high-precision 3D scanning, we analyzed 557 plant shoot architectures, representing three species, grown across three to five environmental conditions, and through 20-30 developmental time points. We found two elegant properties in the spatial density functions of these architectures: all functions could be nearly modified in one direction without affecting the density in orthogonal directions (called "separability"), and all functions shared the same underlying shape, aside from stretching and compression (called "self-similarity")...
July 5, 2017: Current Biology: CB
https://www.readbyqxmd.com/read/28688818/diabetes-in-sub-saharan-africa-from-clinical-care-to-health-policy
#5
REVIEW
Rifat Atun, Justine I Davies, Edwin A M Gale, Till Bärnighausen, David Beran, Andre Pascal Kengne, Naomi S Levitt, Florence W Mangugu, Moffat J Nyirenda, Graham D Ogle, Kaushik Ramaiya, Nelson K Sewankambo, Eugene Sobngwi, Solomon Tesfaye, John S Yudkin, Sanjay Basu, Christian Bommer, Esther Heesemann, Jennifer Manne-Goehler, Iryna Postolovska, Vera Sagalova, Sebastian Vollmer, Zulfiqarali G Abbas, Benjamin Ammon, Mulugeta Terekegn Angamo, Akhila Annamreddi, Ananya Awasthi, Stéphane Besançon, Sudhamayi Bhadriraju, Agnes Binagwaho, Philip I Burgess, Matthew J Burton, Jeanne Chai, Felix P Chilunga, Portia Chipendo, Anna Conn, Dipesalema R Joel, Arielle W Eagan, Crispin Gishoma, Julius Ho, Simcha Jong, Sujay S Kakarmath, Yasmin Khan, Ramu Kharel, Michael A Kyle, Seitetz C Lee, Amos Lichtman, Carl P Malm, Maïmouna N Mbaye, Marie A Muhimpundu, Beatrice M Mwagomba, Kibachio Joseph Mwangi, Mohit Nair, Simon P Niyonsenga, Benson Njuguna, Obiageli L O Okafor, Oluwakemi Okunade, Paul H Park, Sonak D Pastakia, Chelsea Pekny, Ahmed Reja, Charles N Rotimi, Samuel Rwunganira, David Sando, Gabriela Sarriera, Anshuman Sharma, Assa Sidibe, Elias S Siraj, Azhra S Syed, Kristien Van Acker, Mahmoud Werfalli
No abstract text is available yet for this article.
July 5, 2017: Lancet Diabetes & Endocrinology
https://www.readbyqxmd.com/read/28688648/nationwide-review-of-hormonally-active-adrenal-tumors-highlights-high-morbidity-in-pheochromocytoma
#6
Punam P Parikh, Gustavo A Rubio, Josefina C Farra, John I Lew
BACKGROUND: Adrenal adenomas are benign tumors often discovered incidentally, and >70% are hormonally inactive. The remaining subset may produce excess aldosterone, cortisol, or catecholamine. Perioperative outcomes after adrenalectomy for such "hormonally active" tumors remain unclear. This study examines in-hospital outcomes after unilateral adrenalectomy for hormonally active tumors. METHODS: A retrospective review was performed using the Nationwide Inpatient Sample (2006-2011) to identify patients undergoing unilateral adrenalectomy for hormonally active or inactive tumors...
July 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/28687088/canonical-mrna-is-the-exception-rather-than-the-rule
#7
Jun-An Chen, Simon Conn
A report on the Second Aegean International Conference on the Long and the Short of Non-Coding RNAs, held in Heraklion, Greece, 9-14 June 2017.
July 7, 2017: Genome Biology
https://www.readbyqxmd.com/read/28679049/role-of-mglu5-receptors-and-inhibitory-neurotransmission-in-m1-dependent-muscarinic-ltd-in-the-prefrontal-cortex-implications-in-schizophrenia
#8
Ayan Ghoshal, Sean P Moran, Jonathan W Dickerson, Max E Joffe, Brad A Grueter, Zixiu Xiang, Craig W Lindsley, Jerri M Rook, P Jeffrey Conn
Selective potentiation of the mGlu5 subtype of metabotropic glutamate (mGlu) receptor using positive allosteric modulators (PAMs) has robust cognition-enhancing effects in rodent models that are relevant for schizophrenia. Until recently, these effects were thought to be due to potentiation of mGlu5-induced modulation of NMDA receptor (NMDAR) currents and NMDAR-dependent synaptic plasticity. However, "biased" mGlu5 PAMs that do not potentiate mGlu5 effects on NMDAR currents show efficacy that is similar to that of prototypical mGlu5 PAMs, suggesting that NMDAR-independent mechanisms must be involved in these actions...
July 5, 2017: ACS Chemical Neuroscience
https://www.readbyqxmd.com/read/28671109/a-l-copley-best-paper-prize-2016
#9
Friedrich Jung, Philippe Connes, Christian Lehmann
No abstract text is available yet for this article.
2017: Clinical Hemorheology and Microcirculation
https://www.readbyqxmd.com/read/28670947/genetic-background-of-the-sickle-cell-disease-pediatric-population-of-dakar-senegal-and-characterization-of-a-novel-frameshift-%C3%AE-thalassemia-mutation-hbb-c-265_266del-p-leu89glufs-2
#10
Fatou Gueye Tall, Cyril Martin, El Hadji Malick Ndour, Indou Déme Ly, Céline Renoux, Louis Chillotti, Nicolas Veyrenche, Philippe Connes, Papa Madieye Gueye, Rokhaya Ndiaye Diallo, Philippe Lacan, Ibrahima Diagne, Pape Amadou Diop, Aynina Cissé, Philomène Lopez Sall, Philippe Joly
Sickle cell disease is a genetic disorder with a large variability in the pattern and severity of clinical manifestations. Different genetic modulators have been identified but very few epidemiologic data are available on these modifier genes in Senegal. This study aimed to determine their prevalence in a Senegalese sickle cell disease pediatric population. The following genetic parameters were genotyped in 295 sickle cell disease children of the Dakar pediatric hospital: sickle cell disease genotype [β(S)/β(S) (HBB: c...
March 2017: Hemoglobin
https://www.readbyqxmd.com/read/28664928/co-activation-of-metabotropic-glutamate-receptor-3-and-beta-adrenergic-receptors-modulates-cyclic-amp-long-term-potentiation-and-disrupts-memory-reconsolidation
#11
Adam G Walker, Douglas J Sheffler, Andrew S Lewis, Jonathan W Dickerson, Daniel J Foster, Rebecca K Senter, Mark S Moehle, Xiaohui Lv, Branden J Stansley, Zixiu Xiang, Jerri M Rook, Kyle A Emmitte, Craig W Lindsley, P Jeffrey Conn
Activation of β-adrenergic receptors (βARs) enhances both the induction of long-term potentiation (LTP) in hippocampal CA1 pyramidal cells and hippocampal-dependent cognitive function. Interestingly, previous studies reveal that coincident activation of group II metabotropic glutamate (mGlu) receptors with βARs in the hippocampal astrocytes induces a large increase in cyclic-AMP (cAMP) accumulation and release of adenosine. Adenosine then acts on A1 adenosine receptors at neighboring excitatory Schaffer collateral terminals, which could counteract effects of activation of neuronal βARs on excitatory transmission...
June 30, 2017: Neuropsychopharmacology: Official Publication of the American College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28646702/alcohol-and-recreational-drug-use-in-young-adults-with-type-1-diabetes
#12
REVIEW
Adam Pastor, Jennifer Conn, Jessie Teng, Casey L O'Brien, Margaret Loh, Lisa Collins, Richard MacIsaac, Yvonne Bonomo
Alcohol and other recreational drug use reaches peak prevalence in young adulthood, including for those with chronic medical conditions such as type 1 diabetes. This review summarises the current literature on the patterns of substance use amongst young adults with type 1 diabetes and the mechanisms through which alcohol and recreational drugs may affect diabetes related health outcomes. These include the direct physical effect of intoxication, as well as the effects of alcohol and drugs on mental health and glucose metabolism...
June 11, 2017: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/28645169/heterodimerization-of-arabidopsis-calcium-proton-exchangers-contributes-to-regulation-of-guard-cell-dynamics-and-plant-defense-responses
#13
Bradleigh Hocking, Simon J Conn, Murli Manohar, Bo Xu, Asmini Athman, Matthew A Stancombe, Alex R Webb, Kendal D Hirschi, Matthew Gilliham
Arabidopsis thaliana cation exchangers (CAX1 and CAX3) are closely related tonoplast-localized calcium/proton (Ca2+/H+) antiporters that contribute to cellular Ca2+ homeostasis. CAX1 and CAX3 were previously shown to interact in yeast; however, the function of this complex in plants has remained elusive. Here, we demonstrate that expression of CAX1 and CAX3 occurs in guard cells. Additionally, CAX1 and CAX3 are co-expressed in mesophyll tissue in response to wounding or flg22 treatment, due to the induction of CAX3 expression...
June 22, 2017: Journal of Experimental Botany
https://www.readbyqxmd.com/read/28644176/conn-syndrome-presenting-as-central-retinal-vein-occlusion
#14
Alp Atik, Dennis Wilson, Rohan W Essex
PURPOSE: To describe a case of central retinal vein occlusion in a young patient presenting with symptomatic malignant hypertension because of Conn syndrome. METHODS: Single interventional case report. RESULTS: A 44-year-old man presented with a 1-day history of headache and vision loss in his right eye on a background of malignant hypertension. He was diagnosed with right central retinal vein occlusion. Further investigation of his malignant hypertension revealed Conn syndrome because of an aldosterone-secreting adenoma in the left adrenal gland...
June 20, 2017: Retinal Cases & Brief Reports
https://www.readbyqxmd.com/read/28638984/associations-of-aldosterone-and-renin-concentrations-with-inflammation-the-study-of-health-in-pomerania-and-the-german-conn-s-registry
#15
A Grotevendt, H Wallaschofski, M Reincke, C Adolf, M Quinkler, M Nauck, W Hoffmann, R Rettig, A Hannemann
PURPOSE: Chronic inflammation is an age-independent and body mass index-independent contributor to the development of multi-morbidity. Alterations of the renin-angiotensin-aldosterone system are observed within the context of proinflammatory states. We assessed circulating aldosterone, renin, and inflammatory biomarker concentrations in healthy, normotensive subjects and patients with primary aldosteronism. METHODS: We included 1177 normotensive individuals from the population-based Study of Health in Pomerania (first follow-up, Study of Health in Pomerania-1) and 103 primary aldosteronism patients from the German Conn's Registry...
August 2017: Endocrine
https://www.readbyqxmd.com/read/28637561/considering-postoperative-functional-hypoaldosteronism-after-unilateral-adrenalectomy
#16
Lee F Starker, Ioannis Christakis, Jamii St Julien, Kelly Schwarz, Paul Graham, Elizabeth G Grubbs, Jeffrey E Lee, Nancy D Perrier
Conn's Syndrome is an uncommon condition. Patients who have undergone adrenalectomy in the early postoperative period can demonstrate biochemical hypoaldosteronism. Given the rare nature of this phenomenon we investigated its incidence and whether it translated to clinical findings. A single-institution retrospective review of all patients with biochemically proven hyperaldosteronism from 2005 to 2014 that underwent unilateral adrenalectomy. A total of 29 patients fit the inclusion criteria. Functional hypoaldosteronism had appreciated in 18/29 (62%) patients, whereas 11 patients (38%) had normal postoperative aldosterone...
June 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/28633897/discovery-and-optimization-of-3-4-aryl-heteroarylsulfonyl-piperazin-1-yl-6-piperidin-1-yl-pyridazines-as-novel-cns-penetrant-pan-muscarinic-antagonists
#17
Aaron M Bender, Rebecca L Weiner, Vincent B Luscombe, Sonia Ajmera, Hyekyung P Cho, Sichen Chang, Xiaoyan Zhan, Alice L Rodriguez, Colleen M Niswender, Darren W Engers, Thomas M Bridges, P Jeffrey Conn, Craig W Lindsley
This letter describes the synthesis and structure activity relationship (SAR) studies of structurally novel M4 antagonists, based on a 3-(4-aryl/heteroarylsulfonyl)piperazin-1-yl)-6-(piperidin-1-yl)pyridazine core, identified from a high-throughput screening campaign. A multi-dimensional optimization effort enhanced potency at human M4 (hM4 IC50s<200nM), with only moderate species differences noted, and with enantioselective inhibition. Moreover, CNS penetration proved attractive for this series (rat brain:plasma Kp=2...
August 1, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/28630679/molecular-interactions-of-amyloid-nanofibrils-with-biological-aggregation-modifiers-implications-for-cytotoxicity-mechanisms-and-biomaterial-design
#18
REVIEW
Durga Dharmadana, Nicholas P Reynolds, Charlotte E Conn, Céline Valéry
Amyloid nanofibrils are ubiquitous biological protein fibrous aggregates, with a wide range of either toxic or beneficial activities that are relevant to human disease and normal biology. Protein amyloid fibrillization occurs via nucleated polymerization, through non-covalent interactions. As such, protein nanofibril formation is based on a complex interplay between kinetic and thermodynamic factors. The process entails metastable oligomeric species and a highly thermodynamically favoured end state. The kinetics, and the reaction pathway itself, can be influenced by third party moieties, either molecules or surfaces...
August 6, 2017: Interface Focus
https://www.readbyqxmd.com/read/28624257/moderate-exercise-training-decreases-inflammation-in-transgenic-sickle-cell-mice
#19
Emmanuelle Charrin, John J Dubé, Philippe Connes, Vincent Pialoux, Samit Ghosh, Camille Faes, Solomon F Ofori-Acquah, Cyril Martin
Chronic systemic inflammation is a pathophysiological feature of sickle cell disease (SCD). Considering that regular exercise exerts multiple beneficial health effects including anti-inflammatory actions, we investigated whether a treadmill training program could minimize the inflammatory state in transgenic sickle cell (SS) mice. To test this hypothesis, SS mice were subjected to a treadmill training protocol of 1h/day, 5days a week for 8weeks. Exercise training increased the percent of venous oxyhemoglobin and sharply decreased the percent of carboxyhemoglobin suggesting that exercise training may limit the proportion of erythrocytes that were deoxygenated in the venous circulation...
June 13, 2017: Blood Cells, Molecules & Diseases
https://www.readbyqxmd.com/read/28588171/clinical-and-laboratory-predictors-of-esophageal-varices-in-children-with-chronic-liver-disease
#20
M I Hasan, M Rukunuzzaman, M Nurullah, F Sultana
Esophageal varices are a serious consequence of portal hypertension in patients with chronic liver diseases. Several studies have evaluated possible noninvasive markers of esophageal varices to reduce the number of unnecessary endoscopies in patients with chronic liver disease. Aim of this study was to identify clinical and laboratory predictors of esophageal varices in children with chronic liver disease. This cross sectional observational study was done at Pediatric Gastroenterology and Nutrition Department of Bangabandhu Sheikh Mujib Medical University, Dhaka, over a period of 6 months...
April 2017: Mymensingh Medical Journal: MMJ
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