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Chilling requirement

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https://www.readbyqxmd.com/read/28495891/trimethylguanosine-synthase-1-tgs1-is-essential-for-chilling-tolerance
#1
Jinpeng Gao, James G Wallis, Jeremy Burke Jewell, John Browse
Chilling stress is a major factor limiting plant development and crop productivity. Because the plant response to chilling is so complex, we are far from understanding the genes important in the response to chilling. To identify new genes important in chilling tolerance we conducted a novel mutant screen, combining a confirmed SALK T-DNA insertion collection with traditional forward genetics. We screened a pool of more than 3700 confirmed homozygous SALK T-DNA insertion lines for visible defects under prolonged growth at 5{degree sign}C...
May 11, 2017: Plant Physiology
https://www.readbyqxmd.com/read/28473914/isolated-splenic-abscess-in-brucellosis
#2
Sreenivasa Rao Sudulagunta, Monica Kumbhat, Mahesh Babu Sodalagunta, Aravinda Settikere Nataraju, Shiva Kumar Bangalore Raja
Brucellosis is a zoonotic infectious disease, which can attack any organ of the body but mainly involves lymphoreticular system. Our case report describes isolated splenic abscess diagnosed in a 50-year-old individual who is a milk vendor by occupation and has the habit of consuming raw milk. He was admitted with pain abdomen, high-grade fever with chills, generalized malaise, night sweats and weight loss. Ultrasound and computerized tomography of the abdomen showed splenomegaly and hypodense, nonenhancing lesion measuring 3...
February 2017: Oxford Medical Case Reports
https://www.readbyqxmd.com/read/28470761/phenological-responses-of-icelandic-subarctic-grasslands-to-short-term-and-long-term-natural-soil-warming
#3
N I W Leblans, B D Sigurdsson, S Vicca, Y Fu, J Penuelas, I A Janssens
The phenology of vegetation, particularly the length of the growing season (LOS; i.e. the period from greenup to senescence), is highly sensitive to climate change, which could imply potent feedbacks to the climate system, e.g. by altering the ecosystem carbon (C) balance. In recent decades, the largest extensions of LOS have been reported at high northern latitudes, but further warming-induced LOS extensions may be constrained by too short photoperiod or unfulfilled chilling requirements. Here, we studied subarctic grasslands, which cover a vast area and contain large C stocks, but for which LOS changes under further warming are highly uncertain...
May 4, 2017: Global Change Biology
https://www.readbyqxmd.com/read/28421103/svp-like-mads-box-genes-control-dormancy-and-budbreak-in-apple
#4
Rongmei Wu, Sumathi Tomes, Sakuntala Karunairetnam, Stuart D Tustin, Roger P Hellens, Andrew C Allan, Richard C Macknight, Erika Varkonyi-Gasic
The annual growth cycle of trees is the result of seasonal cues. The onset of winter triggers an endodormant state preventing bud growth and, once a chilling requirement is satisfied, these buds enter an ecodormant state and resume growing. MADS-box genes with similarity to Arabidopsis SHORT VEGETATIVE PHASE (SVP) [the SVP-like and DORMANCY ASSOCIATED MADS-BOX (DAM) genes] have been implicated in regulating flowering and growth-dormancy cycles in perennials. Here, we identified and characterized three DAM-like (MdDAMs) and two SHORT VEGETATIVE PHASE-like (MdSVPs) genes from apple (Malus × domestica 'Royal Gala')...
2017: Frontiers in Plant Science
https://www.readbyqxmd.com/read/28414677/a-rare-case-of-tropical-pyomysitis-acquired-on-vacation-in-a-healthy-male
#5
K Poole, T Tran
INTRODUCTION: Pyomyositis has traditionally been considered a tropical disease. Increasing prevalence has been observed in more northern climates, especially with HIV, immunosuppression, and IV drug abuse as predisposing factors. Pyomyositis has the tendency to mimic other conditions, such as muscle contusion, necrotizing fasciitis, or septic arthritis. The rarity of this disease and non-specificity of its symptoms often lead to delay in appropriate diagnosis and treatment. CASE: 24-year-old man, seen 2 days prior in orthopedics clinic and the Emergency Department for persistent gluteal pain thought to be due to right-sided sciatica, was admitted following worsening pain, diffuse generalized weakness with polyarthralgias and myalgias These symptoms were associated with night sweats, shaking chills, and difficulty walking...
March 2017: Journal of the Louisiana State Medical Society: Official Organ of the Louisiana State Medical Society
https://www.readbyqxmd.com/read/28279723/physiologic-cryoamputation-in-managing-critically-ill-patients-with-septic-advanced-acute-limb-ischemia
#6
Samuel L Chen, Isabella J Kuo, Nii-Kabu Kabutey, Roy M Fujitani
OBJECTIVES: Certain critically ill patients with advanced acute limb ischemia with a non-viable extremity may be unsuitable for transport to the operating room to undergo definitive amputation. In these unstable patients, rapid regional cryotherapy allows for prompt infectious source control and correction of hemodynamic and metabolic abnormalities, thereby lessening the risk associated with definitive surgical amputation. We describe our refined technique for lower extremity physiologic cryoamputation and review our institutional experience...
March 6, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28163098/caste-discrimination-in-the-ant-odontomachus-hastatus-what-role-for-behavioral-and-chemical-cues
#7
Kévin Berthelot, Felipe Ramon Portugal, Raphaël Jeanson
In social insects, the maintenance of genetic colony integrity requires resident workers to recognize any intruder with a reproductive potential and to behave appropriately to minimize fitness costs. In this study, our objective was to identify the relative contribution of the behavioral patterns and chemical cues of intruders with different fertility status on their likelihood of being accepted in monogynous colonies. Using the ponerine ant Odontomachus hastatus as a model organism, we introduced non-nestmate workers, founding queens and heterospecific workers on intact nests in the field...
February 2, 2017: Journal of Insect Physiology
https://www.readbyqxmd.com/read/28072812/is-kratom-the-new-legal-high-on-the-block-the-case-of-an-emerging-opioid-receptor-agonist-with-substance-abuse-potential
#8
George C Chang-Chien, Charles A Odonkor, Prin Amorapanth
Kratom is an unscheduled opioid receptor agonist that comes in the form of dietary supplements currently being abused by chronic pain patients on prescription opioids. Active alkaloids isolated from kratom such as mitragynine and 7-hydroxymitragynine are thought to act on mu- and delta-opioid receptors as well as alpha-2 adrenergic and 5-HT2A receptors. Animal studies suggest that kratom may be more potent than morphine. Consequently, kratom consumption produces analgesic and euphoric feelings among users. In particular, some chronic pain patients on opioids take kratom to counteract the effects of opioid withdrawal...
January 2017: Pain Physician
https://www.readbyqxmd.com/read/28057014/cocktail-treatment-with-egfr-specific-and-cd133-specific-chimeric-antigen-receptor-modified-t-cells-in-a-patient-with-advanced-cholangiocarcinoma
#9
Kai-Chao Feng, Ye-Lei Guo, Yang Liu, Han-Ren Dai, Yao Wang, Hai-Yan Lv, Jian-Hua Huang, Qing-Ming Yang, Wei-Dong Han
BACKGROUND: Cholangiocarcinoma (CCA) is one of the most fatal malignant tumors with increasing incidence, mortality, and insensitivity to traditional chemo-radiotherapy and targeted therapy. Chimeric antigen receptor-modified T cell (CART) immunotherapy represents a novel strategy for the management of many malignancies. However, the potential of CART therapy in treating advanced unresectable/metastatic CCA is uncharted so far. CASE PRESENTATION: In this case, a 52-year-old female who was diagnosed as advanced unresectable/metastatic CCA and resistant to the following chemotherapy and radiotherapy was treated with CART cocktail immunotherapy, which was composed of successive infusions of CART cells targeting epidermal growth factor receptor (EGFR) and CD133, respectively...
January 5, 2017: Journal of Hematology & Oncology
https://www.readbyqxmd.com/read/28040061/preservation-effect-of-meat-product-by-natural-antioxidant-tea-polyphenol
#10
W-D Wang, Y-E Sun
1% of tea polyphenol, chitosan solution and potassium sorbate were used as film-forming materials to coat chilled mutton. Total coliforms, TVB-N value and pH value were determined and used as the mutton fresh-keeping indexes. The results showed that after 12th day at the end of the storage, mutton coated with tea polyphenol had best effects comparing chitosan solution and potassium sorbate. pH value of mutton coated by tea polyphenol was 6.0, TVB-N and the total coliforms were both significantly lower than the meat coated by chitosan solution and potassium sorbate...
November 30, 2016: Cellular and Molecular Biology
https://www.readbyqxmd.com/read/28012365/new-approaches-towards-discrimination-of-fresh-chilled-and-frozen-thawed-chicken-breasts-by-hadh-activity-determination-customized-slope-fitting-and-chemometrics
#11
Rita Boerrigter-Eenling, Martin Alewijn, Yannick Weesepoel, Saskia van Ruth
Fresh/chilled chicken breasts retail at a higher price than their frozen/thawed counterparts. Verification of the fresh/thawed status of chicken meat is determined by measuring β-hydroxyacyl-Coenzyme A-hydrogenase (HADH) activity present in meat intra-cellular liquids spectrophotometrically. However, considerable numbers of reference samples are required for the current arithmetic method, adding to laboratory costs. Therefore, two alternative mathematical approaches which do not require such reference samples were developed and evaluated: curve fitting and multivariate classification...
April 2017: Meat Science
https://www.readbyqxmd.com/read/28011971/tuberculous-pericarditis-a-case-report
#12
Affan Denk, Mehmet Ali Kobat, Safak Ozer Balin, Sumeyye Selim Kara, Orhan Dogdu
Pericardial effusion is common disease and difficult to diagnose. Tuberculosis accounts for up to 4% of acute pericarditis and 7% of cardiac tamponade cases. Quick treatment can be lifesaving but requires accurate diagnosis. We report a case of a 65-year-old man who presented with a 3-week history of fever with chills, non-productive cough and dyspnea. The case was diagnosed by positivity of acid-fast staining, culture and polymerase chain reaction (PCR) of the aspirated pericardial fluid and treated promptly with antituberculosis drugs...
December 1, 2016: Le Infezioni in Medicina
https://www.readbyqxmd.com/read/27917391/adrift-in-the-gray-zone-irb-perspectives-on-research-in-the-learning-health-system
#13
Sandra Soo-Jin Lee, Maureen Kelley, Mildred K Cho, Stephanie Alessi Kraft, Cyan James, Melissa Constantine, Adrienne N Meyer, Douglas Diekema, Alexander M Capron, Benjamin S Wilfond, David Magnus
BACKGROUND: Human subjects protection in healthcare contexts rests on the premise that a principled boundary distinguishes clinical research and clinical practice. However, growing use of evidence-based clinical practices by health systems makes it increasingly difficult to disentangle research from a wide range of clinical activities that are sometimes called "research on medical practice" (ROMP), including quality improvement activities and comparative effectiveness research. The recent growth of ROMP activities has created an ethical and regulatory gray zone with significant implications for the oversight of human subjects research...
2016: AJOB Empirical Bioethics
https://www.readbyqxmd.com/read/27891134/cucumber-cucumis-sativus-l-nitric-oxide-synthase-associated-gene1-csnoa1-plays-a-role-in-chilling-stress
#14
Xingwang Liu, Bin Liu, Shudan Xue, Yanlinq Cai, Wenzhu Qi, Chen Jian, Shuo Xu, Ting Wang, Huazhong Ren
Nitric oxide (NO) is a gaseous signaling molecule in plants, transducing information as a result of exposure to low temperatures. However, the underlying molecular mechanism linking NO with chilling stress is not well understood. Here, we functionally characterized the cucumber (Cucumis sativus L.) nitric oxide synthase-associated gene, NITRIC OXIDE ASSOCIATED 1 (CsNOA1). Expression analysis of CsNOA1, using quantitative real-time PCR, in situ hybridization, and a promoter::β-glucuronidase (GUS) reporter assay, revealed that it is expressed mainly in the root and shoot apical meristem (SAM), and that expression is up-regulated by low temperatures...
2016: Frontiers in Plant Science
https://www.readbyqxmd.com/read/27862395/the-nuclear-and-developmental-competence-of-cumulus-oocyte-complexes-is-enhanced-by-three-dimensional-coculture-with-conspecific-denuded-oocytes-during-in-vitro-maturation-in-the-domestic-cat-model
#15
M G Morselli, G C Luvoni, P Comizzoli
The objective of the study was to assess the efficacy of coculture with conspecific cumulus-denuded oocytes (CDOs) during in vitro maturation in a three-dimensional system of barium alginate microcapsules on the in vitro embryo development of domestic cat cumulus-oocyte complexes (COCs). In Experiment I, COCs were cocultured with conspecific CDOs or cultured separately in a 3D system for 24 hr of in vitro maturation, before assessing the meiotic progression. In Experiment II, the in vitro fertilization of COCs and CDOs was carried out with chilled epididymal spermatozoa and the presumptive zygotes were cultured in vitro separately for 7 days in 3D microcapsules before assesment of embryonic development...
November 15, 2016: Reproduction in Domestic Animals, Zuchthygiene
https://www.readbyqxmd.com/read/27802854/syphilis-an-atypical-case-of-sepsis-and-multiple-anogenital-lesions-in-secondary-syphilis
#16
Nichole Smith, Sonu Dhillon, John G Cotter, Zohair Ahmed
The incidence of syphilis has historically been cyclical in nature, often in relation to the rise and fall of public health initiatives directed toward eradication along with social attitudes toward sexual practices. The incidence of syphilis has increased by 15% in the last 6 years in the United States, with similar increases worldwide. Herein, we present an atypical case of syphilis presenting with severe septic shock and multiple anogenital lesions in an immunocompetent host. A 22-year-old male with no significant past medical history presented with fevers, chills, sore throat, diaphoresis, and diarrhea...
2016: Journal of Community Hospital Internal Medicine Perspectives
https://www.readbyqxmd.com/read/27791156/chilling-induced-tomato-flavor-loss-is-associated-with-altered-volatile-synthesis-and-transient-changes-in-dna-methylation
#17
Bo Zhang, Denise M Tieman, Chen Jiao, Yimin Xu, Kunsong Chen, Zhangjun Fe, James J Giovannoni, Harry J Klee
Commercial tomatoes are widely perceived by consumers as lacking flavor. A major part of that problem is a postharvest handling system that chills fruit. Low-temperature storage is widely used to slow ripening and reduce decay. However, chilling results in loss of flavor. Flavor-associated volatiles are sensitive to temperatures below 12 °C, and their loss greatly reduces flavor quality. Here, we provide a comprehensive view of the effects of chilling on flavor and volatiles associated with consumer liking...
November 1, 2016: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/27774325/acute-hemolysis-with-renal-failure-due-to-clostridium-bacteremia-in-a-patient-with-aml
#18
R M Medrano-Juarez, D Sotello, M A Orellana-Barrios, L D'Cuhna, J D Payne, K Nugent
We present a case of acute hemolytic anemia, renal failure, and Clostridium perfringens bacteremia in a patient with acute myelogenous leukemia. The high fatality of C. perfringens bacteremia requires that clinicians recognize and rapidly treat patients at risk for this infection. Although other hemolytic processes are in the differential diagnosis of these events, the presence of high fever, chills, and rapidly positive blood cultures may help narrow the diagnosis. Most cases of C. perfringens bacteremia have a concomitant coinfection, which makes broad spectrum empiric therapy essential...
2016: Case Reports in Infectious Diseases
https://www.readbyqxmd.com/read/27764220/epidemiology-and-clinical-presentations-of-respiratory-syncytial-virus-subgroups-a-and-b-detected-with-multiplex-real-time-pcr
#19
Wenkuan Liu, Dehui Chen, Weiping Tan, Duo Xu, Shuyan Qiu, Zhiqi Zeng, Xiao Li, Rong Zhou
Respiratory syncytial virus (RSV) is one of the most important pathogenic infections of children and requires in-depth research worldwide, and especially in developing countries. We used a novel multiplex real-time PCR to test 5483 patients (≤ 14 years old) hospitalized with respiratory illness in Guangzhou, China, over a 3-year period. Of these patients, 729 were positive for RSV-A (51.2%, 373/729) or RSV-B (48.8%, 356/729), but none was infected with both viruses. Two seasonal peaks in total RSV were detected at the changes from winter to spring and from summer to autumn...
2016: PloS One
https://www.readbyqxmd.com/read/27756575/identification-of-methylosome-components-as-negative-regulators-of-plant-immunity-using-chemical-genetics
#20
Shuai Huang, Aruna Balgi, Yaping Pan, Meng Li, Xiaoran Zhang, Lilin Du, Ming Zhou, Michel Roberge, Xin Li
Nucleotide-binding leucine-rich repeat (NLR) proteins serve as immune receptors in both plants and animals. To identify components required for NLR-mediated immunity, we designed and carried out a chemical genetics screen to search for small molecules that can alter immune responses in Arabidopsis thaliana. From 13 600 compounds, we identified Ro 8-4304 that was able to specifically suppress the severe autoimmune phenotypes of chs3-2D (chilling sensitive 3, 2D), including the arrested growth morphology and heightened PR (Pathogenesis Related) gene expression...
December 5, 2016: Molecular Plant
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