keyword
MENU ▼
Read by QxMD icon Read
search

cell aging

keyword
https://www.readbyqxmd.com/read/28823092/inhibition-of-p2x7-receptors-improves-outcomes-after-traumatic-brain-injury-in-rats
#1
Xiaofeng Liu, Zhengqing Zhao, Ruihua Ji, Jiao Zhu, Qian-Qian Sui, Gillian E Knight, Geoffrey Burnstock, Cheng He, Hongbin Yuan, Zhenghua Xiang
Traumatic brain injury (TBI) is the leading cause of death and disability for people under the age of 45 years worldwide. Neuropathology after TBI is the result of both the immediate impact injury and secondary injury mechanisms. Secondary injury is the result of cascade events, including glutamate excitotoxicity, calcium overloading, free radical generation, and neuroinflammation, ultimately leading to brain cell death. In this study, the P2X7 receptor (P2X7R) was detected predominately in microglia of the cerebral cortex and was up-regulated on microglial cells after TBI...
August 19, 2017: Purinergic Signalling
https://www.readbyqxmd.com/read/28823069/current-status-of-cattle-production-system-in-nyagatare-district-rwanda
#2
Eugene Mazimpaka, Francis Mbuza, Tukei Michael, Eugene N Gatari, E M Bukenya, Okwee-Acai James
A study was conducted to characterize the cattle production systems in Nyagatare District, Eastern Province of Rwanda using pre-tested questionnaires, interviews with key informants as well as focus group discussions in a period of 2 months. The respondents were selected by multi-stage sampling at sector and cell levels. Based on the procedure of Krejcie and Morgan (Educational and Psychological Measurement 30:607-610, 1970) to determine the overall sample size, the result indicated that the majority (98.3%) of farms were privately owned by large families of five to seven members, and most farmers (53...
August 19, 2017: Tropical Animal Health and Production
https://www.readbyqxmd.com/read/28823067/combined-classical-spindle-cell-pleomorphic-lipoma-spectrum-imaging-and-clinical-data
#3
Yara Younan, Anthony Martinez, Nickolas Reimer, Mark Edgar, Felix Gonzalez, Monica Umpierrez, Ty Subhawong, Adam D Singer
OBJECTIVES: Compile the largest study to date on the imaging and clinical features of the classic spindle cell/pleomorphic lipoma spectrum and suggest this diagnosis be included in the differential for benign and malignant macroscopic fat-containing soft tissue masses regardless of the mass location or patient demographics. MATERIALS AND METHODS: An institutional search was performed to identify all available classic-type spindle cell/pleomorphic lipomas with available demographic and imaging data...
August 19, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28823055/effectivity-of-a-modified-sanz-risk-model-for-early-death-prediction-in-patients-with-newly-diagnosed-acute-promyelocytic-leukemia
#4
Yinjun Lou, Yafang Ma, Jianai Sun, Sansan Suo, Hongyan Tong, Wenbin Qian, Wenyuan Mai, Haitao Meng, Jie Jin
Early death is the main obstacle for the cure of patients with acute promyelocytic leukemia (APL). We have analyzed risk factors of early death from 526 consecutive newly diagnosed APL patients between 2004 and 2016. The overall incidence of early death was 7.2% (38/526). The peak hazard of early death occurred in the first 0-3 days. Multivariate logistic analysis demonstrated white blood cell (WBC) counts [odds ratio (OR) = 1.039; 95% confidence interval (CI): 1.024-1.055; P < 0.001], age (OR = 1...
August 19, 2017: Annals of Hematology
https://www.readbyqxmd.com/read/28823040/maternal-predictors-and-quality-of-umbilical-cord-blood-units
#5
Beata Bielec-Berek, Żaneta Jastrzębska-Stojko, Agnieszka Drosdzol-Cop, Cecylia Jendyk, Dariusz Boruczkowski, Tomasz Ołdak, Agnieszka Nowak-Brzezińska, Rafał Stojko
The aim of the study was to determine the relationship between the maternal age at delivery and selected properties of the cord blood stem cells. The study included 50 pregnant women aged between 18 and 38 years in which spontaneous labors or elective cesarean sections were performed. Umbilical cord blood was collected immediately after the women were delivered of newborns. The samples were analyzed in the Polish Stem Cells Bank in Warsaw. The highest mean WBC level (p < 0.05) was observed in the umbilical blood collected from patients aged 35 years and more...
August 19, 2017: Cell and Tissue Banking
https://www.readbyqxmd.com/read/28822997/18f-fdg-pet-ct-in-solitary-plasmacytoma-metabolic-behavior-and-progression-to-multiple-myeloma
#6
Domenico Albano, Giovanni Bosio, Giorgio Treglia, Raffaele Giubbini, Francesco Bertagna
PURPOSE: Solitary plasmacytoma (SP) is a rare plasma-cell neoplasm, which can develop both in skeletal and/or soft tissue and frequently progresses to multiple myeloma (MM). Our aim was to study the metabolic behavior of SP and the role of 18F-FDG-PET/CT in predicting progression to MM. MATERIALS AND METHODS: Sixty-two patients with SP who underwent 18F-FDG-PET/CT before any treatment were included. PET images were qualitatively and semiquantitatively analyzed by measuring the maximum standardized uptake value body weight (SUVbw), lean body mass (SUVlbm), body surface area (SUVbsa), metabolic tumor volume (MTV), total lesion glycolysis (TLG) and compared with age, sex, site of primary disease, and tumor size...
August 19, 2017: European Journal of Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28822992/low-dose-bisphenol-a-increases-bile-duct-proliferation-in-juvenile-rats-a-possible-evidence-for-risk-of-liver-cancer-in-the-exposed-population
#7
Ji Seong Jeong, Ki Taek Nam, Buhyun Lee, Aryo Dimas Pamungkas, Daeun Song, Minjeong Kim, Wook-Joon Yu, Jinsoo Lee, Sunha Jee, Youngja H Park, Kyung-Min Lim
Increasing concern is being given to the association between risk of cancer and exposure to low-dose bisphenol A (BPA), especially in young-aged population. In this study, we investigated the effects of repeated oral treatment of low to high dose BPA in juvenile Sprague-Dawley rats. Exposing juvenile rats to BPA (0, 0.5, 5, 50, and 250 mg/kg oral gavage) from post-natal day 9 for 90 days resulted in higher food intakes and increased body weights in biphasic dose-effect relationship. Male mammary glands were atrophied at high dose, which coincided with sexual pre-maturation of females...
August 21, 2017: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/28822991/aquatide-activation-of-sirt1-reduces-cellular-senescence-through-a-sirt1-foxo1-autophagy-axis
#8
Chae Jin Lim, Yong-Moon Lee, Seung Goo Kang, Hyung W Lim, Kyong-Oh Shin, Se Kyoo Jeong, Yang Hoon Huh, Suin Choi, Myungho Kor, Ho Seong Seo, Byeong Deog Park, Keedon Park, Jeong Keun Ahn, Yoshikazu Uchida, Kyungho Park
Ultraviolet (UV) irradiation is a relevant environment factor to induce cellular senescence and photoaging. Both autophagy- and silent information regulator T1 (SIRT1)-dependent pathways are critical cellular processes of not only maintaining normal cellular functions, but also protecting cellular senescence in skin exposed to UV irradiation. In the present studies, we investigated whether modulation of autophagy induction using a novel synthetic SIRT1 activator, heptasodium hexacarboxymethyl dipeptide-12 (named as Aquatide), suppresses the UVB irradiation-induced skin aging...
August 21, 2017: Biomolecules & Therapeutics
https://www.readbyqxmd.com/read/28822981/spectrum-of-lymphomas-across-different-drug-treatment-groups-in-rheumatoid-arthritis-a-european-registries-collaborative-project
#9
Louise K Mercer, Anne C Regierer, Xavier Mariette, William G Dixon, Eva Baecklund, Karin Hellgren, Lene Dreyer, Merete Lund Hetland, René Cordtz, Kimme Hyrich, Anja Strangfeld, Angela Zink, Helena Canhao, M Victoria Hernandez, Florence Tubach, Jacques-Eric Gottenberg, Jacques Morel, Jakub Zavada, Florenzo Iannone, Johan Askling, Joachim Listing
BACKGROUND: Lymphomas comprise a heterogeneous group of malignant diseases with highly variable prognosis. Rheumatoid arthritis (RA) is associated with a twofold increased risk of both Hodgkin's lymphoma (HL) and non-Hodgkin's lymphoma (NHL). It is unknown whether treatment with biologic disease-modifying antirheumatic drugs (bDMARDs) affect the risk of specific lymphoma subtypes. METHODS: Patients never exposed to (bionaïve) or ever treated with bDMARDs from 12 European biologic registers were followed prospectively for the occurrence of first ever histologically confirmed lymphoma...
August 19, 2017: Annals of the Rheumatic Diseases
https://www.readbyqxmd.com/read/28822872/different-mossy-fiber-sprouting-patterns-in-ilae-hippocampal-sclerosis-types
#10
Barbara Schmeiser, Jinmei Li, Armin Brandt, Josef Zentner, Soroush Doostkam, Thomas M Freiman
OBJECTIVE: Hippocampal sclerosis (HS) is the most prevalent pathology in temporal lobe epilepsy (TLE) characterized by segmental neuronal cell loss in the cornu ammonis (CA) 1-4. In addition, migration of granule cells and reorganization of their axons is observed, known as granule cell dispersion (GCD) and mossy fiber sprouting (MFS). The loss of mossy fibers` (MF) target cells in CA4 and CA3 was considered to be causative for MFS. The ILAE HS (International League Against Epilepsy) classification identifies three subtypes with different cell loss patterns in CA1-4...
August 8, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28822845/triphenyl-phosphonium-coated-nano-quercetin-for-oral-delivery-neuroprotective-effects-in-attenuating-age-related-global-moderate-cerebral-ischemia-reperfusion-injury-in-rats
#11
Swarupa Ghosh, Sibani Sarkar, Somsubhra T Choudhury, Tirtha Ghosh, Nirmalendu Das
Cerebral ischemia-reperfusion is a classical example of reactive oxygen species (ROS) mediated acute damage to brain. Post-ischemic reperfusion induced oxygen free radicals production causes damage to brain cell mitochondria. Antioxidants like quercetin (Qc) have potentials to manage oxidative stress related pathophysiology. However low oral bioavailability and poor cell membrane permeability restricts its therapeutic efficacy. To overcome these hurdles mitochondria specific delivery of Qc nanocapsules were designed to efficiently counteract cerebral ischemia-reperfusion induced cell death and neurodegeneration in young and aged rats...
August 16, 2017: Nanomedicine: Nanotechnology, Biology, and Medicine
https://www.readbyqxmd.com/read/28822830/chronic-kidney-disease-in-long-term-survivors-after-allogeneic-hematopoietic-stem-cell-transplantation-retrospective-analysis-at-a-single-institute
#12
Tomoyasu Jo, Yasuyuki Arai, Tadakazu Kondo, Toshiyuki Kitano, Masakatsu Hishizawa, Kouhei Yamashita, Akifumi Takaori-Kondo
The number of patients eligible for allogeneic stem cell transplantation (allo-HSCT) has increased because of improvements in transplantation procedures. Among long-term survivors of allo-HSCT, chronic kidney disease (CKD) is a major cause of morbidity. We retrospectively analyzed the clinical data of 106 consecutive patients with a median age of 43 (17-73) years who had undergone allo-HSCT at our institution between January 2001 and September 2009. Patients who died within 5 years after transplantation or had CKD at the time of transplantation were excluded in this study...
August 16, 2017: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/28822801/microarray-gene-expression-study-in-fibroblast-and-lymphoblastoid-cell-lines-from-antipsychotic-na%C3%A3-ve-first-episode-schizophrenia-patients
#13
Patricia Gassó, Sergi Mas, Natalia Rodríguez, Daniel Boloc, Susana García-Cerro, Miquel Bernardo, Amalia Lafuente, Eduard Parellada
Schizophrenia (SZ) is a chronic psychiatric disorder whose onset of symptoms occurs in late adolescence and early adulthood. The etiology is complex and involves important gene-environment interactions. Microarray gene-expression studies on SZ have identified alterations in several biological processes. The heterogeneity in the results can be attributed to the use of different sample types and other important confounding factors including age, illness chronicity and antipsychotic exposure. The aim of the present microarray study was to analyze, for the first time to our knowledge, differences in gene expression profiles in 18 fibroblast (FCLs) and 14 lymphoblastoid cell lines (LCLs) from antipsychotic-naïve first-episode schizophrenia (FES) patients and healthy controls...
August 5, 2017: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/28822740/is-dna-damage-indispensable-for-stress-induced-senescence
#14
REVIEW
Anna Bielak-Zmijewska, Grazyna Mosieniak, Ewa Sikora
Cellular senescence is a fundamental trait of many eukaryotic organisms. Senescent cells participate both in the developmental program and in normal ageing and age-related diseases. Senescence of proliferation-prone cells is a state of permanent cell cycle arrest accompanied by metabolic activity manifested by high secretion levels of numerous factors, including pro-inflammatory ones. It seems that cell senescence is a stress response. There are many intrinsic and extrinsic stress inducers which can elicit cell senescence...
August 16, 2017: Mechanisms of Ageing and Development
https://www.readbyqxmd.com/read/28822725/berberine-modulates-amyloid-%C3%AE-peptide-generation-by-activating-amp-activated-protein-kinase
#15
Haijing Zhang, Chunhui Zhao, Guoqiong Cao, Limin Guo, Shuai Zhang, Yuexia Liang, Chunxia Qin, Ping Su, Hang Li, Wensheng Zhang
Alzheimer's disease (AD) is an age-related neurodegenerative disorder characterized by memory deficits and cognitive decline. Excessive amyloid-β (Aβ) peptide aggregates and forms soluble oligomers and insoluble cerebral amyloid plaques, which is widely thought to be the underlying pathogenic mechanism of AD. Therefore, effective regulation of Aβ metabolism is an important aspect of preventing and improving AD. Berberine, which is the main active component of the traditional medicinal herb Coptidis rhizoma, has a positive effect on reducing Aβ levels...
August 16, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28822704/corneal-confocal-microscopy-and-dry-eye-findings-in-contact-lens-discomfort-patients
#16
Aysun Sanal Dogan, Canan Gurdal, Nese Arslan
OBJECTIVES: To evaluate the corneal confocal microscopy and dry eye findings in patients with contact lens discomfort. METHODS: The study included 3 groups of participants: Contact lens wearers using silicone hydrogel soft contact lenses who are symptomatic (CLD, n=15) or asymptomatic (ACL, n=11) and non-wearers as controls (n=14). Duration of contact lens wear, Ocular Surface Disease Index (OSDI) questionnaire responses, fluorescein tear break-uptime (FBUT), and corneal confocal microscopy findings were recorded...
August 16, 2017: Contact Lens & Anterior Eye: the Journal of the British Contact Lens Association
https://www.readbyqxmd.com/read/28822634/development-and-efficacy-testing-of-a-hollow-awl-that-leads-to-patent-bone-marrow-channels-and-greater-mesenchymal-stem-cell-mobilization-during-bone-marrow-stimulation-cartilage-repair-surgery
#17
Byoung-Hyun Min, Minh-Dung Truong, Hyung Keun Song, Jae Ho Cho, Do Young Park, Heon Ju Kweon, Jun Young Chung
PURPOSE: To investigate whether microfracture with a cannulated hollow awl can yield more patent marrow channels and allow greater mobilization of the reparable cells to the defect compared to the conventional awl with blunt end in human knee joints. METHODS: Patients who were planned for 1-stage bilateral total knee arthroplasty due to degenerative osteoarthritis with well-preserved lateral femoral condylar cartilage were retrospectively included. A 10-mm × 20-mm, rectangular, full-thickness chondral defect was made on the lateral femoral condyle on each knee joint...
August 16, 2017: Arthroscopy: the Journal of Arthroscopic & related Surgery
https://www.readbyqxmd.com/read/28822221/brain-plasticity-cognitive-functions-and-neural-stem-cells-a-pivotal-role-for-the-brain-specific-neural-master-gene-srgap2-fam72
#18
Nguyen Thi Thanh Ho, Arne Kutzner, Klaus Heese
Due to an aging society with an increased dementia-induced threat to higher cognitive functions, it has become imperative to understand the molecular and cellular events controlling the memory and learning processes in the brain. Here, we suggest that the novel master gene pair |-SRGAP2-FAM72-| (SLIT-ROBO Rho GTPase activating protein 2 - family with sequence similarity to 72) reveals a new dogma for the regulation of neural stem cell (NSC) gene expression and is a distinctive player in the control of human brain plasticity...
August 28, 2017: Biological Chemistry
https://www.readbyqxmd.com/read/28822162/-immune-regulation-effect-of-chinese-medicine-of-invigorating-spleen-and-kidney-detoxification-on-simian-immunodeficiency-virus-infected-rhesus-macaque
#19
Miao-Miao Zhang, Zhuo-Tao Fu, Jian-Tao Chen, Ye Cheng, Bo-Qiang Zhu, Lin-Chun Fu, Hong-Yan Zhou
To evaluate the effect of Chinese medicine of invigorating spleen and kidney detoxification on simian immunodeficiency virus-infected rhesus macaque. Eight SIV rhesus macaques of the same age were randomly divided into Chinese medicine of invigorating spleen and kidney detoxification group(hereinafter referred to as Chinese medicine group) and anti-virus drug(HAART) group. The traditional Chinese medicine and antiviral therapy were given for 8 weeks, and peripheral blood was collected for detection in every 4 weeks...
June 2017: Zhongguo Zhong Yao za Zhi, Zhongguo Zhongyao Zazhi, China Journal of Chinese Materia Medica
https://www.readbyqxmd.com/read/28821995/expression-of-the-pol-gene-of-human-endogenous-retroviruses-herv-k-and-w-in-leukemia-patients
#20
Massimiliano Bergallo, Paola Montanari, Katia Mareschi, Chiara Merlino, Massimo Berger, Ilaria Bini, Valentina Daprà, Ilaria Galliano, Franca Fagioli
The human endogenous retroviruses (HERVs) are a family of endogenous retroviruses that integrated into the germ cell DNA of primates over 30 million years ago. HERV expression seems impaired in several diseases, ranging from autoimmune to neoplastic disorders. The purpose of this study was to evaluate the overall endogenous retroviral transcription profile in bone marrow (BM) samples. A total of 30 paediatric high-risk leukaemia patients (lymphoid and myeloid malignancies) were tested for HERVs virus gene expression...
August 18, 2017: Archives of Virology
keyword
keyword
82765
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"