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https://www.readbyqxmd.com/read/28081468/role-of-mir-15a-in-intervertebral-disc-degeneration-through-targeting-map3k9
#1
Ping Cai, Ting Yang, Xingjie Jiang, Minghui Zheng, Gang Xu, Jianlong Xia
BACKGROUND: Accumulating evidence indicates that microRNAs are involved in various cellular processes, including cell proliferation, differentiation, apoptosis and metastasis. miR-15a is an important regulator of immune responses and angiogenesis, endogenous controls as well as potential targets and hallmarks of cancer. However, the role of miR-15a in intervertebral disc degeneration (IDD) has not been elucidated. METHODS: Total RNA was extracted from degenerative nucleus pulposus (NP) tissues of 20 patients with IDD and NP cells, respectively...
January 9, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28077621/functional-redundancy-and-non-redundancy-between-two-troponin-c-isoforms-in-drosophila-adult-muscles
#2
Maria B Chechenova, Sara Maes, Sandy T Oas, Cloyce Nelson, Kaveh G Kiani, Anton L Bryantsev, Richard M Cripps
We investigated the functional overlap of two muscle Troponin C (TpnC) genes that are expressed in the adult fruit fly, Drosophila melanogaster: TpnC4 is predominantly expressed in the indirect flight muscles (IFM), whereas TpnC41C is the main isoform in the tergal depressor of the trochanter muscle (TDT or jump muscle). Using CRISPR/Cas9, we created a transgenic line with a homozygous deletion of TpnC41C, and compared its phenotype to a line lacking functional TpnC4 We found that the removal of either of these genes leads to expression of the other isoform in both muscle types...
January 11, 2017: Molecular Biology of the Cell
https://www.readbyqxmd.com/read/28076865/gene-mapping-in-admixed-families-a-cautionary-note-on-the-interpretation-of-the-transmission-disequilibrium-test-and-a-possible-solution
#3
Xuexia Wang, Rui Xiao, Xiaofeng Zhu, Mingyao Li
A family-based study design is commonly used in gene mapping studies of complex human diseases. Most family-based studies use the transmission of alleles to assess evidence of association. It is generally believed that the transmission disequilibrium test (TDT) is robust against spurious association due to population stratification or admixture. While this is true when population stratification is due to discrete population structure, one should use the TDT-type methods with caution when they are applied to admixed populations in which population structure exists in local genomic regions...
2016: Human Heredity
https://www.readbyqxmd.com/read/28070015/inhaled-resveratrol-treatments-slow-ageing-related-degenerative-changes-in-mouse-lung
#4
Barbara Driscoll, Sonia Navarro, Raghava Reddy, Jooeun Lee, David Warburton
BACKGROUND: Lung ageing, a significant risk factor for chronic human lung diseases such as COPD and emphysema, is characterised by airspace enlargement and decreasing lung function. Likewise, in prematurely ageing telomerase null (terc-/-) mice, p53 stabilisation within diminishing numbers of alveolar epithelial type 2 cells (AEC2) accompanies reduced lung function. Resveratrol (RSL) is a plant phytoalexin that has previously showed efficacy in enhancing invertebrate longevity and supporting mammalian muscle metabolism when delivered orally...
January 9, 2017: Thorax
https://www.readbyqxmd.com/read/28068523/rs12941170-at-sox9-gene-associated-with-orofacial-clefts-in-chinese
#5
Zhong-Lin Jia, Sha He, Shu-Yuan Jiang, Bi-He Zhang, Shi-Jun Duan, Jia-Yu Shi, Ning Huang, Wen-Chao Zhu, Bing Shi
OBJECTIVE: Non-syndromic orofacial cleftings (NSOCs) are considered as complex trait, which results from genetic and/or environmental modifiers. Current findings could only explain small portion of the NSOCs. SOX9 gene plays an important role during craniofacial development in animal models and the Pierre Robin sequence (PRS). However, its role in non-syndromic clefts remains unknown. DESIGN: In this study, we selected eight SNPs in and around SOX9 gene to make maximum coverage, and genotyped them by using RFLP-PCR and ligase detection reaction (LDR) methods to test its associations among 151 NSOCs (53 NSCLP, 52 NSCLO and 46 NSCPO) from Western Han Chinese population...
December 30, 2016: Archives of Oral Biology
https://www.readbyqxmd.com/read/28061782/double-hit-lymphomas-clinical-morphological-immunohistochemical-and-cytogenetic-study-in-a-series-of-brazilian-patients-with-high-grade-non-hodgkin-lymphoma
#6
Cristiano Claudino Oliveira, Helena Maciel-Guerra, Luan Kucko, Eric Jun Hirama, Américo Delgado Brilhante, Francisco Carlos Quevedo, Isabela Werneck da Cunha, Fernando Augusto Soares, Ligia Niero-Melo, Patrícia Pintor Dos Reis, Maria Aparecida Custodio Domingues
BACKGROUND: Double-hit lymphomas (DHL) are rare high-grade neoplasms characterized by two translocations: one involving the gene MYC and another involving genes BCL2 or BCL6, whose diagnosis depends on cytogenetic examination. This research studied DHL and morphological and/or immunophenotypic factors associated with the detection of these translocations in a group of high-grade non-Hodgkin lymphoma cases. METHOD: Clinical and morphological reviews of 120 cases diagnosed with diffuse large B-cell lymphoma and Burkitt lymphoma were conducted...
January 7, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28060790/family-based-association-study-of-rs17300539-and-rs12495941-polymorphism-in-adiponectin-gene-and-polycystic-ovary-syndrome-in-a-chinese-population
#7
Xianchang Sun, Xingguo Wu, Yunmin Duan, Guanghai Liu, Xinyan Yu, Wenjuan Zhang
BACKGROUND Polycystic ovary syndrome (PCOS) is a complex disease that has both genetic and environmental components. Adiponectin plays an important role in the regulation of insulin sensitivity and insulin resistance (IR) in PCOS. The aim of this study was to determine 2 single-nucleotide polymorphisms (SNPs) variants (rs12495941 and rs17300539) of the adiponectin gene (ADIPOQ) in polycystic ovary syndrome (PCOS) families. MATERIAL AND METHODS We recruited 197 PCOS probands, their biological parents, and 192 controls...
January 6, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28053625/lipid-raft-integrity-is-required-for-survival-of-triple-negative-breast-cancer-cells
#8
Anil Badana, Madhuri Chintala, Gayathri Varikuti, Nagaseshu Pudi, Seema Kumari, Vijaya Rachel Kappala, Rama Rao Malla
PURPOSE: Lipid rafts are cholesterol enriched microdomains that colocalize signaling pathways involved in cell proliferation, metastasis, and angiogenesis. We examined the effect of methyl-β-cyclodextrin (MβCD)-mediated cholesterol extraction on the proliferation, adhesion, invasion, and angiogenesis of triple negative breast cancer (TNBC) cells. METHODS: We measured cholesterol and estimated cell toxicity. Detergent resistant membrane (DRM) and non-DRM fractions were separated using the OptiPrep gradient method...
December 2016: Journal of Breast Cancer
https://www.readbyqxmd.com/read/28011674/rare-genetic-variants-in-smap1-b3gat2-and-rims1-contribute-to-pediatric-venous-thromboembolism
#9
Frank Rühle, Anika Witten, Andrei Barysenka, Andreas Huge, Astrid Arning, Christine Heller, Anne Krümpel, Rolf Mesters, Andre Franke, Wolfgang Lieb, Mona Riemenschneider, Milan Hiersche, Verena Limperger, Ulrike Nowak-Göttl, Monika Stoll
Recent genome-wide association studies (GWAS) have confirmed known risk mutations for venous thromboembolism (VTE) and identified a number of novel susceptibility loci in adults. Here we present a GWAS in 212 nuclear families with pediatric VTE followed by targeted next generation sequencing (NGS) to identify causative mutations contributing to the association. Three SNPs exceeded the threshold for genome-wide significance as determined by permutation testing using 100.000 bootstrap permutations (p<10(-5))...
December 23, 2016: Blood
https://www.readbyqxmd.com/read/28007594/the-p20r-mutation-of-%C3%AE-b-crystallin-diminishes-its-anti-apoptotic-activity-in-human-lens-epithelial-cells
#10
Peiran Zhu, Weiwei Li, Mengxia Ni, Cui Zhang, Shuaimei Liu, Qiuyue Wu, Weijun Jiang, Jing Zhang, Mingchao Zhang, Xiaojun Li, Yingxia Cui, Chunyan Xue, Xinyi Xia
αB-crystallin acts as an anti-apoptosis protein in human lens epithelial (HLE) cells. We recently identified a missense mutation in αB-crystallin that changes proline 20 to an arginine (P20R) in a Chinese family with autosomal dominant congenital posterior polar cataract. The impact of the P20R mutation on the anti-apoptosis function remains unclear. To explore the anti-apoptotic activity of αB-crystallin wild type (αB-wt) and its P20R mutant under oxidative stress, HLE cells were transfected with αB-wt and αB-P20R constructs and expression was measured by western blotting...
December 19, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27966266/full-thickness-esophageal-regeneration-in-pig-using-a-polyurethane-mucosal-cell-seeded-graft
#11
Matthew R Barron, Ellen W Blanco, Johnathon M Aho, Jason Chakroff, Jed Johnson, Steve D Cassivi, William A Carey, Dennis A Wigle
Malignant esophageal pathology typically requires resection of a portion of esophagus. The aim of this study was to investigate attachment and growth of swine esophageal mucosal cells on electrospun synthetic nanofiber matrices of varying chemistries and to determine whether a mucosal-seeded graft, in a swine animal model, could induce regeneration. We isolated swine mucosal esophageal cells and seeded them onto five different matrix materials. Matrix samples were cultured for up to 14 days, after which matrices were analyzed for cell attachment...
December 14, 2016: Journal of Tissue Engineering and Regenerative Medicine
https://www.readbyqxmd.com/read/27935610/comparison-of-nanomedicine-based-chemotherapy-photodynamic-therapy-and-photothermal-therapy-using-reduced-graphene-oxide-for-the-model-system
#12
Jingjing Liu, Kai Liu, Liangzhu Feng, Zhuang Liu, Ligeng Xu
Given the complexity of tumors, several nanomaterial-based treatment modalities like chemotherapy (CT), photodynamic therapy (PDT) and photothermal therapy (PTT) have been developed for combating cancers. However, it is still unclear which strategy is better or how to select optimal approaches for combination treatment since each strategy has been investigated under different conditions. Inspired by its good payload capacity and unique near-infrared absorption, reduced graphene oxide (rGO) was selected in this study as the carrier for loading of doxorubicin (DOX), a chemotherapy drug, and chlorin e6 (Ce6), a photosensitizer...
December 9, 2016: Biomaterials Science
https://www.readbyqxmd.com/read/27900294/efficacy-of-autologous-leukocyte-reduced-platelet-rich-plasma-therapy-for-patellar-tendinopathy-in-a-rat-treadmill-model
#13
Mamoru Yoshida, Hiroki Funasaki, Keishi Marumo
BACKGROUND: An autologous platelet-rich plasma (PRP) therapy has currently been applied for the tendinopathy; however, its efficacy and an optimal platelets concentration in PRP were uncertain. We analyzed them in an animal model prepared using a repetitive running exercise. METHODS: We made the tendinopathy rat model of patellar tendon using a rodent treadmill machine. Rats with tendinopathy were injected with leukocyte-reduced PRP at the platelets concentration of 1...
April 2016: Muscles, Ligaments and Tendons Journal
https://www.readbyqxmd.com/read/27898654/effect-of-bone-marrow-mesenchymal-stem-cells-on-satellite-cell-proliferation-and-apoptosis-in-immobilization-induced-muscle-atrophy-in-rats
#14
Tie-Shan Li, Hao Shi, Lin Wang, Chuanzhu Yan
BACKGROUND Muscle atrophy due to disuse occurs along with adverse physiological and functional changes, but bone marrow stromal cells (MSCs) may be able to act as muscle satellite cells to restore myofibers. Thus, we investigated whether MSCs could enhance the proliferation of satellite cells and suppress myonuclear apoptosis during immobilization. MATERIAL AND METHODS We isolated, purified, amplified, and identified MSCs. Rats (n=48) were randomized into 3 groups: WB group (n=16), IM-PBS group (n=16), and IM-MSC (n=16)...
November 29, 2016: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/27893840/impact-of-prolonged-temporal-discrimination-threshold-on-finger-movements-of-parkinson-s-disease
#15
M J Lee, J S Son, J H Lee, S J Kim, C H Lyoo, M S Lee
INTRODUCTION: Sensory information is essential for the precise control of movement. Patients with Parkinson's disease (PD) have higher-order sensory dysfunctions including prolonged temporal discrimination threshold (TDT). However, the impact of prolonged TDT on parkinsonian motor deficits is uncertain. METHODS: This study includes 33 PD patients and 24 healthy controls. TDT values were measured in the index finger. Using coin rotation task (CRT), dexterous finger movement was assessed...
2016: PloS One
https://www.readbyqxmd.com/read/27884327/inhibition-of-c-jun-n-terminal-kinase-signaling-suppresses-skin-flap-apoptosis-in-a-rat-ischemia-and-or-reperfusion-model
#16
Ming Bai, Yifang Liu, Dechang Yin, Mingzi Zhang, Youbin Wang, Xuemei Ma, Yunqi Liu, Pengxiang Zhao
BACKGROUND: The goals of this study were to validate the role of c-Jun N-terminal kinase (JNK) activation in skin flap apoptosis in a rat model of abdomen skin ischemia and/or reperfusion (IR) and to compare the protective effect of SP600125 and hydrogen-rich saline in skin IR injury. METHODS: Male Sprague-Dawley rats were divided into five groups: one sham surgery group and four surgery groups. Before undergoing 3 h of IR management, the surgery groups were treated with normal saline (IR), dimethyl sulfoxide, SP600125 (SP), and hydrogen-rich saline (H)...
December 2016: Journal of Surgical Research
https://www.readbyqxmd.com/read/27857749/erythropoietin-reduces-apoptosis-of-brain-tissue-cells-in-rats-after-cerebral-ischemia-reperfusion-injury-a-characteristic-analysis-using-magnetic-resonance-imaging
#17
Chun-Juan Jiang, Zhong-Juan Wang, Yan-Jun Zhao, Zhui-Yang Zhang, Jing-Jing Tao, Jian-Yong Ma
Some in vitro experiments have shown that erythropoietin (EPO) increases resistance to apoptosis and facilitates neuronal survival following cerebral ischemia. However, results from in vivo studies are rarely reported. Perfusion-weighted imaging (PWI) and diffusion-weighted imaging (DWI) have been applied successfully to distinguish acute cerebral ischemic necrosis and penumbra in living animals; therefore, we hypothesized that PWI and DWI could be used to provide imaging evidence in vivo for the conclusion that EPO could reduce apoptosis in brain areas injured by cerebral ischemia/reperfusion...
September 2016: Neural Regeneration Research
https://www.readbyqxmd.com/read/27847927/family-association-study-of-transforming-growth-factor-beta1-gene-polymorphisms-in-schizophrenia
#18
Paweł Kapelski, Maria Skibińska, Małgorzata Maciukiewicz, Dorota Zaremba, Maria Jasiak, Joanna Hauser
OBJECTIVES: Schizophrenia is a serious mental illness with chronic symptoms and significant impairment in psychosocial functioning. An etiopathological role for immunologic abnormalities in schizophrenia was hypothesized. Inflammatory markers are well-known etiological factors for psychiatric disorders, including schizophrenia. Several studies have investigated the possible effects of antipsychotics on inflammation and neurogenesis. Additionally, antiinflammatory adjuvant therapy has been under investigation as a treatment option for schizophrenia...
2016: Psychiatria Polska
https://www.readbyqxmd.com/read/27836777/anticancer-effects-of-ixeris-dentata-thunb-ex-thunb-nakai-extract-on-human-melanoma-cells-a375p-and-a375sm
#19
Hae Nim Lee, Seong Ah Shin, Gang Sik Choo, Hyeong Jin Kim, Young Seok Park, Byung Kwon Park, Byeong Soo Kim, Sang Ki Kim, Sung Dae Cho, Jeong Seok Nam, Chang Sun Choi, Ji Youn Jung
ETHNOPHARMACOLOGICAL RELEVANCE: The plant species Taraxacum coreanum (TC), Youngia sonchifolia (YS), and Ixeris dentata (ID) belong to the family Compositae and are used for medicinal purposes in traditional medicine. However, the anticancer effects of TC, YS, and ID extracts and the underlying molecular mechanisms in melanoma cells have not been elucidated. AIM OF THE STUDY: To investigate the potential anticancer effects of TC, YS, and ID extracts on human melanoma cells and explore the potential pharmacological mechanisms in vitro and in vivo...
December 24, 2016: Journal of Ethnopharmacology
https://www.readbyqxmd.com/read/27830209/tear-deformation-time-and-optical-quality-in-eyes-wearing-silicone-hydrogel-contact-lenses
#20
Amir Asharlous, Ebrahim Jafarzadehpur, Ali Mirzajani, Mehdi Khabazkhoob, Samira Heydarian, Ali Taghipour
PURPOSE: To evaluate tear film stability and optical aberrations in eyes wearing plano Lotrafilcon B contact lenses (CL). METHODS: Tear Deformation Time (TDT) and aberrometric parameters were assessed in 86 normal emmetropic eyes before and 6 h after wearing CL. RESULT: A statistically significant decrease in TDT and increase in root mean square (RMS) values of higher order aberrations (HOA) were revealed 6 h after CL insertion (both P < 0...
December 2016: Journal of Current Ophthalmology
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