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https://www.readbyqxmd.com/read/29141362/-evaluation-of-the-psychological-feature-and-quality-of-life-in-outpatients-with-somatic-symptoms-disorder-in-a-general-hospital
#1
F H Cui, N N Xiong, X Hong, Y P Duan, J Wei
Objective: To explore the psychological features and quality of life in outpatients with somatic symptoms disorder in a general hospital. Methods: This cross-sectional study was conducted from 2014-05 to 2015-06. Patients diagnosed with major depressive disorder (MDD) and somatic symptoms disorder (SSD) were recruited from psychological outpatient department, and patients with peptic ulcer (PU) / reflux esophagitis (RE) were recruited from Gastroenterology. Depression scale of the patient health questionnaire (PHQ-9), Generalized Anxiety Disorder 7-item scale (GAD-7), Toronto Alexithymia scale (TAS), 12-item Short Form Health Survey (SF-12), items from Somatoform Disorder Screening Questionnaire were employed to evaluate the severity of depression, anxiety, alexithymia, quality of life, health care use and subjective feelings...
November 7, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/29141318/-ras-associated-autoimmune-leukoproliferative-disorder-a-report-of-2-cases-and-literature-review
#2
T Y He, C R Li, Y Xia, F F Liang, Y Luo, J Yang
Objective: To investigate the clinical features and genetic characteristics of cases with Ras-associated autoimmune leukoproliferative disorder(RALD). Method: Characteristics of clinical data and gene mutation of the first two cases in China with RALD were retrospectively analyzed. The related literature was searched by using search terms "NRAS" , "KRAS" or "RALD" . Result: Case1, a seven-year-seven-month old girl, was admitted due to "thrombocytopenia and splenomegaly for three years" . Palpation showed enlargement of submandibular lymph nodes and hepatosplenomegaly...
November 2, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/29141311/-study-on-mosaicism-of-scn1a-gene-mutation-in-parents-of-children-with-dravet-syndrome
#3
A J Liu, X X Yang, X J Xu, Q X Wu, X J Tian, X L Yang, X R Wu, L P Wei, Y H Zhang
Objective: To investigate the clinical phenotypes and the mutant allele proportion of parents with SCN1A gene mutation mosaicism of Dravet syndrome (DS) children, thus to provide guidance for family reproduction and prenatal diagnosis. Method: The clinical data and peripheral blood DNA samples of DS patients with a SCN1A gene mutation proved by Sanger sequencing were collected prospectively from February 2005 to November 2016 in Department of Pediatrics, Peking University First Hospital. The same mutation was searched in parents and other available relatives...
November 2, 2017: Zhonghua Er Ke za Zhi. Chinese Journal of Pediatrics
https://www.readbyqxmd.com/read/29141234/elevated-p53-activities-restrict-differentiation-potential-of-microrna-deficient-pluripotent-stem-cells
#4
Zhong Liu, Cheng Zhang, Maria Skamagki, Alireza Khodadadi-Jamayran, Wei Zhang, Dexin Kong, Chia-Wei Chang, Jingyang Feng, Xiaosi Han, Tim M Townes, Hu Li, Kitai Kim, Rui Zhao
Pluripotent stem cells (PSCs) deficient for microRNAs (miRNAs), such as Dgcr8(-/-) or Dicer(-/-) embryonic stem cells (ESCs), contain no mature miRNA and cannot differentiate into somatic cells. How miRNA deficiency causes differentiation defects remains poorly understood. Here, we report that miR-302 is sufficient to enable neural differentiation of differentiation-incompetent Dgcr8(-/-) ESCs. Our data showed that miR-302 directly suppresses the tumor suppressor p53, which is modestly upregulated in Dgcr8(-/-) ESCs and serves as a barrier restricting neural differentiation...
November 14, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/29141233/mirnome-profiling-of-purified-endoderm-and-mesoderm-differentiated-from-hescs-reveals-functions-of-mir-483-3p-and-mir-1263-for-cell-fate-decisions
#5
Daichi Ishikawa, Ulf Diekmann, Jan Fiedler, Annette Just, Thomas Thum, Sigurd Lenzen, Ortwin Naujok
Pluripotent stem cells hold great promise for regenerative medicine since they can differentiate into all somatic cells. MicroRNAs (miRNAs) could be important for the regulation of these cell-fate decisions. Profiling of miRNAs revealed 19 differentially expressed miRNAs in the endoderm and 29 in the mesoderm when analyzing FACS-purified cells derived from human embryonic stem cells. The mesodermal-enriched miR-483-3p was identified as an important regulator for the generation of mesodermal PDGFRA(+) paraxial cells...
November 14, 2017: Stem Cell Reports
https://www.readbyqxmd.com/read/29141053/clinical-and-prognostic-value-of-htert-mrna-expression-in-patients-with-non-small-cell-lung-cancer
#6
Marzena Zalewska-Ziob, Katarzyna Dobija-Kubica, Krzysztof Biernacki, Brygida Adamek, Janusz Kasperczyk, Krzysztof Bruliński, Zofia Ostrowska
Telomerase, undetectable in normal somatic cells, plays a critical role in carcinogenesis of the majority of human tumors including lung carcinoma. The aim of our study was to determine human telomerase reverse transcriptase (hTERT) mRNA expression in patients with non-small cell lung cancer (NSCLC) in order to estimate its usefulness as diagnostic and/or prognostic factor. hTERT expression was analyzed in a group of 12 females and 28 males with NSCLC using Quantitative Real-Time Polymerase Chain Reaction (QRT-PCR method) in cancerous and non-cancerous lung tissues...
November 15, 2017: Acta Biochimica Polonica
https://www.readbyqxmd.com/read/29140879/metastatic-endocervical-adenocarcinoma-in-a-mature-cystic-teratoma-a-case-of-a-tumor-to-tumor-metastasis
#7
Filipa Santos, Catarina Oliveira, João P Caldeira, Ana Coelho, Ana Félix
Tumor-to-tumor metastasis is a rare phenomenon defined as a to metastasis in a histologically distinct tumor. We report an unusual case of a 51-yr-old woman who presented with a cervical, bleeding lesion diagnosed as a poorly differentiated adenocarcinoma, HPV18+. Imaging studies revealed an unresectable cervical carcinoma with an associated left ovarian multicystic teratoma. A suspicious solid nodule within the teratoma was also reported. Bilateral salpingo-oophorectomy was performed before the cervical tumor was treated...
November 14, 2017: International Journal of Gynecological Pathology
https://www.readbyqxmd.com/read/29140276/clinical-profile-associated-with-adverse-childhood-experiences-the-advent-of-nervous-system-dysregulation
#8
Jorina Elbers, Cynthia R Rovnaghi, Brenda Golianu, Kanwaljeet J S Anand
BACKGROUND: We report the prevalence of children with multiple medical symptoms in a pediatric neurology clinic, describe their symptom profiles, and explore their association with adverse childhood experiences (ACEs). METHODS: We retrospectively reviewed 100 consecutive patients from an outpatient pediatric neurology clinic. Patients were included if they were ≥5 years old and reported ≥4 symptoms that were unexplained for ≥3-months. Symptom profiles across six functional domains were recorded: (1) executive dysfunction, (2) sleep disturbances, (3) autonomic dysregulation, (4) somatization, (5) digestive symptoms, and (6) emotional dysregulation...
November 15, 2017: Children
https://www.readbyqxmd.com/read/29140111/purging-exhausted-virus-specific-cd8-t-cell-phenotypes-by-somatic-cell-reprogramming
#9
Joshua Chan, Patrick Y Kim, Emiko Kranz, Yoshiko Nagaoka, YooJin Lee, Jing Wen, Heidi J Elsaesser, Meng Qin, David G Brooks, Gene-Errol Ringpis, Irvin S Y Chen, Masakazu Kamata
Cytotoxic T cells are critical in controlling virus infections. However, continuous antigen stimulation and negative regulatory factors cause CD8 T cells to enter a dysfunctional state (T cell exhaustion), resulting in viral persistence. We hypothesized that the exhausted T cell state could be molecularly rejuvenated using a somatic cell reprogramming technology, which is technically able to convert any types of cells to induced pluripotent stem cells (iPSCs), to regenerate functional T cells capable of purging chronic infection...
November 2017: AIDS Research and Human Retroviruses
https://www.readbyqxmd.com/read/29139355/-post-concussion-syndrome-is-a-neuro-cognitive-condition
#10
EDITORIAL
Line Kirstine Hauptmann, Mahmoud Ashkanian
Post-concussion syndrome (PCS) is often caused by an uncomplicated mild head injury but followed by long-lasting somatic, cognitive and psychiatric symptoms. For many years PCS has been an area of controversy between clinicians. New diagnostic techniques and clinical researches has shed light to some neurobiological aspects behind PCS. In Diagnostic and Statistical Manual of Mental Disorders V PCS is redefined as a neuro-cognitive condition emphasizing the importance of neuropsychological deficits among these patients...
November 13, 2017: Ugeskrift for Laeger
https://www.readbyqxmd.com/read/29139326/dna-polymerase-%C3%AE-mutational-signatures-are-found-in-a-variety-of-different-types-of-cancer
#11
Igor B Rogozin, Alexander Goncearenco, Artem G Lada, Subhajyoti De, German Nudelman, Anna R Panchenko, David N Cooper, Youri I Pavlov
DNA polymerase (pol) η is a specialized error-prone polymerase with at least two quite different and contrasting cellular roles: to mitigate the genetic consequences of solar UV irradiation, and promote somatic hypermutation in the variable regions of immunoglobulin genes. Misregulation and mistargeting of pol η can compromise genome integrity. We explored whether the mutational signature of pol η could be found in datasets of human somatic mutations derived from normal and cancer cells. A substantial excess of single and tandem somatic mutations within known pol η mutable motifs was noted in skin cancer as well as in many other types of human cancer, suggesting that somatic mutations in A:T bases generated by DNA polymerase η are a common feature of tumorigenesis...
November 15, 2017: Cell Cycle
https://www.readbyqxmd.com/read/29139129/reproductive-biology-of-female-striped-marlin-kajikia-audax-in-the-western-pacific-ocean
#12
H-Y Chang, C-L Sun, S-Z Yeh, Y-J Chang, N-J Su, G DiNardo
Length and mass data for 1260 (536 females, 683 males, 41 sex unknown) striped marlin Kajikia audax were collected at the fish markets of Tungkang, Singkang and Nanfangao from July 2004 to September 2010. Of these samples, 534 gonads (236 females and 298 males) ranging from 95 to 206 cm in eye-to-fork length (LEF ) and 8 to 88 kg in round mass (MR ), were collected. Chi-square tests indicated sex ratios were homogeneous among months in 2004 and 2006-2008, but not in 2005, 2009 and 2010; and there were significant differences in sex ratio by size...
November 15, 2017: Journal of Fish Biology
https://www.readbyqxmd.com/read/29138526/stimulation-of-primordial-follicle-assembly-by-estradiol-17%C3%AE-requires-the-action-of-bone-morphogenetic-protein-2-bmp2
#13
Prabuddha Chakraborty, Shyamal K Roy
Primordial follicle (PF) pool determines the availability of follicles for ovulation in all mammals. Premature depletion of the PF reserve leads to subfertility or infertility. Bone morphogenetic protein 2 (BMP2) promotes PF formation by facilitating oocyte and granulosa cell development. Estradiol-17β (E2) upregulates PF formation in developing hamster ovaries. However, if BMP2 mediates E2 effect is not known. We hypothesize that E2 facilitates the effect of BMP2 on somatic to granulosa cell transition. BMP2 and E2 together significantly upregulated the percentage of PFs in hamster fetal ovaries in vitro compared with either of the treatments alone...
November 14, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29138277/coupling-shrna-screens-with-single-cell-rna-seq-identifies-a-dual-role-for-mtor-in-reprogramming-induced-senescence
#14
Marieke Aarts, Athena Georgilis, Meryam Beniazza, Patrizia Beolchi, Ana Banito, Thomas Carroll, Marizela Kulisic, Daniel F Kaemena, Gopuraja Dharmalingam, Nadine Martin, Wolf Reik, Johannes Zuber, Keisuke Kaji, Tamir Chandra, Jesús Gil
Expression of the transcription factors OCT4, SOX2, KLF4, and cMYC (OSKM) reprograms somatic cells into induced pluripotent stem cells (iPSCs). Reprogramming is a slow and inefficient process, suggesting the presence of safeguarding mechanisms that counteract cell fate conversion. One such mechanism is senescence. To identify modulators of reprogramming-induced senescence, we performed a genome-wide shRNA screen in primary human fibroblasts expressing OSKM. In the screen, we identified novel mediators of OSKM-induced senescence and validated previously implicated genes such as CDKN1A We developed an innovative approach that integrates single-cell RNA sequencing (scRNA-seq) with the shRNA screen to investigate the mechanism of action of the identified candidates...
November 14, 2017: Genes & Development
https://www.readbyqxmd.com/read/29138054/keratinocyte-sonic-hedgehog-up-regulation-drives-the-development-of-giant-congenital-nevi-via-paracrine-endothelin-1-secretion
#15
Arash Chitsazan, Blake Ferguson, Rehan Villani, Herlina Y Handoko, Pamela Mukhopadhyay, Brian Gabrielli, Wolter J Mooi, H Peter Soyer, Duncan Lambie, Kiarash Khosrotehrani, Grant Morahan, Graeme J Walker
Giant congenital nevi are associated with clinical complications such as neurocutaneous melanosis and melanoma. Virtually nothing is known about why some individuals develop these lesions. We previously identified the sonic hedgehog (Shh) pathway regulator Cdon as a candidate nevus modifier gene. Here we validate this by studying Cdon knockout mice, and go on to establishment the mechanism by which Shh exacerbates nevogenesis. Cdon knockout mice develop blue nevi without the need for somatic melanocyte oncogenic mutation...
November 11, 2017: Journal of Investigative Dermatology
https://www.readbyqxmd.com/read/29137951/triple-negative-breast-cancer-stem-cells-and-african-ancestry
#16
REVIEW
Evelyn Jiagge, Dhananjay Chitale, Lisa A Newman
Triple-negative breast cancers (TNBC) are more common among African ancestry populations, such as African Americans and western, sub-Saharan Africans, compared to European ancestry populations. This phenotype prevalence contributes to breast cancer outcome disparities between African Americans and Caucasian Americans. Breast cancer stem cells represent the tumor subpopulation responsible for metastatic virulence and ongoing research seeks to characterize the extent to which TNBC versus non-TNBC stem cells may differ...
November 11, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/29137651/abnormal-dendritic-calcium-activity-and-synaptic-depotentiation-occur-early-in-a-mouse-model-of-alzheimer-s-disease
#17
Yang Bai, Miao Li, Yanmei Zhou, Lei Ma, Qian Qiao, Wanling Hu, Wei Li, Zachary Patrick Wills, Wen-Biao Gan
BACKGROUND: Alzheimer's disease (AD) is characterized by amyloid deposition, tangle formation as well as synapse loss. Synaptic abnormalities occur early in the pathogenesis of AD. Identifying early synaptic abnormalities and their underlying mechanisms is likely important for the prevention and treatment of AD. METHODS: We performed in vivo two-photon calcium imaging to examine the activities of somas, dendrites and dendritic spines of layer 2/3 pyramidal neurons in the primary motor cortex in the APPswe/PS1dE9 mouse model of AD and age-matched wild type control mice...
November 14, 2017: Molecular Neurodegeneration
https://www.readbyqxmd.com/read/29137632/descriptive-study-of-interprofessional-collaboration-between-physicians-and-osteopaths-for-the-pediatric-population-in-quebec-canada
#18
Chantal Morin, Johanne Desrosiers, Isabelle Gaboury
BACKGROUND: Osteopathy is an increasingly popular healthcare approach that uses a wide variety of therapeutic manual techniques to address pain and somatic dysfunction. In Quebec, Canada, osteopathy is the complementary medicine most often recommended by family physicians. However, factors fostering the development of interprofessional collaboration (IPC) between physicians and osteopaths are unknown. This study aimed to describe the current situation in terms of IPC among practitioners working with pediatric patients...
November 14, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/29137431/mitochondrial-dna-depletion-mitochondrial-mutations-and-high-tfam-expression-in-hepatocellular-carcinoma
#19
Lihua Qiao, Guoqing Ru, Zhuochao Mao, Chenghui Wang, Zhipeng Nie, Qiang Li, Yiyi Huang-Yang, Ling Zhu, Xiaoyang Liang, Jialing Yu, Pingping Jiang
We investigated the role of mitochondrial genetic alterations in hepatocellular carcinoma by directly comparing the mitochondrial genomes of 86 matched pairs of HCC and non-tumor liver samples. Substitutions in 637 mtDNA sites were detected, comprising 89.80% transitions and 6.60% transversions. Forty-six somatic variants, including 15 novel mutations, were identified in 40.70% of tumor tissues. Of those, 21 were located in the non-coding region and 25 in the protein-coding region. Twenty-two somatic nonsynonymous changes were identified as putative pathogenic variants, including 4 truncating mutations produced by three frameshifts (MT-ATP6 8628 insC; MT-ND5 13475 T-del, and MT-CYB 14984 insA) and 1 nonsense mutation in MT-CO3 9253 G>A...
October 13, 2017: Oncotarget
https://www.readbyqxmd.com/read/29137422/pkm2-can-enhance-pluripotency-in-escs-and-promote-somatic-cell-reprogramming-to-ipscs
#20
Shengtang Qin, Danli Yang, Kang Chen, Haolan Li, Liqiang Zhang, Yuan Li, Rongrong Le, Xiaojie Li, Shaorong Gao, Lan Kang
Aerobic glycolysis is one of the most important common characteristics in both cancer cells and stem cells. Metabolism switch has been discovered as an important early event in the process of reprogramming somatic cells to induced pluripotent stem cells (iPSCs). As a rate limiting kinase in glycolysis, Pkm2 has been reported playing critical roles in many tumors, yet its role in stem cells and iPSCs induction is poorly defined. In the present study, we showed that Pkm2 is a predominant pyruvate kinase in embryonic stem cells (ESCs), and its expression increases many pluripotent genes...
October 13, 2017: Oncotarget
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