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https://www.readbyqxmd.com/read/29330136/white-matter-volume-loss-in-amyotrophic-lateral-sclerosis-a-meta-analysis-of-voxel-based-morphometry-studies
#1
REVIEW
Guangxiang Chen, Baiwan Zhou, Hongyan Zhu, Weihong Kuang, Feng Bi, Hua Ai, Zhongwei Gu, Xiaoqi Huang, Su Lui, Qiyong Gong
Structural neuroimaging studies of white matter (WM) volume in amyotrophic lateral sclerosis (ALS) using voxel-based morphometry (VBM) have yielded inconsistent findings. This study aimed to perform a quantitative voxel-based meta-analysis using effect-size signed differential mapping (ES-SDM) to establish a statistical consensus between published studies for WM volume alterations in ALS. The pooled meta-analysis revealed significant WM volume losses in the bilateral supplementary motor areas (SMAs), bilateral precentral gyri (PGs), left middle cerebellar peduncle and right cerebellum in patients with ALS, involving the corticospinal tract (CST), interhemispheric fibers, subcortical arcuate fibers, projection fibers to the striatum and cortico-ponto-cerebellar tract...
January 9, 2018: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/29328866/proteoglycans-as-immunomodulators-of-the-innate-immune-response-to-lung-infection
#2
Inkyung Kang, Mary Y Chang, Thomas N Wight, Charles W Frevert
Proteoglycans (PGs) are complex, multifaceted molecules that participate in diverse interactions vital for physiological and pathological processes. As structural components, they provide a scaffold for cells and structural organization that helps define tissue architecture. Through interactions with water, PGs enable molecular and cellular movement through tissues. Through selective ionic interactions with growth factors, chemokines, cytokines, and proteases, PGs facilitate the ability of these soluble ligands to regulate intracellular signaling events and to influence the inflammatory response...
January 1, 2018: Journal of Histochemistry and Cytochemistry: Official Journal of the Histochemistry Society
https://www.readbyqxmd.com/read/29326060/ovulation-is-associated-with-the-lh-dependent-induction-of-pla2g4aa-in-zebrafish
#3
Haipei Tang, Le Wang, Yu Chen, Jianan He, Ling Qu, Yin Guo, Yun Liu, Xiaochun Liu, Haoran Lin
The effects of the preovulatory luteinizing hormone (LH) surge on the ovulatory process are mediated by prostaglandins (PGs), the synthesis of which involves prostaglandin synthetase and cytosolic phospholipase A2 (cPLA2). In our previous study, we systematically investigated the function of prostaglandin endoperoxide synthase (ptgs) genes on ovulation in zebrafish. However, the role of cPLA2 in ovulation was not determined in zebrafish. In this study, we investigated the function of cpla2α in PGs production and ovulation in periovulatory follicles...
January 8, 2018: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/29325267/-analysis-of-clinical-outcomes-of-different-embryo-stage-biopsy-in-array-comparative-genomic-hybridization-based-preimplantation-genetic-diagnosis-and-screening
#4
J D Shen, W Wu, L Shu, L L Cai, J Z Xie, L Ma, X P Sun, Y G Cui, J Y Liu
Objective: To evaluate the efficiency of the application of array comparative genomic hybridization (array-CGH) in preimplantation genetic diagnosis or screening (PGD/PGS), and compare the clinical outcomes of different stage embryo biopsy. Methods: The outcomes of 381 PGD/PGS cycles referred in the First Affiliated Hospital of Nanjing Medical University from July 2011 to August 2015 were retrospectively analyzed. There were 320 PGD cycles with 156 cleavage-stage-biopsy cycles and 164 trophectoderm-biopsy cycles, 61 PGS cycles with 23 cleavage-stage-biopsy cycles and 38 trophectoderm-biopsy cycles...
December 25, 2017: Zhonghua Fu Chan Ke za Zhi
https://www.readbyqxmd.com/read/29322020/a-reappraisal-of-vascular-anatomy-of-the-parathyroid-gland-based-on-fluorescence-techniques
#5
REVIEW
Samira Mercedes Sadowski, Jordi Vidal Fortuny, Frederic Triponez
Identification of the parathyroid glands (PGs) during thyroid surgery may prevent their inadvertent surgical removal and prevent postoperative hypoparathyroidism. However, identification of the PGs does not guarantee their function, and their vascular supply needs to be preserved as well. The recent introduction of intraoperative indocyanine green (ICG) fluorescent angiography of the PGs during thyroid surgery allows for the appraisal of the vascular anatomy and evaluation of PG function. The use of this tool could lead to a significant reduction in the rate of postoperative hypoparathyroidism, as it allows surgeons to adapt their surgical technique for the preservation of the PGs...
December 2017: Gland Surgery
https://www.readbyqxmd.com/read/29322019/to-identify-or-not-to-identify-parathyroid-glands-during-total-thyroidectomy
#6
REVIEW
Yuk Kwan Chang, Brian H H Lang
Hypoparathyroidism is one of the most common complications after total thyroidectomy and may impose a significant burden to both the patient and clinician. The extent of thyroid resection, surgical techniques, concomitant central neck dissection, parathyroid gland (PG) autotransplantation and inadvertent parathyroidectomy have long been some of the risk factors for postoperative hypoparathyroidism. Although routine identification of PGs has traditionally been advocated by surgeons, recent evidence has suggested that perhaps identifying fewer number of in situ PGs during surgery (i...
December 2017: Gland Surgery
https://www.readbyqxmd.com/read/29320632/increasing-the-stability-of-recombinant-human-green-cone-pigment
#7
Timothy S Owen, David Salom, Wenyu Sun, Krzysztof Palczewski
Three types of cone cells exist in the human retina, each containing a different pigment responsible for the initial step of photo-transduction. These pigments are distinguished by their specific absorbance maxima, 425 nm (blue), 530 nm (green) and 560 nm (red). Each pigment contains a common chromophore, 11-cis-retinal covalently bound to an opsin protein via a Schiff base. The 11-cis-retinal protonated Schiff base has an absorbance maxima at 440 nm in methanol. Unfortunately, the chemistry allowing the same chromophore interacting with different opsin proteins to tune the absorbance of the resulting pigments to distinct λmax values is poorly understood...
January 10, 2018: Biochemistry
https://www.readbyqxmd.com/read/29317471/gene-identification-of-pheromone-gland-genes-involved-in-type-ii-sex-pheromone-biosynthesis-and-transportation-in-female-tea-pest-ectropis-grisescens
#8
Zhao-Qun Li, Long Ma, Qian Yin, Xiao-Ming Cai, Zong-Xiu Luo, Lei Bian, Zhao-Jun Xin, Peng He, Zong-Mao Chen
Moths can biosynthesize sex pheromones in the female sex pheromone glands (PGs) and can distinguish species-specific sex pheromones using their antennae. However, the biosynthesis and transportation mechanism for Type II sex pheromone components has rarely been documented in moths. In this study, we constructed a massive PG transcriptome database (14.72 giga bases) from a moth species, Ectropisgrisescens, which uses Type II sex pheromones and is a major tea pest in China. We further identified the putative sex pheromone biosynthesis and transportation related genes: 111 cytochrome P450 monooxygenases (P450s, CYPs), 25 odorant binding proteins (OBPs), and 20 chemosensory proteins (CSPs)...
January 9, 2018: G3: Genes—Genomes—Genetics
https://www.readbyqxmd.com/read/29315321/inner-cell-mass-incarceration-in-8-shaped-blastocysts-does-not-increase-monozygotic-twinning-in-preimplantation-genetic-diagnosis-and-screening-patients
#9
Yi-Fan Gu, Qin-Wei Zhou, Shuo-Ping Zhang, Chang-Fu Lu, Fei Gong, Yue-Qiu Tan, Guang-Xiu Lu, Ge Lin
BACKGROUND: The use of assisted reproductive technology (ART) has been reported to increase the incidence of monozygotic twinning (MZT) compared with the incidence following natural conception. It has been hypothesized that splitting of the inner cell mass (ICM) through a small zona hole may result in MZT. In this study, using a cohort of patients undergoing preimplantation genetic diagnosis/screening (PGD/PGS), we compared the clinical and neonatal outcomes of human 8-shaped blastocysts hatching with ICM incarceration with partially or fully hatched blastocysts, and attempted to verify whether this phenomenon increases the incidence of MZT pregnancy or negatively impact newborns...
2018: PloS One
https://www.readbyqxmd.com/read/29314083/tree-hydraulic-traits-are-co-ordinated-and-strongly-linked-to-climate-of-origin-across-a-rainfall-gradient
#10
Ximeng Li, Chris J Blackman, Brendan Choat, Remko A Duursma, Paul D Rymer, Belinda E Medlyn, David T Tissue
Plant hydraulic traits capture the impacts of drought stress on plant function, yet vegetation models lack sufficient information regarding trait coordination and variation with climate-of-origin across species. Here, we investigated key hydraulic and carbon economy traits of 12 woody species in Australia from a broad climatic gradient, with the aim of identifying the coordination among these traits and the role of climate in shaping cross-species trait variation. The influence of environmental variation was minimized by a common garden approach, allowing us to factor out the influence of environment on phenotypic variation across species...
January 4, 2018: Plant, Cell & Environment
https://www.readbyqxmd.com/read/29305840/a-rapid-method-for-identification-and-quantification-of-prostaglandins-in-cerebral-tissues-by-hplc-esi-ms-ms-for-the-lipidomic-in-vivo-studies
#11
Luciana Assis Gobo, Leandro Machado de Carvalho, Fernanda Temp, Carine Viana, Carlos Fernando Mello
An analytical method utilizing liquid chromatography coupled to mass spectrometry with electrospray ionization has been developed for the identification of prostaglandins (PGs) in cerebral tissues. The five compounds identified (thromboxane B2, prostaglandin E2, prostaglandin D2, 6-keto-prostaglandin F1 alpha and prostaglandin F2 alpha) are cellular mediators of inflammation and are involved in a variety of physiological and pathological processes by acting on membrane receptors on the surfaces of target cells...
January 3, 2018: Analytical Biochemistry
https://www.readbyqxmd.com/read/29302480/comparison-of-indocyanine-green-fluorescence-and-parathyroid-autofluorescence-imaging-in-the-identification-of-parathyroid-glands-during-thyroidectomy
#12
Bora Kahramangil, Eren Berber
Background: Indocyanine green fluorescence (ICGF) and parathyroid autofluorescence (AF) are two new techniques that aid in the identification of parathyroid glands (PG) intraoperatively during thyroidectomy. There is no study comparing the efficacy of these techniques. Methods: This was an IRB-approved clinical study comparing the utility of ICGF and AF for identification of PGs during thyroidectomy. Data were collected prospectively. Both techniques were compared to naked eye (NE) for PG detection...
December 2017: Gland Surgery
https://www.readbyqxmd.com/read/29297862/estimate-of-the-prevalence-of-subjects-with-gambling-related-problems-requiring-treatment-a-study-in-northern-italy
#13
Raimondo Maria Pavarin, Corrado Zenesini, Angelo Fioritti
This study analyzes the data related to subjects who for the first time turned to a hospital or to a Public Treatment Service Dedicated to Drug Addicts or to a Community Mental Health Center for problems related to pathological gambling in the metropolitan area of Bologna (Northern Italy) in the period 2000/2015. The aims were to describe characteristics and problems of pathological gamblers (PGs), and to estimate the prevalence of PGs using the capture-recapture method. Four hundred and ninety-five residents were identified, with an estimate of 1570 PGs and a prevalence of 1...
October 2017: Annali Dell'Istituto Superiore di Sanità
https://www.readbyqxmd.com/read/29287445/phospholipids-composition-and-molecular-species-of-large-yellow-croaker-pseudosciaena-crocea-roe
#14
Peng Liang, Ruifen Li, He Sun, Min Zhang, Wenjian Cheng, Lijiao Chen, Xinwei Cheng, Casimir C Akoh
The research aims to study phospholipids (PL) classes and molecular species of large yellow croaker (Pseudosciaena crocea) roe. Both gas chromatographymass spectroscopy (GC-MS) and high-performance liquid chromatography with evaporative light-scattering detection (HPLC-ELSD) were utilized to analyze and identify the PLs fatty acids compositions and classes in the P. crocea roe, respectively. Docosahexaenoic acid (DHA, C22:6) and eicosapentaenoic acid (EPA, C20:5) account for 35.0% and 6.9% of the PLs. Phosphatidylcholines (PC), lysophosphatidylcholines (LPC), phosphatidylethanolamines (PE) and phosphatidylinositols (PI) account for 76...
April 15, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29277722/the-pathogenic-roles-of-heparan-sulfate-deficiency-in-hereditary-multiple-exostoses
#15
REVIEW
Maurizio Pacifici
Heparan sulfate (HS) is an essential component of cell surface and matrix proteoglycans (HS-PGs) that include syndecans and perlecan. Because of their unique structural features, the HS chains are able to specifically interact with signaling proteins -including bone morphogenetic proteins (BMPs)- via their HS-binding domain, regulating protein availability, distribution and action on target cells. Hereditary Multiple Exostoses (HME) is a rare pediatric disorder linked to germline heterozygous loss-of-function mutations in EXT1 or EXT2 that encode Golgi-resident glycosyltransferases responsible for HS synthesis, resulting in a systemic HS deficiency...
December 22, 2017: Matrix Biology: Journal of the International Society for Matrix Biology
https://www.readbyqxmd.com/read/29276605/tyramine-functionalization-of-poly-glycerol-sebacate-increases-the-elasticity-of-the-polymer
#16
Xiaochu Ding, Yen-Lin Wu, Jin Gao, Albin Wells, Keewon Lee, Yadong Wang
Poly(glycerol sebacate) (PGS) is an elastomer used widely in tissue engineering studies due to good biocompatibility. Hereby we report a tyramine functionalized PGS called PGS-TA. Tyramine adds a stronger physical bonding capability to PGS-TA. Tensile tests showed that the softness and toughness of the material were similar to PGS. However, PGS-TA demonstrated 16-folds increase of elastic deformations compared to PGS processed under identical conditions. The in vitro studies demonstrated that the viability, and metabolic activity of baboon smooth muscle cells were the same as those on tissue culture polystyrene...
August 14, 2017: Journal of Materials Chemistry. B, Materials for Biology and Medicine
https://www.readbyqxmd.com/read/29275324/use-of-clinical-vignette-questionnaires-to-investigate-the-variation-in-management-of-keratoconjunctivitis-sicca-and-acute-glaucoma-in-dogs
#17
Constance N White, Martin J Downes, Gareth Jones, Corinne Wigfall, Rachel S Dean, Marnie L Brennan
There is little peer-reviewed research assessing therapeutic effectiveness in canine eye disease. Current treatments used in first opinion and ophthalmology referral practices are also somewhat poorly documented. The aim of this study was to investigate the current management of canine keratoconjunctivitis sicca (KCS) and acute primary angle-closure glaucoma (PACG) by veterinary surgeons. Questionnaires using clinical vignettes were administered to a cross section of general practitioners ('GPs') and veterinarians engaged in or training for postgraduate ophthalmology practice ('PGs')...
December 23, 2017: Veterinary Record
https://www.readbyqxmd.com/read/29273862/heterorhizy-and-fine-root-architecture-of-rabbiteye-blueberry-vaccinium-virgatum-softwood-cuttings
#18
Takashi Baba, Satoshi Nakaba, Satoshi Noma, Ryo Funada, Takuya Ban
All fine root systems consist of individual fine roots. Individual roots have morphological, anatomical, and functional heterogeneity (heterorhizy). Heterorhizy plays crucial roles in plant ecosystems. However, in many species, the heterorhizy and fine root system architecture based on individual root units are unclear. This study investigated heterorhizy along the root system architecture of Vaccinium virgatum Ait (rabbiteye blueberry) softwood-cuttings (propagated from annual shoots in growing season) using protoxylem groups (PGs), a classification according to the number of protoxylem poles, as an indicator of individual root traits...
December 22, 2017: Journal of Plant Research
https://www.readbyqxmd.com/read/29273512/recombinant-m2e-ha2-fusion-protein-induced-immunity-responses-against-intranasally-administered-h9n2-influenza-virus
#19
Mehdi Golchin, Masoud Moghadaszadeh, Hadi Tavakkoli, Reza Ghanbarpour, Siavoush Dastmalchi
Influenza is a highly contagious respiratory tract disease and is considered a serious community health problem. Influenza viruses possess multiple conserved epitopes which are used for designing universal vaccines. To this aim, the gene coding for N-terminal part of M2e (SLLTEVET) and HA2 (GLFGAIAGF), was synthesized, linked by a (Gly4Ser)4 peptide linker, and cloned into pGS-21a vector. Afterwards, the construct was transferred into E. coli BL21 (DE3) cells to produce the designed antigenic protein called M2e-HA2...
December 19, 2017: Microbial Pathogenesis
https://www.readbyqxmd.com/read/29262509/-efficacy-of-weitan-waifu-patch-on-the-postsurgical-gastroparesis-syndrome-of-gastrointestinal-cancer-a-multi-center-trial
#20
Q Zhou, M H Zuo, Q W Li, Y T Tian, Y B Xie, Y B Wang, G Y Yang, Y J Ye, P Guo, J P Liu, Z L Liu, C An, T Zhou, Z Tian, C B Liu, Y Hu, X Y Chi, Y Shen, Y Xia, K W Hu
Objective: To investigate the safety and efficacy of the Weitan Waifu patch on the postsurgical gastroparesis syndrome (PGS) of gastrointestinal cancer. Methods: The multi-center, double-blind, randomized controlled trial was conducted with superiority design. Patients with PGS of gastrointestinal cancer diagnosed in 4 AAA hospitals and the abdominal symptom manifested as cold syndrome by Chinese local syndrome differentiation were recruited. These patients were randomly divided into two groups according to 1∶1 proportion...
December 23, 2017: Zhonghua Zhong Liu za Zhi [Chinese Journal of Oncology]
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