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https://www.readbyqxmd.com/read/28634345/sirtuin-3-deficiency-does-not-alter-host-defenses-against-bacterial-and-fungal-infections
#1
Eleonora Ciarlo, Tytti Heinonen, Jérôme Lugrin, Hans Acha-Orbea, Didier Le Roy, Johan Auwerx, Thierry Roger
Sirtuin 3 (SIRT3) is the main mitochondrial deacetylase. SIRT3 regulates cell metabolism and redox homeostasis, and protects from aging and age-associated pathologies. SIRT3 may drive both oncogenic and tumor-suppressive effects. SIRT3 deficiency has been reported to promote chronic inflammation-related disorders, but whether SIRT3 impacts on innate immune responses and host defenses against infections remains essentially unknown. This aspect is of primary importance considering the great interest in developing SIRT3-targeted therapies...
June 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28633440/low-alanine-aminotransferase-levels-in-the-elderly-frailty-disability-sarcopenia-and-reduced-survival
#2
Umberto Vespasiani-Gentilucci, Antonio De Vincentis, Luigi Ferrucci, Stefania Bandinelli, Raffaele Antonelli Incalzi, Antonio Picardi
Background: Although low alanine aminotransferase (ALT) levels have been associated with poor outcomes in the elderly, the determinants subtending this association have been poorly explored. To gain insight into this topic, we analyzed data from a prospective population-based database (InCHIANTI study) in which frailty, disability, sarcopenia and pyridoxine levels were systematically assessed. Methods: Data are from 765 participants aged >65 years (mean age 75...
June 19, 2017: Journals of Gerontology. Series A, Biological Sciences and Medical Sciences
https://www.readbyqxmd.com/read/28633097/results-of-the-first-international-hiv-1-coreceptor-proficiency-panel-test
#3
Eva Heger, Rolf Kaiser, Elena Knops, Maria Neumann-Fraune, Eugen Schuelter, Alejandro Pironti, Thomas Lengauer, Hauke Walter, Saleta Sierra
BACKGROUND: Quality Assurance (QA) programs are essential to evaluate performance in diagnostics laboratories. OBJECTIVES: We present the results from the first QA for HIV-1 genotypic tropism testing, organized and coordinated by the Institute of Virology at the University of Cologne. STUDY DESIGN: 12 cell culture-derived viral strains of different HIV-1 clades from the NIH AIDS Reagent Program were sent to the participants to be processed with their standard diagnostic methods Fasta files containing the V3 region sequence were centrally analyzed at the Institute of Virology, Cologne...
June 10, 2017: Journal of Clinical Virology: the Official Publication of the Pan American Society for Clinical Virology
https://www.readbyqxmd.com/read/28631112/risk-of-revision-was-not-reduced-by-a-double-bundle-acl-reconstruction-technique-results-from-the-scandinavian-registers
#4
Cathrine Aga, Jüri-Tomas Kartus, Martin Lind, Stein Håkon Låstad Lygre, Lars-Petter Granan, Lars Engebretsen
BACKGROUND: Double-bundle anterior cruciate ligament (ACL) reconstruction has demonstrated improved biomechanical properties and moderately better objective outcomes compared with single-bundle reconstructions. This could make an impact on the rerupture rate and reduce the risk of revisions in patients undergoing double-bundle ACL reconstruction compared with patients reconstructed with a traditional single-bundle technique. The National Knee Ligament Registers in Scandinavia provide information that can be used to evaluate the revision outcome after ACL reconstructions...
June 19, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28630065/ccr5-is-involved-in-interruption-of-pregnancy-in-mice-infected-with-toxoplasma-gondii-during-early-pregnancy
#5
Maki Nishimura, Kousuke Umeda, Masayuki Suwa, Hidefumi Furuoka, Yoshifumi Nishikawa
Toxoplasmosis can cause abortion in pregnant humans and other animals; however, the mechanism of abortion remains unknown. C-C chemokine receptor type 5 (CCR5) is essential for host defense in T. gondii infection. To investigate the relationship between CCR5 and abortion in toxoplasmosis, we inoculated wild-type and CCR5-deficient (CCR5(-/-)) mice with T. gondii tachyzoites intraperitoneally on day 3 of pregnancy (E3). The pregnancy rate decreased as pregnancy progressed in the infected wild-type mice. Histopathologically, no inflammatory lesions were observed in the fetoplacental tissues...
June 19, 2017: Infection and Immunity
https://www.readbyqxmd.com/read/28629584/association-of-vitamin-d-intake-and-serum-levels-with-fertility-results-from-the-lifestyle-and-fertility-study
#6
June L Fung, Terryl J Hartman, Rosemary L Schleicher, Marlene B Goldman
OBJECTIVE: To evaluate the role of vitamin D intake and serum levels on conception of clinical pregnancy and live birth. DESIGN: Prospective cohort study. SETTING: Academic medical centers. PATIENT(S): Healthy, nulliparous women, age 18-39 years, and their male partners. INTERVENTION(S): None. MAIN OUTCOME MEASURE(S): Clinical pregnancy and live birth were compared between those who did or did not meet the vitamin D estimated average requirement (EAR) intake (10 μg/d) and with serum 25-hydroxyvitamin D (25(OH)D) considered at risk for inadequacy or deficiency (<50 nmol/L) or sufficient (≥50 nmol/L)...
June 16, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28629414/fibrinogen-deficiency-in-a-dog-a-case-report
#7
Franck Jolivet, Armelle Diquélou, Catherine Trumel, Simon Privat, Olivier Dossin
BACKGROUND: Among coagulation disorders, primary fibrinogen deficiency is very rare in dogs. It is divided into hypofibrinogenemia, afibrinogenemia and dysfibrinogenemia. Afibrinogenemia has been described in three dogs. There are, however, no published case reports of primary hypofibrinogenemia in dogs. CASE PRESENTATION: A 1.5 year-old male German Pointer dog was evaluated for a locked-jaw syndrome associated with eye protrusion which appeared after a minor head trauma...
June 19, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28628394/nutritional-routine-of-tae-kwon-do-athletes-prior-to-competition-what-is-the-impact-of-weight-control-practices
#8
Sousana K Papadopoulou, Vasiliki A Dalatsi, Spyridon K Methenitis, Konstantinos G Feidantsis, Ioannis G Pagkalos, Maria Hassapidou
OBJECTIVE: The purpose of the present study was to investigate and assess the common dietary and weight management strategies of Tae Kwon Do (TKD) athletes prior to national competitions, as well as to examine the relationships between these strategies and body weight reduction and sensation of physical condition. METHODS: Sixty (n = 60) TKD athletes, 23 women (19.4 ± 2.9 years) and 37 men (20.4 ± 3.6 years), with at least 12.1 ± 3.1 years of experience, participated in the present study...
June 19, 2017: Journal of the American College of Nutrition
https://www.readbyqxmd.com/read/28628214/unconventional-role-of-voltage-gated-proton-channels-vsop-hv1-in-regulation-of-microglial-ros-production
#9
Takafumi Kawai, Yoshifumi Okochi, Tomohiko Ozaki, Yoshio Imura, Schuichi Koizumi, Maya Yamazaki, Manabu Abe, Kenji Sakimura, Toshihide Yamashita, Yasushi Okamura
It has been established that voltage-gated proton channels (VSOP/Hv1), encoded by Hvcn1, support reactive oxygen species (ROS) production in phagocytic activities of neutrophils (El Chemaly et al. 2010) and antibody production in B lymphocytes (Capasso et al. 2010). VSOP/Hv1 is a potential therapeutic target for brain ischemia, since Hvcn1 deficiency reduces microglial ROS production and protects brain from neuronal damage (Wu et al. 2012). In the present study, we report that VSOP/Hv1 has paradoxical suppressive role in ROS production in microglia...
June 19, 2017: Journal of Neurochemistry
https://www.readbyqxmd.com/read/28627405/the-effects-of-dietary-leucine-on-the-growth-performances-body-composition-metabolic-abilities-and-innate-immune-responses-in-black-carp-mylopharyngodon-piceus
#10
Chenglong Wu, Lian Chen, Zhibin Lu, Jun'e Gao, Yudan Chu, Liang Li, Ming Wang, Geying Zhang, Miaotong Zhang, Jinyun Ye
The present study was focused on the growth, body composition, metabolic abilities and innate immune responses in juvenile black carp Mylopharyngodon piceus fed with six levels of dietary leucine (7.3, 12.4, 16.2, 21.9, 28.3 and 34.5 g kg(-1)) for 9 weeks. Results showed that the highest weight gain (WG) and the lowest feed conversion ratio (FCR) was obtained at 23.5 and 23.9 g kg(-1) dietary leucine using second-order polynomial model, respectively. Adequate dietary leucine content (21.9 and 28.3 g kg(-1)) could significantly up-regulate the expression levels of neuropeptide Y (NPY) and ghrelin (GRL) in the brain of black carp juveniles...
June 13, 2017: Fish & Shellfish Immunology
https://www.readbyqxmd.com/read/28626540/acute-crises-and-complications-of-sickle-cell-anemia-among-patients-attending-a-pediatric-tertiary-unit-in-kinshasa-democratic-republic-of-congo
#11
Michel Ntetani Aloni, Bertin Tshimanga Kadima, Pépé Mfutu Ekulu, Aléine Nzazi Budiongo, René Makuala Ngiyulu, Jean Lambert Gini-Ehungu
In the Democratic Republic of Congo, the incidence of sickle cell anemia (SCA) is estimated to affect 30,000 to 40,000 neonates per year. However, there is paucity of data on acute clinical manifestations in sickle cell children. In these circumstances, it is difficult to develop a health care policy for an adequate management of sickle cell patients. This was a seven years' retrospective study of children admitted with acute sickle cell crisis in the Department of Pediatrics in University Hospital of Kinshasa, Kinshasa, the Democratic Republic of Congo...
June 1, 2017: Hematology Reports
https://www.readbyqxmd.com/read/28625739/changes-in-the-fine-root-proteome-of-fagus-sylvatica-l-trees-associated-with-p-deficiency-and-amelioration-of-p-deficiency
#12
Christoph-Martin Geilfus, Sebastien Christian Carpentier, Aljoša Zavišić, Andrea Polle
Phosphorus is often the least available macronutrient in soil. Lack in phosphorus has detrimental effect on growth and biomass production of European Fagus sylvatica L., a major trees species in temperate forests. In contrast to leaf tissues, few studies have examined changes in the root system and no study has ever investigated the proteomic changes affected in beech roots by a lack in available phosphate (P). Here, we studied roots of young Fagus sylvatica L. trees in their native soils from two forests sites with contrasting availability of P: one P rich and P poor soil...
June 15, 2017: Journal of Proteomics
https://www.readbyqxmd.com/read/28625041/energy-regulation-in-newly-diagnosed-tb-with-chronic-energy-deficiency-free-fatty-acids-and-rbp4
#13
Nurpudji A Taslim, Devintha Virani, Ni Ketut Sumartini, Karmila, Agussalim Bukhari, Aminuddin, Suryani As'ad, Raden Satriono, Haerani Rasyid, Irawaty Djaharuddin
BACKGROUND AND OBJECTIVES: Energy metabolism may be dysfunctionally integral between host and infective agent in active tuberculosis, mediated by adipocytokines and free fatty acids (FFA) as the products of triglyceride lipolysis in fat, blood or other tissues. Retinol Binding Protein 4 (RBP4) and asymmetric dimethylarginine (ADMA) are candidate adipocytokines. The possibility of a deleterious metabolic nexus in chronic energy deficiency (CED) (BMI <18.5 kg/m2) is explored. METHODS AND DESIGN: Newly diagnosed patients with tuberculosis (n=63) were selected using consecutive random sampling at a Centre for the Care and Treatment of Lung Diseases in Makassar, Indonesia...
June 2017: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28624934/low-serum-diamine-oxidase-dao-activity-levels-in-patients-with-migraine
#14
Joan Izquierdo-Casas, Oriol Comas-Basté, M Luz Latorre-Moratalla, Marian Lorente-Gascón, Adriana Duelo, M Carmen Vidal-Carou, Luis Soler-Singla
Histamine intolerance is a disorder in the homeostasis of histamine due to a reduced intestinal degradation of this amine, mainly caused by a deficiency in the enzyme diamine oxidase (DAO). Among the several multi-faced symptoms associated with histamine intolerance, headache is one of the most recognized and disabling consequences. The aim of this study was to determine the prevalence of DAO deficiency in patients with a confirmed migraine diagnosis according to the current International Headache Society (IHS) and in non-migraine subjects...
June 17, 2017: Journal of Physiology and Biochemistry
https://www.readbyqxmd.com/read/28624132/schizogony-and-gametogony-of-oocyst-deficient-t-263-strain-of-toxoplasma-gondii
#15
J P Dubey
Oocysts are important stage for the spread of Toxoplasma gondii because they are environmentally resistant. Among all hosts of T. gondii, only felids can excrete oocysts. Cats that have excreted T. gondii oocysts after primary infection develop immunity to re-excretion of oocysts, and this immunity appears to be long-lasting. It would be desirable to have a non-infectious vaccine for the prevention of T. gondii infection in cats and to understand mechanism of immunity to excretion of oocysts. An initial step will be to indentify stage/stages of the parasite for induction of immunity...
May 27, 2017: Veterinary Parasitology
https://www.readbyqxmd.com/read/28623639/anemia-after-continuous-flow-left-ventricular-assist-device-implantation-characteristics-and-implications
#16
Javier Amione-Guerra, Ana S Cruz-Solbes, Arvind Bhimaraj, Barry H Trachtenberg, Sai R Pingali, Jerry D Estep, Myung H Park, Ashrith Guha
BACKGROUND: Anemia is common in patients with heart failure and is associated with adverse outcomes. Management of anemia in CF-LVAD patients is not well studied. Our purpose is to characterize and identify the etiology of anemia in CF-LVAD patients. Secondary objectives are to describe the effect of CF-LVAD on pre-existing anemia and assess its impact after CF-LVAD support. METHODS: Cross-sectional study from January to July 2015 of ambulatory patients supported with a CF-LVAD for at least 6-months that presented with hemoglobin <12 g/dL and no recent gastrointestinal bleeding...
June 14, 2017: International Journal of Artificial Organs
https://www.readbyqxmd.com/read/28623422/effects-of-omega-3-on-matrix-metalloproteinase-9-myoblast-transplantation-and-satellite-cell-activation-in-dystrophin-deficient-muscle-fibers
#17
Samara Camaçari de Carvalho, Sajedah M Hindi, Ashok Kumar, Maria Julia Marques
In Duchenne muscular dystrophy (DMD), lack of dystrophin leads to progressive muscle degeneration, with DMD patients suffering from cardiorespiratory failure. Cell therapy is an alternative to life-long corticoid therapy. Satellite cells, the stem cells of skeletal muscles, do not completely compensate for the muscle damage in dystrophic muscles. Elevated levels of proinflammatory and profibrotic factors, such as metalloproteinase 9 (MMP-9), impair muscle regeneration, leading to extensive fibrosis and poor results with myoblast transplantation therapies...
June 17, 2017: Cell and Tissue Research
https://www.readbyqxmd.com/read/28623080/increased-constitutive-nitric-oxide-production-by-whole-body-periodic-acceleration-ameliorates-alterations-in-cardiomyocytes-associated-with-utrophin-dystrophin-deficiency
#18
Jose R Lopez, Juan Kolster, Rui Zhang, Jose Adams
Duchenne Muscular Dystrophy (DMD) cardiomyopathy is a progressive lethal disease caused by the lack of the dystrophin protein in the heart. The most widely used animal model of DMD is the dystrophin-deficient mdx mouse; however, these mice exhibit a mild dystrophic phenotype with heart failure only late in life. In contrast, mice deficient for both dystrophin and utrophin (mdx/utrn(-/-), or dKO) can be used to model severe DMD cardiomyopathy where pathophysiological indicators of heart failure are detectable by 8-10weeks of age...
June 13, 2017: Journal of Molecular and Cellular Cardiology
https://www.readbyqxmd.com/read/28622742/intravenous-ferumoxytol-in-pediatric-patients-with-iron-deficiency-anemia
#19
Nabil Hassan, Brian Boville, Diann Reischmann, Akunne Ndika, David Sterken, Karen Kovey
BACKGROUND: Iron deficiency anemia (IDA) is common in children. Limited data exist on the efficacy and safety of ferumoxytol in children. OBJECTIVE: To assess the efficacy of 10 mg/kg dose given over 15-60 minutes in correcting IDA and report any adverse drug reactions (ADRs). METHODS: We conducted a retrospective review of all patients who received ferumoxytol infusions for the management of IDA by the Pediatric Blood Management Program between October 2010 and March 2015...
July 2017: Annals of Pharmacotherapy
https://www.readbyqxmd.com/read/28622724/porphyrin-arch-tapes-synthesis-contorted-structures-and-full-conjugation
#20
Norihito Fukui, Taeyeon Kim, Dongho Kim, Atsuhiro Osuka
Porphyrin tapes possessing meso-meso β-β β-β triple direct linkages have been targets of extensive studies because of their fully conjugated characteristic π-electronic networks. In this paper, we report porphyrin arch-tapes that bear additional carbonyl group(s) or methylene group(s) inserted between one of the β-β linkage(s) of the porphyrin tapes. The carbonyl-inserted porphyrin arch-tapes were efficiently synthesized by double fusion reactions of β-to-β carbonyl-bridged porphyrin oligomers with DDQ and Sc(OTf)3, and were converted to the methylene-bridged porphyrin arch-tapes via Luche reduction with NaBH4 and CeCl3 followed by ionic hydrogenation with HBF4·OEt2 and BH3·NEt3...
June 16, 2017: Journal of the American Chemical Society
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