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https://www.readbyqxmd.com/read/28219672/changes-in-cardiovascular-function-based-on-adrenalin-and-norepinephrine-metabolism-in-ovariectomized-rats
#1
Hai Jiang, Wenpei Bai, Wenjuan Wang, Jing Zhang, Ke Wang, Yao Liu, Shuya Liu, Jing Jia, Lihua Qin
Menopause is a cardiovascular risk factor in women, and cardiovascular changes during perimenopause can increase the risk. We observed the influence of plasma adrenalin and norepinephrine and their metabolites on the cardiovascular system and the rectification effect of estrogen in ovariectomized rats. Fifty-four adult female Sprague-Dawley rats were randomly divided into sham (Sham), ovariectomized (OVX), or ovariectomized+estrogen treatment groups (OVX+E), with 18 rats in each. The Sham and OVX groups were given normal saline and the OVX+E group was given estradiol valerate beginning 2weeks after ovariectomy and continuing for 4weeks...
February 17, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28203198/surgical-management-of-a-patient-with-anterior-megalophthalmos-lens-subluxation-and-a-high-risk-of-retinal-detachment
#2
María Carmen Guixeres Esteve, Augusto Octavio Pardo Saiz, Lucía Martínez-Costa, Samuel González-Ocampo Dorta, Pedro Sanz Solana
The early development of lens opacities and lens subluxation are the most common causes of vision loss in patients with anterior megalophthalmos (AM). Cataract surgery in such patients is challenging, however, because of anatomical abnormalities. Intraocular lens dislocation is the most common postoperative complication. Patients with AM also seem to be affected by a type of vitreoretinopathy that predisposes them to retinal detachment. We here present the case of a 36-year-old man with bilateral AM misdiagnosed as simple megalocornea...
January 2017: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/28197789/surgical-outcome-for-severe-cubital-tunnel-syndrome-in-patients-aged-70%C3%A2-years-a-mean-follow-up-of-4-5%C3%A2-years
#3
Jinsong Tong, Bin Xu, Zhen Dong, Chenggang Zhang, Yudong Gu
BACKGROUND: Surgical outcomes for cubital tunnel syndrome have been reported to be satisfactory, but could be compromised by advanced age and severe nerve compression. We aim to evaluate the prognosis of severe cubital tunnel syndrome in patients aged >70 years. METHODS: This retrospective study included 25 patients (26 extremities, all McGowan grade III, age >70 years); 21 underwent subcutaneous transposition and 5 in situ decompression. Postoperative follow-up lasted >2 years...
February 14, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28190486/randomised-controlled-trial-to-evaluate-the-effect-of-foot-trimming-before-and-after-first-calving-on-subsequent-lameness-episodes-and-productivity-in-dairy-heifers
#4
S A Mahendran, J N Huxley, Y-M Chang, M Burnell, D C Barrett, H R Whay, T Blackmore, C S Mason, N J Bell
The objective of this study was to assess both independent and combined effects of routine foot trimming of heifers at 3 weeks pre-calving and 100 days post calving on the first lactation lameness and lactation productivity. A total of 419 pre-calving dairy heifers were recruited from one heifer rearing operation over a 10-month period. Heifers were randomly allocated into one of four foot trimming regimens; pre-calving foot trim and post-calving lameness score (Group TL), pre-calving lameness score and post-calving foot trim (Group LT), pre-calving foot trim and post-calving foot trim (Group TT), and pre-calving lameness score and post-calving lameness score (Group LL, control group)...
February 2017: Veterinary Journal
https://www.readbyqxmd.com/read/28185180/primary-iris-claw-iol-retrofixation-with-intravitreal-triamcinolone-acetonide-in-cases-of-inadequate-capsular-support
#5
Aditya Kelkar, Rachana Shah, Viraj Vasavda, Jai Kelkar, Shreekant Kelkar
PURPOSE: To assess the outcomes and analyze complication rates following primary iris claw IOL retrofixation with intravitreal triamcinolone acetonide. METHODS: This is a retrospective interventional case series. Patients with poor capsular support-diagnosed preoperatively or owing to intraoperative complications-were treated with iris claw IOL retrofixation with intravitreal triamcinolone acetonide. The data were retrospectively analyzed. RESULTS: 104 eyes of 102 patients with poor capsular support who underwent the procedure between 2010 and 2013 were analyzed...
February 9, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28183127/a-redescription-of-the-long-tailed-nesokia-i-nesokia-i-i-bunnii-i-and-designation-of-a-neotype-rodentia-muridae
#6
Boris Kryštufek, Omar F Al-Sheikhly, Rainer Hutterer
Long-tailed Nesokia, Nesokia bunnii, is a large rat restricted to the Mesopotamian marshes in Basra Province in southern Iraq. The species is known from five museum vouchers collected between March 1974 and January 1977. The type and the paratype, deposited in the Natural History Research Centre and Museum, University of Baghdad, Iraq, were destroyed during War on Iraq in 2003. By studying morphological details on three museum specimens in the Senckenberg Institution, Frankfurt a. M., Germany, we show that N...
January 4, 2017: Zootaxa
https://www.readbyqxmd.com/read/28178584/comparative-study-of-the-claws-of-pediculus-humanus-capitis-between-archaeological-and-modern-specimens
#7
Hipólito Núñez, Bernardo Arriaza, Vivien Standen, Natalia Aravena
Metric data of the claws of archaeological specimens of Pediculus humanus capitis (dating between 1500 B.C. and A.D. 1500) and modern lice specimens coming from school children were analyzed and compared. Both sets of samples come from Arica in northern Chile. The overall sample is comprised of 14 archaeological specimens (6 females and 8 males) of Pediculus humanus capitis and 22 modern specimens (13 females and 9 males). All specimens were studied with scanning electron microscopy (SEM), uncoated, using variable pressure mode...
January 27, 2017: Micron: the International Research and Review Journal for Microscopy
https://www.readbyqxmd.com/read/28168720/external-morphogenesis-of-the-tardigrade-hypsibius-dujardini-as-revealed-by-scanning-electron-microscopy
#8
Vladimir Gross, Irene Minich, Georg Mayer
Tardigrada, commonly called water bears, is a taxon of microscopic panarthropods with five-segmented bodies and four pairs of walking legs. Although tardigrades have been known to science for several centuries, questions remain regarding many aspects of their biology, such as embryogenesis. Herein, we used scanning electron microscopy to document the external changes that occur during embryonic development in the tardigrade Hypsibius dujardini (Eutardigrada, Parachela, Hypsibiidae). Our results show an accelerated development of external features, with approximately 30 hrs separating the point at which external structures first become recognizable and a fully formed embryo...
February 6, 2017: Journal of Morphology
https://www.readbyqxmd.com/read/28168123/a-new-glimpse-on-mesozoic-zooplankton-150-million-year-old-lobster-larvae
#9
Joachim T Haug, Carolin Haug
Larvae of malacostracan crustaceans represent a large fraction of modern day zooplankton. Plankton is not only a major part of the modern marine ecosystem, but must have played an important role in the ecosystems of the past as well. Unfortunately, our knowledge about plankton composition of the past is still quite limited. As an important part of today's zooplankton, malacostracan larvae are still a rarity in the fossil record; many types of malacostracan larvae dominating the modern plankton have so far not been found as fossils...
2017: PeerJ
https://www.readbyqxmd.com/read/28168117/boxer-crabs-induce-asexual-reproduction-of-their-associated-sea-anemones-by-splitting-and-intraspecific-theft
#10
Yisrael Schnytzer, Yaniv Giman, Ilan Karplus, Yair Achituv
Crabs of the genus Lybia have the remarkable habit of holding a sea anemone in each of their claws. This partnership appears to be obligate, at least on the part of the crab. The present study focuses on Lybia leptochelis from the Red Sea holding anemones of the genus Alicia (family Aliciidae). These anemones have not been found free living, only in association with L. leptochelis. In an attempt to understand how the crabs acquire them, we conducted a series of behavioral experiments and molecular analyses...
2017: PeerJ
https://www.readbyqxmd.com/read/28167054/glaucoma-and-intraocular-pressure-in-patients-operated-for-late-in-the-bag-intraocular-lens-dislocation-a-randomized-clinical-trial
#11
Olav Kristianslund, Marianne Råen, Atle Einar Østern, Liv Drolsum
PURPOSE: To compare intraocular pressure (IOP) and IOP-lowering treatment requirements in patients with late in-the-bag intraocular lens (IOL) dislocation operated with 2 different methods, and to assess whether an IOP decrease after surgery can be expected. DESIGN: Prospective, randomized, parallel-group clinical trial. METHODS: In our university clinic, 104 patients (eyes) were randomly assigned to IOL repositioning by scleral suturing (n = 54) or IOL exchange with retropupillar iris-claw lens (n = 50)...
February 3, 2017: American Journal of Ophthalmology
https://www.readbyqxmd.com/read/28165396/proanthocyanidin-characterization-and-bioactivity-of-extracts-from-different-parts-of-uncaria-tomentosa-l-cat-s-claw
#12
Mirtha Navarro-Hoyos, Rosa Lebrón-Aguilar, Jesús E Quintanilla-López, Carolina Cueva, David Hevia, Silvia Quesada, Gabriela Azofeifa, M Victoria Moreno-Arribas, María Monagas, Begoña Bartolomé
Apart from alkaloids, bioactive properties of Uncaria tomentosa L. have been attributed to its phenolic constituents. Although there are some reports concerning low-molecular-weight polyphenols in U. tomentosa, its polymeric phenolic composition has been scarcely studied. In this study, phenolic-rich extracts from leaves, stems, bark and wood (n = 14) of Uncaria tomentosa plants from several regions of Costa Rica were obtained and analysed in respect to their proanthocyanidin profile determined by a quadrupole-time-of-flight analyser (ESI-QTOF MS)...
February 4, 2017: Antioxidants (Basel, Switzerland)
https://www.readbyqxmd.com/read/28163884/touchdown-to-take-off-at-the-interface-of-flight-and-surface-locomotion
#13
REVIEW
William R T Roderick, Mark R Cutkosky, David Lentink
Small aerial robots are limited to short mission times because aerodynamic and energy conversion efficiency diminish with scale. One way to extend mission times is to perch, as biological flyers do. Beyond perching, small robot flyers benefit from manoeuvring on surfaces for a diverse set of tasks, including exploration, inspection and collection of samples. These opportunities have prompted an interest in bimodal aerial and surface locomotion on both engineered and natural surfaces. To accomplish such novel robot behaviours, recent efforts have included advancing our understanding of the aerodynamics of surface approach and take-off, the contact dynamics of perching and attachment and making surface locomotion more efficient and robust...
February 6, 2017: Interface Focus
https://www.readbyqxmd.com/read/28162940/surface-protection-in-bio-shields-via-a-functional-soft-skin-layer-lessons-from-the-turtle-shell
#14
Yaniv Shelef, Benny Bar-On
The turtle shell is a functional bio-shielding element, which has evolved naturally to provide protection against predator attacks that involve biting and clawing. The near-surface architecture of the turtle shell includes a soft bi-layer skin coating - rather than a hard exterior - which functions as a first line of defense against surface damage. This architecture represents a novel type of bio-shielding configuration, namely, an inverse structural-mechanical design, rather than the hard-coated bio-shielding elements identified so far...
January 12, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/28159046/modified-double-plantar-plate-tenodesis
#15
T H Lui, L L LiYeung
BACKGROUND: Metatarsophalangeal joint instability of the lesser toe can cause acquired toe deformity. Plantar plate deficiency is the major pathology. Plantar plate repair can stabilize the joint but may result in iatrogenic transverse plane toe deformity in correction of claw toe deformity. Limited toe extension can be resulted after correction of crossover toe deformity by plantar plate tenodesis and extensor digitorum brevis transfer. A modification of the technique is proposed. MATERIALS AND METHODS: The clinical outcomes of 10 patients with the modified procedure performed were assessed...
March 2017: Foot and Ankle Surgery: Official Journal of the European Society of Foot and Ankle Surgeons
https://www.readbyqxmd.com/read/28151035/long-term-efficacy-and-safety-of-a-nitinol-closure-clip-system-for-anal-fistula-treatment
#16
Sebastian Dango, Fillimon Antonakis, Dirk Schrader, Arkadiy Radzikhovskiy, Michael B Ghadimi, Rudolf Hesterberg
INTRODUCTION: Treatment failure of anal fistula results in high re-occurrence rate. MATERIAL AND METHODS: Efficacy and safety of a nitinol closure clip system (bear-claw clip) were evaluated for anal fistulae treatment in a 36-month long-term follow-up study. RESULTS: Twenty-two patients were included. No patient had been treated with a bear-claw clip system before. All patients were fully continent before treatment. Follow-up time was 36 months (range 19-48 months)...
February 2, 2017: Minimally Invasive Therapy & Allied Technologies: MITAT
https://www.readbyqxmd.com/read/28144184/first-record-of-the-genus-lethades-davis-1897-from-the-oriental-region-with-description-of-a-new-species-hymenoptera-ichneumonidae-ctenopelmatinae
#17
Alexey Reshchikov, Zai-Fu Xu, Hong Pang
A new species of the genus Lethades Davis, 1897 (Ctenopelmatinae: Pionini), Lethades orientalis Reshchikov & Xu, sp. n., collected in Heishiding Nature Reserve in Guangdong Province, China, is described. This is new record of the genus from China and for the Oriental region also. The species can be distinguished from all other species of the genus by its black metasoma, the presence of an areolet on the fore wing, distinctly pectinate claws with teeth of the hind claw as high as the claw itself, and a complete longitudinal propodeal carina...
2017: ZooKeys
https://www.readbyqxmd.com/read/28137244/cambrian-suspension-feeding-lobopodians-and-the-early-radiation-of-panarthropods
#18
Jean-Bernard Caron, Cédric Aria
BACKGROUND: Arthropoda, Tardigrada and Onychophora evolved from lobopodians, a paraphyletic group of disparate Palaeozoic vermiform animals with soft legs. Although the morphological diversity that this group encompasses likely illustrates the importance of niche diversification in the early radiation of panarthropods, the ecology of lobopodians remains poorly characterized. RESULTS: Here we describe a new luolishaniid taxon from the middle Cambrian Burgess Shale (Walcott Quarry) in British Columbia, Canada, whose specialized morphology epitomizes the suspension-feeding ecology of this clade, and is convergent with some modern marine animals, such as caprellid crustaceans...
January 31, 2017: BMC Evolutionary Biology
https://www.readbyqxmd.com/read/28130670/two-new-species-of-poecilostomatoid-copepods-symbiotic-on-the-venomous-echinoid-toxopneustes-pileolus-lamarck-echinodermata-from-vietnam
#19
Balu Alagar Venmathi Maran, Il-Hoi Kim, Olga A Bratova, Viatcheslav N Ivanenko
Two new coexisting species of crustacean copepods (Poecilostomatoida) belonging to the echinoid-specific genera Mecomerinx Humes, 1977 (Pseudanthessiidae) and Clavisodalis Humes, 1970 (Taeniacanthidae) found associated with the venomous flower urchin Toxopneustes pileolus (Lamarck) (Echinodermata: Echinoidea: Toxopneustidae) in the South China Sea (Vietnam) are described. The diagnostic features of Mecomerinx ohtsukai n. sp. are: (i) three setae and one aesthetasc on the first segment of antennules; (ii) relatively long caudal ramus; (iii) elongated terminal segment of the antenna; and (iv) two claws on the terminal segment of antenna slightly unequal in length...
February 2017: Systematic Parasitology
https://www.readbyqxmd.com/read/28128366/phylogeography-of-the-smooth-coated-otter-lutrogale-perspicillata-distinct-evolutionary-lineages-and-hybridization-with-the-asian-small-clawed-otter-aonyx-cinereus
#20
Beatrice Moretti, Omar F Al-Sheikhly, Monica Guerrini, Meryl Theng, Brij K Gupta, Mukhtar K Haba, Waseem A Khan, Aleem A Khan, Filippo Barbanera
We investigated the phylogeography of the smooth-coated otter (Lutrogale perspicillata) to determine its spatial genetic structure for aiding an adaptive conservation management of the species. Fifty-eight modern and 11 archival (dated 1882-1970) otters sampled from Iraq to Malaysian Borneo were genotyped (mtDNA Cytochrome-b, 10 microsatellite DNA loci). Moreover, 16 Aonyx cinereus (Asian small-clawed otter) and seven Lutra lutra (Eurasian otter) were sequenced to increase information available for phylogenetic reconstructions...
January 27, 2017: Scientific Reports
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