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https://www.readbyqxmd.com/read/29335865/beneficial-effect-of-berberis-amurensis-rupr-on-penile-erection
#1
Rui Tan, Yun Jung Lee, Kyung Woo Cho, Dae Gill Kang, Ho Sub Lee
OBJECTIVE: To investigate whether the methanol extract of Berberis amurensis Rupr. (BAR) augments penile erection using in vitro and in vivo experiments. METHODS: The ex vivo study used corpus cavernosum strips prepared from adult male New Zealand White rabbits. In in vivo studies for intracavernous pressure (ICP), blood pressure, mean arterial pressure (MAP), and increase of peak ICP were continuously monitored during electrical stimulation of Sprague-Dawley rats...
January 15, 2018: Chinese Journal of Integrative Medicine
https://www.readbyqxmd.com/read/29327639/levels-of-uric-acid-in-erectile-dysfunction-of-different-aetiology
#2
Alessandra Barassi, Massimiliano Marco Corsi Romanelli, Raffaele Pezzilli, Elena Dozio, Clara Anna Linda Damele, Liborio Vaccalluzzo, Marco Di Dario, Giancarlo Goi, Nadia Papini, Luca Massaccesi, Giovanni Maria Colpi, Gian Vico Melzi d'Eril
Erectile dysfunction is a common disease characterized by endothelial dysfunction. The aetiology of ED is often multifactorial but evidence is being accumulated in favor of the proper function of the vascular endothelium that is essential to achieving and maintaining penile erection. Uric acid itself causes endothelial dysfunction via decreased nitric oxide production. This study aims to evaluate the serum uric acid (SUA) levels in 180 ED patients, diagnosed with the International Index of Erectile Function-5 (IIEF-5) and 30 non-ED control...
January 12, 2018: Aging Male: the Official Journal of the International Society for the Study of the Aging Male
https://www.readbyqxmd.com/read/29323205/unsupervised-learning-and-pattern-recognition-of-biological-data-structures-with-density-functional-theory-and-machine-learning
#3
Chien-Chang Chen, Hung-Hui Juan, Meng-Yuan Tsai, Henry Horng-Shing Lu
By introducing the methods of machine learning into the density functional theory, we made a detour for the construction of the most probable density function, which can be estimated by learning relevant features from the system of interest. Using the properties of universal functional, the vital core of density functional theory, the most probable cluster numbers and the corresponding cluster boundaries in a studying system can be simultaneously and automatically determined and the plausibility is erected on the Hohenberg-Kohn theorems...
January 11, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29317073/micro-calibration-of-space-and-motion-by-photoreceptors-synchronized-in-parallel-with-cortical-oscillations-a-unified-theory-of-visual-perception
#4
Ravinder Jerath, Shannon M Cearley, Vernon A Barnes, Mike Jensen
A fundamental function of the visual system is detecting motion, yet visual perception is poorly understood. Current research has determined that the retina and ganglion cells elicit responses for motion detection; however, the underlying mechanism for this is incompletely understood. Previously we proposed that retinogeniculo-cortical oscillations and photoreceptors work in parallel to process vision. Here we propose that motion could also be processed within the retina, and not in the brain as current theory suggests...
January 2018: Medical Hypotheses
https://www.readbyqxmd.com/read/29306609/efficacy-and-safety-of-med2005-a-topical-glyceryl-trinitrate-formulation-in-the-treatment-of-erectile-dysfunction-a-randomized-crossover-study
#5
David J Ralph, Ian Eardley, Jorg Taubel, Paul Terrill, Tim Holland
BACKGROUND: Current treatments for erectile dysfunction (ED) have some limitations. AIM: This study evaluated the efficacy and tolerability of MED2005, a 0.2% glyceryl trinitrate topical gel, formulated into an enhanced absorption topical delivery system (DermaSys), administered on demand, in the treatment of ED. METHODS: This randomized, double-blinded, placebo-controlled, phase II crossover trial involved 232 men with ED (231 treated, 230 assessed for efficacy) and their partners...
December 29, 2017: Journal of Sexual Medicine
https://www.readbyqxmd.com/read/29306397/pentaplacodinium-saltonense-gen-et-sp-nov-dinophyceae-and-its-relationship-to-the-cyst-defined-genus-operculodinium-and-yessotoxin-producing-protoceratium-reticulatum
#6
Kenneth Neil Mertens, M Consuelo Carbonell-Moore, Vera Pospelova, Martin J Head, Andrea Highfield, Declan Schroeder, Haifeng Gu, Karl B Andree, Margarita Fernandez, Aika Yamaguchi, Yoshihito Takano, Kazumi Matsuoka, Elisabeth Nézan, Gwenael Bilien, Yuri Okolodkov, Kazuhiko Koike, Mona Hoppenrath, Maya Pfaff, Grant Pitcher, Abdulrahman Al-Muftah, André Rochon, Po Teen Lim, Chui Pin Leaw, Zhen Fei Lim, Marianne Ellegaard
Strains of a dinoflagellate from the Salton Sea, previously identified as Protoceratium reticulatum and yessotoxin producing, have been reexamined morphologically and genetically and Pentaplacodinium saltonense n. gen. et sp. is erected to accommodate this species. Pentaplacodinium saltonense differs from Protoceratium reticulatum (Claparède et Lachmann 1859) Bütschli 1885 in the number of precingular plates (five vs. six), cingular displacement (two widths vs. one), and distinct cyst morphology. Incubation experiments (excystment and encystment) show that the resting cyst of Pentaplacodinium saltonense is morphologically most similar to the cyst-defined species Operculodinium israelianum (Rossignol, 1962) Wall (1967) and O...
January 2018: Harmful Algae
https://www.readbyqxmd.com/read/29297308/dep1-gene-in-wheat-species-with-normal-compactoid-and-compact-spikes
#7
Valeriya Vavilova, Irina Konopatskaia, Anastasia E Kuznetsova, Alexandr Blinov, Nikolay P Goncharov
BACKGROUND: In rice, a variant of DEP1 gene results in erect panicle architecture, well-developed vascular bundles, an increase in the number of grains per panicle and a consequent increase in the grain yield. Interestingly, DEP1 homologs are present in the other cereals including species of wheat and barley (Hordeum vulgare), even though they do not produce panicles but spikes. In barley, HvDEP1 alleles do not differ between strains of various ear types and geographic origins, while in at least three OsDEP1 variants have been described...
December 28, 2017: BMC Genetics
https://www.readbyqxmd.com/read/29295809/feasibility-and-preliminary-effectiveness-of-the-homework-intervention-strategy-ehis-program-to-enhance-male-condom-use-research-protocol
#8
Marta Glowacka, Lucy Yardley, Nicole Stone, Cynthia A Graham
BACKGROUND: Although condoms are effective in reducing the risk of sexually transmitted infections (STIs) and unintended pregnancy, they are still often not used consistently and correctly. Negative impact on sensation and pleasure, ruining the mood, causing problems with maintaining erection, and condom slippage or breakage are some of the reasons given by men explaining why they do not want to use condoms. Although many interventions promoting condom use exist, some of them delivered online are complex and time- and resource-intensive...
January 2, 2018: JMIR Research Protocols
https://www.readbyqxmd.com/read/29289534/penile-length-measurement-technique-and-applications
#9
Ethan P Davoudzadeh, Natan P Davoudzadeh, Ezra Margolin, Peter J Stahl, Doron S Stember
INTRODUCTION: Penile size has long been an important fixation in men's lives. On the one hand, a smaller penis has been associated with anxiety and apprehension; on the other hand, a larger penis has generally been related to virility and strength. These perceptions predominate during an erection, when penile size is representative of a man's masculinity. AIM: To assess adult penile length and summarize average penile length assessments from the literature; analyze how various urologic diseases and therapies affect penile length and volume; and review how surgical treatments for Peyronie's disease, penile prosthesis implantation, and radical prostatectomy can affect penile size to appropriately counsel patients seeking such therapies and set realistic goals for patients...
December 27, 2017: Sexual Medicine Reviews
https://www.readbyqxmd.com/read/29281712/posture-alteration-as-a-measure-to-accommodate-uneven-ground-in-able-bodied-gait
#10
Soran Aminiaghdam, Reinhard Blickhan, Roy Muller, Christian Rode
Though the effects of imposed trunk posture on human walking have been studied, less is known about such locomotion while accommodating changes in ground level. For twelve able participants, we analyzed kinematic parameters mainly at touchdown and toe-off in walking across a 10-cm visible drop in ground level (level step, pre-perturbation step, step-down, step-up) with three postures (regular erect, ~30° and ~50° of trunk flexion from the vertical). Two-way repeated measures ANOVAs revealed step-specific effects of posture on the kinematic behavior of gait mostly at toe-off of the pre-perturbation step and the step-down as well as at touchdown of the step-up...
2017: PloS One
https://www.readbyqxmd.com/read/29280463/cavernous-nerve-injury-by-radiation-therapy-may-potentiate-erectile-dysfunction-in-rats
#11
Javed Mahmood, Caroline Q Connors, Allen A Alexander, Radmila Pavlovic, Santanu Samanta, Sandrine Soman, Hotaka Matsui, Nikolai A Sopko, Trinity J Bivalacqua, Daniel Weinreich, Cheng-Ying Ho, John Eley, Amit Sawant, Isabel L Jackson, Zeljko Vujaskovic
PURPOSE/OBJECTIVES: Radiation-induced erectile-dysfunction (RiED) is one of the most common side effects of radiation therapy (RT) and significantly reduces the quality of life (QoL) of cancer patients. Approximately 50% of prostate cancer patients experience RiED within 3 to 5 years after completion of RT. A series of vascular, muscular, and neurogenic injuries after prostate RT lead to RiED; however, the precise role of RT-induced neurogenic injury in RiED has not been fully established...
November 1, 2017: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/29275048/changes-in-male-rat-sexual-behavior-and-brain-activity-revealed-by-functional-magnetic-resonance-imaging-in-response-to-chronic-mild-stress
#12
Guotao Chen, Baibing Yang, Jianhuai Chen, Leilei Zhu, Hesong Jiang, Wen Yu, Fengchao Zang, Yun Chen, Yutian Dai
BACKGROUND: Non-organic erectile dysfunction (noED) at functional imaging has been related to abnormal brain activity and requires animal models for further research on the associated molecular mechanisms. AIM: To develop a noED animal model based on chronic mild stress and investigate brain activity changes. METHODS: We used 6 weeks of chronic mild stress to induce depression. The sucrose consumption test was used to assess the hedonic state...
December 20, 2017: Journal of Sexual Medicine
https://www.readbyqxmd.com/read/29274598/transmissibility-and-waveform-purity-of-whole-body-vibrations-in-older-adults
#13
Freddy Man Hin Lam, Chak-Yin Tang, Timothy Chi Yui Kwok, Marco Yiu Chung Pang
BACKGROUND: This study examined the transmission power and waveform purity of vertical (synchronous) whole-body vibrations upon its propagation in the human body among older adults. METHODS: Forty community-dwelling older adults participated in the study (33 women; mean age: 60.3 (SD 5.7) years). Four vibration frequencies (25, 30, 35, 40Hz), two amplitudes (0.6 and 0.9mm), and six different postures were tested. Skin-mounted tri-axial accelerometers were placed at the medial malleolus, tibial tuberosity, greater trochanter, third lumbar vertebra, and forehead...
December 15, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/29259207/dickkopf2-rescues-erectile-function-by-enhancing-penile-neurovascular-regeneration-in-a-mouse-model-of-cavernous-nerve-injury
#14
Kalyan Ghatak, Guo Nan Yin, Min-Ji Choi, Anita Limanjaya, Nguyen Nhat Minh, Jiyeon Ock, Kang-Moon Song, Dong Hyuk Kang, Young-Guen Kwon, Ho Min Kim, Ji-Kan Ryu, Jun-Kyu Suh
Penile erection is a neurovascular event and neurologic or vascular disturbances are major causes of erectile dysfunction (ED). Radical prostatectomy for prostate cancer not only induces cavernous nerve injury (CNI) but also results in cavernous angiopathy, which is responsible for poor responsiveness to oral phosphodiesterase-5 inhibitors. Dickkopf2 (DKK2) is known as a Wnt signaling antagonist and is reported to promote mature and stable blood vessel formation. Here, we demonstrated in CNI mice that overexpression of DKK2 by administering DKK2 protein or by using DKK2-Tg mice successfully restored erectile function: this recovery was accompanied by enhanced neural regeneration through the secretion of neurotrophic factors, and restoration of cavernous endothelial cell and pericyte content...
December 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29247299/influence-of-body-odors-and-gender-on-perceived-genital-arousal
#15
Patrícia Alves-Oliveira, Joana Carvalho, Jacqueline Ferreira, Laura Alho, Pedro Nobre, Mats J Olsson, Sandra C Soares
Olfaction is often linked to mating behavior in nonhumans. Additionally, studies in mating behavior have shown that women seem to be more affected by odor cues than men. However, the relationship between odor cues and sexual response-specifically, sexual arousal-has not been studied yet. The aim of this study was to evaluate the impact of the exposure to human body odors (from individuals of the opposite gender) on perceived genital arousal, while these were presented concomitantly to sexually explicit video clips...
December 15, 2017: Archives of Sexual Behavior
https://www.readbyqxmd.com/read/29245671/-i-konothrips-polychaeta-i-sp-n-from-delaware-north-america-with-a-key-to-the-three-species-of-this-genus
#16
Arturo Goldarazena, Adam Mitchell, Thierry Hance
The genus Konothrips was erected by Bhatti (1990) for a single species, tuttlei, that was described from Arizona in the genus Chirothrips by zur Strassen (1967). The new genus was distinguished by the longitudinally orientated sculpture on the abdominal terga and sterna, the fore wing costa with only a single seta, and the ovipositor lacking teeth (Bhatti 1990). Subsequently, Nakahara and Foottit (2012) described in Konothrips a second species, colei, from Texas. However, those authors indicated that there is variation in these characters, with  colei intermediate in structure between tuttlei and members of Arorathrips...
November 1, 2017: Zootaxa
https://www.readbyqxmd.com/read/29245600/on-the-identity-of-i-photophilus-i-folkmanov%C3%A3-1928-a-new-generic-synonymy-chilopoda-geophilomorpha-geophilidae
#17
László Dányi, Ivan Hadrián Tuf
The enigmatic monotypic genus Photophilus Folkmanová, 1928 and its type species, Photophilus griseus Folkmanová, 1928, were described almost 90 years ago from the Czech Republic. The new genus was erected not only based on some morphological characters, but also on behavioural features rather peculiar among Central European geophilomorphs. Although the patria of these taxa is among the best studied regions regarding Chilopoda, and focussed effort has been made to collect further representatives of these taxa, none have been found since the original description As the type material is lost and we failed to collect new specimens from the type locality, we tried to elucidate the true identity of these genus and species by analysing the characters given in the original description in comparison to all other geophilomorphs known from Europe...
November 13, 2017: Zootaxa
https://www.readbyqxmd.com/read/29245517/a-new-species-of-i-palaeugoa-i-durante-2012-from-sierra-leone-lepidoptera-erebidae-arctiinae
#18
Anton V Volynkin
The Asura / Miltochrista generic complex (family Erebidae, subfamily Arctiinae, tribe Lithosiini) is one of the largest and taxonomically most difficult Lithosiini groups widely distributed in Afrotropical, Palaearctic, Oriental, and Indo-Australian regions. In Africa, the generic complex is represented by the genera Tumicla Wallengren, 1863 (= Asuroides Durante, 2008, syn. rev.), Afrasura Durante, 2009, Parafrasura Durante, 2012 and Palaeugoa Durante, 2012. The genus Palaeugoa was erected as monobasic for Xanthetis spurrelli Hampson, 1914 described from Ghana (Durante 2012)...
November 23, 2017: Zootaxa
https://www.readbyqxmd.com/read/29245479/revision-of-the-megaperidae-manter-1934-n-comb-syn-apocreadiidae-skrjabin-1942-including-a-reorganization-of-the-schistorchiinae-yamaguti-1942
#19
Charles K Blend, Yasser F M Karar, Norman O Dronen
Modified and/or new keys to the four subfamilies now recognized within the Megaperidae Manter, 1934 n. comb. (Syn. Apocreadiidae Skrjabin, 1942) as well as the genera within each subfamily are presented. Two new genera, Paraschistorchis n. gen. and Plesioschistorchis n. gen., both within the Schistorchiinae Yamaguti, 1942, are erected and keys are provided to the species considered in both new genera-distinguished by possessing caeca that end either in separate ani or blindly. Plesioschistorchis callyodontis (Yamaguti, 1942) n...
November 28, 2017: Zootaxa
https://www.readbyqxmd.com/read/29245413/a-new-i-setacheres-i-copepoda-siphonostomatoida-asterocheridae-associated-with-i-ircinia-i-felix-duchassaing-amp-michelotti-porifera-from-brazil
#20
Camila C Borges, Elizabeth G Neves, Rodrigo Johnsson
Recent surveys of the copepod fauna associated with the sponge Ircinia felix (Porifera, Dictyoceratida) in Brazil resulted in the discovery of a new siphonostomatoid species belonging to a recently erected genus of Asterocheridae. Setacheres portobarrensis sp. nov. possesses a 21-segmented antennule, with 3 free distal segments, after the aesthetasc. The third exopodal segment of leg 3 shows a distal seta instead of a spine as in some other congeners. The new species shows several unique features on the third endopodal segment of the antenna, the mandibular stylet, the inner lobe of the maxillule, and setules and spinules located in specific regions of legs 1 to 4...
December 8, 2017: Zootaxa
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