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Paolo M Cunha, Crisieli M Tomeleri, Matheus A do Nascimento, João Pedro Nunes, Melissa Antunes, Hellen C G Nabuco, Ygor Quadros, Edilaine F Cavalcante, Jerry L Mayhew, Luís B Sardinha, Edilson S Cyrino
The main purpose of this study was to compare the effects of resistance training (RT) performed with different training volumes on phase angle (PhA), body water components, and muscle quality (MQ) in untrained older adult women. A second purpose was to assess the relationship between PhA and MQ. Sixty-two older adult women (68.6 ± 5.0 years, 65.2 ± 13.3 kg, 156.1 ± 6.2 cm) were randomly assigned into one of the three groups: two training groups performed either 1 set (G1S) or 3 sets (G3S), or a control group (CG)...
May 23, 2018: Journal of Sports Sciences
Valentina Brachetta, Cristian E Schleich, Ana P Cutrera, Julieta L Merlo, Marcelo J Kittlein, Roxana R Zenuto
In pregnant females, a failed predatory event not only induces individual responses but also represents a significant change in the developmental environment of the offspring, which may lead to modifications in their phenotype that may persist at different stages of life. We evaluate whether prenatal exposure to predatory cues affects anxiety behavior, behavioral response to predator cues, stress response to immobilization, and immune response to sheep red blood cells (SRBC) and phytohemagglutinin (PHA) in juveniles of the subterranean rodent Ctenomys talarum...
May 21, 2018: Developmental Psychobiology
Carolina A Martínez-Gutiérrez, Hever Latisnere-Barragán, José Q García-Maldonado, Alejandro López-Cortés
Hypersaline microbial mats develop through seasonal and diel fluctuations, as well as under several physicochemical variables. Hence, resident microorganisms commonly employ strategies such as the synthesis of polyhydroxyalkanoates (PHAs) in order to resist changing and stressful conditions. However, the knowledge of bacterial PHA production in hypersaline microbial mats has been limited to date, particularly in regard to medium-chain length PHAs (mcl-PHAs), which have biotechnological applications due to their plastic properties...
2018: PeerJ
D M Keogan, S S C Oliveira, L S Sangenito, M H Branquinha, R D Jagoo, B Twamley, A L S Santos, D M Griffith
Reaction of benzohydroxamic acid (Bha), 2-pyridinehydroxamic acid (2-pyha), 2-amino-phenylhydroxamic acid (2-NH2-pha) and salicylhydroxamic acid (Sha) with SbCl3 in ethanol gave the corresponding novel hydroxamato Sb(iii) complexes, [Sb(Bha-1H)2Cl] 1, [SbCl2(2-pyha-1H)] 2, [Sb(2-NH2-pha-1H)(2-NH3-pha-1H)]Cl2 3 and [SbCl(Sha-1H)2] 4. In all cases the hydroxamic acids coordinate to the Sb centres in the typical bidentate hydroxamato (O,O') coordination mode, via the carbonyl oxygen and deprotonated hydroxyl group...
May 14, 2018: Dalton Transactions: An International Journal of Inorganic Chemistry
Burak Tuzun, Sevtap Caglar Yavuz, Nazmiye Sabanci, Emin Saripinar
In the present work, pharmacophore identification and biological activity prediction for 86 pyrazole pyridine carboxylic acid derivatives were made using the electron conformational genetic algorithm approach which was introduced as a 4D-QSAR analysis by us in recent years. In the light of the data obtained from quantum chemical calculations at HF/6-311 G** level, the electron conformational matrices of congruity (ECMC) were constructed by EMRE software. Comparing the matrices, electron conformational submatrix of activity (ECSA, Pha) was revealed that are common for these compounds within a minimum tolerance...
May 13, 2018: Current Computer-aided Drug Design
Yahya Guzel, Ertugrul Aslan, Burcin Turkmenoglu, E Mesut Su
In this paper, we have introduced a new atomic descriptor with Klopman index to determine the local reactive sites of the molecular systems during electrophilic, nucleophilic attacks. This index, similar to other local reactivity descriptors but more advanced, has been used as a realistic descriptor to discover new aspects of molecular structure. Nonlinear least squares (NLLS) methods to define the parameters maximizing the fit between the observed points and the computed simulation results were performed according to the Levenberg-Marquardt (LM) algorithm...
May 13, 2018: Current Computer-aided Drug Design
Vahid Reza Askari, Vafa Baradaran Rahimi, Seyed Abdolrahim Rezaee, Mohammad Hossein Boskabady
BACKGROUND: Auraptene as member of dietary coumarins, is found in citrus fruits. Former studies have demonstrated its anti-inflammatory and anti-cancer activity. PURPOSE: The mechanism of action and immune-modulatory property of this compound on human lymphocytes are greatly unknown. STUDY DESIGN/METHODS: The effect of three concentrations (10, 30 and 90 µM) of auraptene or dexamethasone (0.1 mM) were evaluated on percentage of cell proliferation and nitric oxide (NO) production as well as secretion and gene expression of cytokines, and NF-κB level in PHA-stimulated and non-stimulated lymphocytes...
April 1, 2018: Phytomedicine: International Journal of Phytotherapy and Phytopharmacology
Gianluca Accogli, Alberto Maria Crovace, Maria Mastrodonato, Giacomo Rossi, Edda G Francioso, Salvatore Desantis
The effect of a dietary probiotic blend on the carbohydrate composition of mucins secreted by the Brunner's glands in the duodenum of growing-finishing pigs was investigated by means of conventional (periodic acid-Schiff, Alcian Blue pH 2.5, high iron diamine staining) and lectin (15 lectins) histochemistry. Pigs were assigned to two dietary treatments: a control basal diet without the probiotic blend (No-Pro) and a test diet that included the probiotic blend (Pro). Duodenal tissue fragments were fixed in 4% phosphate-buffered-saline-buffered paraformaldehyde, dehydrated through a graded alcohol series, and embedded in paraffin wax...
May 3, 2018: Annals of Anatomy, Anatomischer Anzeiger: Official Organ of the Anatomische Gesellschaft
Kai-Hee Huong, K A R Elina, A A Amirul
Long carbon chain alkanediols are used in the production of poly(3-hydroxybutyrate-co-4-hydroxybutyrate) [P(3HB-co-4HB)], however these substrates possess high toxicity towards bacterial cells. This study demonstrated the effective utilisation of a long carbon chain alkanediol, namely 1,8-octanediol, to enhance the yield and production of a copolymer with a high molecular weight of over 1000 kDa, which is desirable for novel applications in medical and biopharmaceuticals. The increased PHA content (47-61 wt%) and concentration (1...
April 30, 2018: International Journal of Biological Macromolecules
Laura Foucault-Fruchard, Claire Tronel, Sylvie Bodard, Zuhal Gulhan, Julie Busson, Sylvie Chalon, Daniel Antier
Neuroinflammation is a common element involved in the pathophysiology of neurodegenerative diseases. We recently reported that repeated alpha-7 nicotinic acetylcholine receptor (α7nAChR) activations by a potent agonist such as PHA 543613 in quinolinic acid-injured rats exhibited protective effects on neurons. To further investigate the underlying mechanism, we established rat models of early-stage Huntington's disease by injection of quinolinic acid into the right striatum and then intraperitoneally injected 12 mg/kg PHA 543613 or sterile water, twice a day during 4 days...
April 2018: Neural Regeneration Research
Aaron Hanukoglu, Israel Hanukoglu
We read with interest the recent paper by Turan et al. (published online April 18, 2018) on eight patients with hypoaldosteronism resulting from biosynthetic defects of aldosterone secretion (3 cases) or aldosterone insensitivity syndromes named as pseudohypoaldosteronism type 1 (PHA) (5 cases).1 In 1991, we described for the first time that PHA type I may appear in two forms with distinct clinical, genetic, and endocrine characteristics.2 These two forms were named as the renal form, and the systemic (multi-system) form of PHA...
April 27, 2018: Clinical Endocrinology
Israa Salem Al Rowaihi, Alexis Paillier, Shahid Rasul, Ram Karan, Stefan Wolfgang Grötzinger, Kazuhiro Takanabe, Jörg Eppinger
Poly(3-hydroxybutyrate) (PHB), a biodegradable polymer, can be produced by different microorganisms. The PHB belongs to the family of polyhydroxyalkanoate (PHA) that mostly accumulates as a granule in the cytoplasm of microorganisms to store carbon and energy. In this study, we established an integrated one-pot electromicrobial setup in which carbon dioxide is reduced to formate electrochemically, followed by sequential microbial conversion into PHB, using the two model strains, Methylobacterium extorquens AM1 and Cupriavidus necator H16...
2018: PloS One
Sarah M Totten, Ravali Adusumilli, Majlinda Kullolli, Cheylene Tanimoto, James D Brooks, Parag Mallick, Sharon J Pitteri
Currently prostate-specific antigen is used for prostate cancer (PCa) screening, however it lacks the necessary specificity for differentiating PCa from other diseases of the prostate such as benign prostatic hyperplasia (BPH), presenting a clinical need to distinguish these cases at the molecular level. Protein glycosylation plays an important role in a number of cellular processes involved in neoplastic progression and is aberrant in PCa. In this study, we systematically interrogate the alterations in the circulating levels of hundreds of serum proteins and their glycoforms in PCa and BPH samples using multi-lectin affinity chromatography and quantitative mass spectrometry-based proteomics...
April 25, 2018: Scientific Reports
Bartholomew N Ondigo, Eric M Ndombi, Sarah C Nicholson, John K Oguso, Jennifer M Carter, Nupur Kittur, William Evan Secor, Diana M S Karanja, Daniel G Colley
Immunoregulation is considered a common feature of Schistosoma mansoni infections, and elevated levels of T regulatory (Treg) lymphocytes have been reported during chronic human schistosomiasis. We now report that the removal of Treg (CD4+/CD25hi /CD127low lymphocytes) from peripheral blood mononuclear cells (PBMCs) of S. mansoni -infected individuals leads to increased levels of phytohemagglutinin (PHA)-stimulated interferon gamma (IFNγ) production and decreased interleukin-10 (IL-10) responses. Exposure to schistosome antigens did not result in measurable IFNγ by either PBMC or Treg-depleted populations...
April 23, 2018: American Journal of Tropical Medicine and Hygiene
Francesco Campa, Analiza Mónica Silva, Stefania Toselli
This study aimed to present a suspension exercise training program suitable for older adults and to verify the effect of 12 weeks of training on handgrip strength (HS) and anthropometric and bioelectrical impedance parameters in older adults. Thirty older women (age 66.1±4.7 years, BMI 30.6±5.3 kg/m2 ) were randomly assigned to one of two groups: a training group (TG, n=15) or a control group (CG, n=15). The TG participated in a 12-week suspension training program, while the CG maintained their normal physical activity habits for the duration of the study...
April 23, 2018: International Journal of Sports Medicine
Camille Ducloy, Bin Su, Luzia Mayr, Jéromine Klingler, Thomas Decoville, Sylvie Schmidt, Géraldine Laumond, Nathalie Salomé, Seiamak Bahram, Christiane Moog
OBJECTIVE: In the semen, both free virus and infected cells are able to establish HIV infection during sexual intercourse. An efficient vaccine should, therefore, inhibit both infectious states. The aim of this study was to analyze the capacity of broadly neutralizing antibodies (bNAbs) to inhibit HIV transmission by the infected cells. DESIGN/METHODS: We developed an in-vitro model aiming to mimic mucosal HIV transmission via infected cells. PHA-activated CD4 T cells stained with PKH26 from donor A were infected and co-cultured with CD4 T cells and dendritic cells from donor B in the presence of bNAbs...
April 19, 2018: AIDS
Kiyoshi Nomura, Akira Yunoki, Masayuki Hara, Yuko Morito, Akira Fujishima
A flexible γ detector using a liquid scintillation light guide (LSLG) was developed. The analyzed pulse height (PHA) spectrum depended on the diameter, length and scintillator concentration of the LSLG, and the distance of a γ ray irradiation point from the head of photomultiplier tube (PMT). From the analysis of PHA spectrum, it was found that the count ratio of two divided channel regions linearly decreases as the distance from the PMT head increases. It was further found that the radiation dose rate can be estimated by setting the flexible LSLG tube to a circular shape since the count rate is proportional to the dose rate measured by a conventional NaI (Tl) scintillation detector...
April 10, 2018: Applied Radiation and Isotopes
Jinhui Wang, Hua He, Xin Xu, Xiao Wang, Yongbing Chen, Lichen Yin
Effective anti-cancer therapy is hurdled by the complicated extracellular and intracellular barriers, and thus a smart gene vector that can enable programmable gene delivery is highly demanded. Photo-manipulation of gene delivery processes features spatial and temporal precision, while majority of current strategies utilizes short-wavelength UV/visible light with poor tissue penetration or high-power-density near-infrared (NIR) light that would cause undesired heat damage. Herein, an ROS-degradable polycation was designed and co-delivered with a photosensitizer (PS), thus realizing photo-programmable gene delivery using far-red light (661 nm) at low optical power density (down to 5 mW cm-2 )...
April 12, 2018: Biomaterials
Suren Wijeyekoon, Carlo R Carere, Mark West, Shresta Nath, Daniel Gapes
Organic waste residues can be hydrothermally treated to produce organic acid rich liquors. These hydrothermal liquors are a potential feedstock for polyhydroxyalkanoate (PHA) production. We investigated the effect of dissolved oxygen concentration and substrate feeding regimes on PHA accumulation and yield using two hydrothermal liquors derived from a mixture of primary and secondary municipal wastewater treatment sludge and food waste. The enriched culture accumulated a maximum of 41% PHA of cell dry weight within 7 h; which is among the highest reported for N and P rich hydrothermal liquors...
April 12, 2018: Water Research
Liang Zhang, Henry Y Sintim, Andy I Bary, Douglas G Hayes, Larry C Wadsworth, Marife B Anunciado, Markus Flury
Polyethylene mulch films used in agriculture are a major source of plastic pollution in soils. Biodegradable plastics have been introduced as alternative to commonly-used polyethylene. Here we studied the interaction of earthworms (Lumbricus terrestris) with polyethylene and biodegradable plastic mulches. The objective was to assess whether earthworms would select between different types of mulches when foraging for food, and whether they drag macroscopic plastic mulch into the soil. Laboratory experiments were carried out with earthworms in Petri dishes and mesocosms...
April 17, 2018: Science of the Total Environment
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