Synergic action of bamboo-cellulose-supported hydrogen-bonded nano-AgBr for robust photocatalysis.

A novel semiconductor photocatalyst was developed using bamboo cellulose fibers (BCFs) embedded with nano-AgBr (AgBr@BCFs) via a simple and rapid method. BCFs prevented the agglomeration of AgBr and provided numerous active reaction sites as a dispersant and structural support. The photocatalytic activity of AgBr@BCFs in removing organic pollutants was investigated and the endogenous factors leading to the high activity were analyzed through a combination of a series of experiments, characterizations and theoretical calculations.

Predicting Lactobacillus delbrueckii subsp. bulgaricus-Streptococcus thermophilus interactions based on a highly accurate semi-supervised learning method.

Lactobacillus delbrueckii subsp. bulgaricus (L. bulgaricus) and Streptococcus thermophilus (S.

OsCCRL1 is Essential for Phenylpropanoid Metabolism in Rice Anthers.

Phenylpropanoid metabolism and timely tapetal degradation are essential for anther and pollen development, but the underlying mechanisms are unclear. In the current study, to investigate this, we identified and analyzed the male-sterile mutant, osccrl1 (cinnamoyl coA reductase-like 1), which exhibited delayed tapetal programmed cell death (PCD) and defective mature pollen. Map-based cloning, genetic complementation, and gene knockout revealed that OsCCRL1 corresponds to the gene LOC_Os09g32020.

N4-acetylcytidine regulates the replication and pathogenicity of enterovirus 71.

Chemical modifications are important for RNA function and metabolism. N4-acetylcytidine (ac4C) is critical for the translation and stability of mRNA. Although ac4C is found in RNA viruses, the detailed mechanisms through which ac4C affects viral replication are unclear.

OsFLA1 encodes a fasciclin-like arabinogalactan protein and affects pollen exine development in rice.

OsFLA1 positively regulates pollen exine development, and locates in the cellular membrane. Arabinogalactan proteins are a type of hydroxyproline-rich glycoprotein that are present in all plant tissues and cells and play important roles in plant growth and development. Little information is available on the participation of fasciclin-like arabinogalactan proteins in sexual reproduction in rice.

An induced-fit de novo initiation mechanism suggested by a pestivirus RNA-dependent RNA polymerase.

Viral RNA-dependent RNA polymerases (RdRPs) play central roles in the genome replication and transcription processes of RNA viruses. RdRPs initiate RNA synthesis either in primer-dependent or de novo mechanism, with the latter often assisted by a 'priming element' (PE) within the RdRP thumb domain. However, RdRP PEs exhibit high-level structural diversity, making it difficult to reconcile their conserved function in de novo initiation.

A positively charged surface patch on the pestivirus NS3 protease module plays an important role in modulating NS3 helicase activity and virus production.

Pestivirus nonstructural protein 3 (NS3) is a multifunctional protein with protease and helicase activities that are essential for virus replication. In this study, we used a combination of biochemical and genetic approaches to investigate the relationship between a positively charged patch on the protease module and NS3 function. The surface patch is composed of four basic residues, R50, K74 and K94 in the NS3 protease domain and H24 in the structurally integrated cofactor NS4A.

Percutaneous Interstitial Nd:YAG Laser Therapy for Axillary Osmidrosis.

Background And Objectives: To investigate the effects of percutaneous interstitial Nd:YAG laser irradiation on the apocrine glands and molecules involved in odor production (apolipoprotein [ApoD], androgen receptor [AR]) in the subcutaneous tissue of a pig.

Study Design/materials And Methods: Skin on the back of healthy adult miniature pigs was exposed to pulsed Nd:YAG laser irradiation at 5 or 10 W, or continuous Nd:YAG laser irradiation at 10 W. Samples were taken 1 hour, 1 week, and 1 month after treatment for histology, western blot, and real-time quantitative polymerase chain reaction (qRT-PCR) analysis.

Copper Nanowires Modified with Graphene Oxide Nanosheets for Simultaneous Voltammetric Determination of Ascorbic Acid, Dopamine and Acetaminophen.

Copper nanowires (Cu NWs) were modified with graphene oxide (GO) nanosheets to obtain a sensor for simultaneous voltammetric determination of ascorbic acid (AA), dopamine (DA) and acetaminophen (AC). The nanocomposite was obtained via sonication, and its structures were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) and energy-dispersive X-ray spectroscopy (EDS). The electrochemical oxidation activity of the materials (placed on a glassy carbon electrode) was studied by cyclic voltammetry and differential pulse voltammetry.

A unique intra-molecular fidelity-modulating mechanism identified in a viral RNA-dependent RNA polymerase.

Typically not assisted by proofreading, the RNA-dependent RNA polymerases (RdRPs) encoded by the RNA viruses may need to independently control its fidelity to fulfill virus viability and fitness. However, the precise mechanism by which the RdRP maintains its optimal fidelity level remains largely elusive. By solving 2.

Prognostic value of somatosensory evoked potentials, neuron-specific enolase, and S100 for short-term outcome in ischemic stroke.

To predict short-term outcome in acute ischemic stroke, we analyzed somatosensory evoked potentials (SEP) and biochemical parameters [neuron-specific enolase (NSE) and S100 protein] in a prospective study with serial measurement. In 31 patients with 1st middle cerebral artery infarction, serum NSE and S100 protein were measured daily between days 1 and 6 poststroke. The N20 and N70 components of the SEP (SEP20 and SEP70) were determined on days 1 and 6.

A Structural Overview of RNA-Dependent RNA Polymerases from the Flaviviridae Family.

RNA-dependent RNA polymerases (RdRPs) from the Flaviviridae family are representatives of viral polymerases that carry out RNA synthesis through a de novo initiation mechanism. They share a ≈ 600-residue polymerase core that displays a canonical viral RdRP architecture resembling an encircled right hand with palm, fingers, and thumb domains surrounding the active site. Polymerase catalytic motifs A-E in the palm and motifs F/G in the fingers are shared by all viral RdRPs with sequence and/or structural conservations regardless of the mechanism of initiation.

Prognostic value of electroencephalography and evoked potentials in the early course of malignant middle cerebral artery infarction.

Space-occupying brain edema may lead to a malignant course in patients with large middle cerebral artery infarction. Decompressive hemicraniectomy has to be initiated early to prevent further tissue damage. In this retrospective study, we analyzed electroencephalography (EEG) and evoked potentials (EPs), obtained within 24 h after onset of stroke, in 22 patients suffering from a large middle cerebral artery infarction.

[Indwelling the anterior urethral stent: a good treatment option for anterior urethral stricture].

Objective: To observe the clinical effect of indwelling the anterior urethral stent in the treatment of anterior urethral stricture.

Methods: We included 38 patients with anterior urethral stricture in the treatment group, and another 38 in the control, the former treated by indwelling the anterior urethral stent, and the latter by urethral dilatation. Then we analyzed the clinical results by comparing the Qmax, urinary hesitancy and numbers of urethral dilations between the two groups.

Evoked potentials in acute ischemic stroke within the first 24 h: possible predictor of a malignant course.

Objective: In patients with large middle cerebral artery (MCA) infarction, space-occupying brain edema may lead to a malignant course with up to 80% mortality, under conservative treatment. As interventional treatment strategies must be started before the deterioration occurs, predictors of a malignant course are necessary.

Material And Methods: This study reports on the results of evoked potentials (brainstem auditory evoked potentials [BAEP] and median-nerve somatosensory evoked potentials [SEP]) within 24 h after onset of stroke in 30 patients suffering a large MCA infarct (14 patients with a malignant and 16 with a non-malignant course).

Belly dancer's syndrome following central pontine and extrapontine myelinolysis.

We report on a woman with delayed-onset of belly dancer's syndrome 5 months after central pontine and extrapontine myelinolysis (CPM/EPM) and severe hyponatriemia. This case demonstrates that basal ganglia lesions in EPM can be the underlying pathoanatomic substrate for the rarely observed belly dancer's syndrome. The sequential appearance of extrapyramidal symptoms might reflect an ongoing but ineffective or deficient remyelination process.

Botulinum toxin A for neuropathic pain after neck dissection: a dose-finding study.

Objectives: Botulinum toxin type A (BtxA) has been reported to be feasible in chronic neuropathic pain after neck dissection. The impact of the dose on the outcome has not been investigated yet.

Study Design: Twenty-three patients with neuropathic pain after neck dissection were selected for an open and prospective phase II trial.

Outpatient procedures on the glans and anterior urethra under a new local anaesthesia: intracorpus spongiosum anaesthesia.

Objective: To determine the efficacy of intracorpus spongiosum anaesthesia during minor procedures on the glans and anterior urethra in the outpatient clinic.

Methods: Sixty-nine consecutive male patients underwent various procedures on the glans penis or anterior urethra under intracorpus spongiosum anaesthesia, which was performed by injection of 3 mL of 1% lidocaine into the glans penis. The effect of this anaesthetic technique was assessed by questionnaire using a pain scale.

Botulinum toxin type A for the treatment of chronic neck pain after neck dissection.

Background: Neck dissection surgery is often followed by chronic head and neck pain. To date optimal treatment of this type of pain is lacking. Botulinum toxin type A (BTX-A) has been shown to be effective in the treatment of myofascial pain syndrome and headache.

[In vivo HSV-TK gene transfer and the therapeutic effects of ganciclovir on bladder cancer in mice with HSV-TK gene transfer].

Objective: To explore an effective method for in vivo HSV-TK gene transfer and observe the therapeutic effect of ganciclovir (GCV) on bladder cancer in mice after receiving such gene transfer therapy.

Methods: Mice models bearing subcutaneous tumors of bladder cancer were established in 24 syngeneic mice, and HSV-TK gene transfer was performed by means of naked DNA plasmids, DNA-liposome complex or retroviral mediators respectively. GCV treatment was administered in all the mice and its effect on the growth of the tumor was subsequently observed.