Almost periodic solutions for a SVIR epidemic model with relapse.

This paper is devoted to a nonautonomous SVIR epidemic model with relapse, that is, the recurrence rate is considered in the model. The permanent of the system is proved, and the result on the existence and uniqueness of globally attractive almost periodic solution of this system is obtained by constructing a suitable Lyapunov function. Some analysis for the necessity of considering the recurrence rate in the model is also presented.

Unusual Bicyclo[3.2.1]Octanoid Neolignans from Leaves of and Their Effect on Pyruvate Dehydrogenase Activity.

Three undescribed bicyclo[3.2.1]octanoid neolignan glucosides, along with a known neolignan, were isolated from the leaves of Ruiz & Pav.

Anti-allergic Inflammatory Components from the Leaves of Piper crocatum Ruiz & Pav.

Piper crocatum Ruiz & Pav. (P. crocatum), a traditional medicinal plant, has been shown to possess various pharmacological activities, including anticancer activity, antioxidant activity, antibacterial activity, anti-hyperglycemic activity, anti-allergic inflammatory activity and others.

Coumarin and Moracin Derivatives from Mulberry Leaves ( L.) with Soluble Epoxide Hydrolase Inhibitory Activity.

This study identified three coumarins (-), and six moracin derivatives (-). The structures of these natural compounds were determined by the spectroscopic methods, including 1D and 2D NMR methods, and comparison with previous reported data. All of the isolated compounds were assessed for the effects on the soluble epoxide hydrolase (sEH) inhibitory activity.

Anti-Melanogenic Effect of and Its Active Components Protein Kinase A/Cyclic Adenosine Monophosphate-Responsive Binding Protein- and p38 Mitogen-Activated Protein Kinase-Mediated Microphthalmia-Associated Transcription Factor Downregulation.

H. Lév has been reported to have some pharmacologic activities and also interested in functional cosmetics. We found that the water extract of leaves significantly inhibited tyrosinase activity and melanin formation in α-melanocyte stimulating hormone (MSH)-induced B16-F10 cells.

Identification of potential inflammatory inhibitors from Aster tataricus.

Aster tataricus L.f. is a traditional Eastern Asian herbal medicine used for the relief of cough-related illnesses.

Isolation of Two New Compounds and Other Constituents from Leaves of and Study of Their Soluble Epoxide Hydrolase Activities.

Two new phenolic glucosides, pipercroside A and B ( and ), along with 10 known compounds were isolated from the leaves of Ruiz & Pav. Their chemical structures were elucidated through extensive spectroscopic analyses, including 1D and 2D NMR experiments and HR-ESI-MS analysis and comparison with previously reported data. All the isolated compounds were assessed for soluble epoxide hydrolase (sEH) inhibitory activity.

Identification of Anti-Melanogenesis Constituents from L. Leaves.

The individual parts of L. including root bark, branches, leaves, and fruits are used as a cosmetic ingredient in many Asian countries. This study identified several anti-melanogenesis constituents in a 70% ethanol extract of leaves.

[Effects of balanced fertilization on growth and fruit quality of 'Huang-guan' pear on desert area.].

A field experiment was carried out to study the effects of balanced fertilization on growth and development, yield, fruit quality and mineral content in 'Huang-guan' pear to provide a theoretical basis for the reasonable level of fertilization in pear orchards. Four treatments were arranged with 12-year old 'Huang-guan' pear trees from the same orchard: conventional fertilization (CK), low levels of N, PO and high level of S (T), medium levels of N, PO and S (T), high levels of N, PO and low level of S (T). The results showed that different treatments had little effect on the growth and development of current-year branch and leaves in the first year.

Anti-allergic inflammatory components from Sanguisorba officinalis L.

Sanguisorba officinalis L. was well known as a traditional herbal medicine to treat inflammation and allergic skin diseases. The aim of this research was to indentify compounds with anti-allergic inflammatory property.

Standardization of extract mixture of Chaenomeles sinensis and Phyllostachys bambusoides for anti-obesity by HPLC-UV.

JM-101 is a developed functional food formula using water extract of Chaenomeles sinensis and Phyllostachys bambusoides for anti-obesity. Standardization and quality control of herb mixture is more difficult than those of single herb. Additionally, the estimation of mixing ratio is an essential requirement for standardization.

Lipolytic effect of compounds isolated from leaves of mulberry (Morus alba L.) in 3T3-L1 adipocytes.

In this study, 19 known compounds were isolated from mulberry (Morus alba L.) leaves. The lipid accumulation inhibitory activity of the isolated compounds was investigated.

Molecular mechanism of interaction and electron transfer between dihydric phenols and L-cysteine.

The mechanism and electron transfer for pollutant dihydric phenol and biomolecule L-Cysteine (L-Cys) interaction in aqueous solution were studied by means of electrochemistry and UV-VIS spectrophotometry. Two forms of L-Cys, fixed on Au-electrode and free dissolved in the solution, were examined. The results showed that L-Cys of an ordered monolayer fixed on an Au electrode facilitated electron transfer and electrocatalytic redox of three isomers of dihydric phenol.