Anti-hemorrhoidal activity of Lian-Zhi-San, a traditional Chinese medicine, in an experimental hemorrhoidal model in rats.

Objective: Hemorrhoidal disease (HD) is the most common proctological disease, with an estimated prevalence rate of 4.4%, and a peak in individuals between 45 and 65 years of age. This study was done to evaluate whether Lian-Zhi-San (LZS), a clinically used anti-hemorrhoidal ointment could alleviate the inflammatory injury, with its associated changes of inflammatory cytokines and morphology of anorectal tissues, in an experimental model of HD in rats.

Zhujie Hewei Granules Ameliorated Reflux Esophagitis in Rats.

Background: Gastroesophageal reflux disease (GERDs) is a common chronic digestive system disease, in which the symptoms of reflux esophagitis (RE) seriously affect the quality of life.

Aims: We aimed to study the therapeutic effect of Zhujie Hewei granules (ZHG) on reflux esophagitis in model rats.

Materials And Methods: A rat model of RE was established with the steps of half pylorus ligation, cardiotomy, and hydrochloric acid perfusion.

Progress in Experimental and Clinical Research of the Diabetic Retinopathy Treatment Using Traditional Chinese Medicine.

Diabetic retinopathy (DR), one of the most common microvascular complications of diabetic mellitus, is currently the main cause of adult-acquired blindness. The pathogenesis of DR is complex and the current clinical application of various treatment methods cannot completely prevent the development of this disease. Many reports have been published regarding the treatment of DR with Traditional Chinese Medicine (TCM), which has received increasing attention from medical practitioners worldwide.

[Evaluation criteria for rat skin anaphylactoid test].

This study is to explore characteristic indexes in evaluation criteria for rat skin anaphylactoid test comparing skin blue spot OD values at the treated position and the control position in the same animal. Common contrast agents, traditional Chinese medicine injections and injections' active pharmaceutical ingredients or excipients in the existing clinical anaphylactoid reaction reports were taken as test drugs in the rat skin anaphylactoid test to define the K value: K > 2 represents positive anaphylactoid reaction, 1.2 ≤ K ≤ 2 represent doubtable anaphylactoid; K < 1.

[Application of factor analysis to evaluate deformation behaviors of frequently-used tablet excipients].

The present work is to investigate the correlation between physical properties and deformation behaviors of tablet excipients, and rank them according to their plastic performances during compaction. The excipients selected were compacted using Korsch XP1 after measuring their physical properties where the compression parameters for evaluating deformation behaviors were Heckle equation, compression work and elastic stretch in die. The correlations between compaction descriptors and physical parameters were analyzed by canonical correlation analysis, and factor analysis was simultaneously employed to synthetically assess deformation behaviors for all our samples.

[Multiple mechanisms of depression].

Depression is a grievous mental disease with an increasing high morbidity year by year and a serious social harm. The pathogenesises of depression is complicated and involves with multi-mechanisms and multi-organs. Recent studies demondtrate that in the nerval system and endocrine system there are many types of neurotransmitters and hormones, as well as their receptors, involved in depression.

[Comparative study on mathematical set-based drug release kinetics method and Kalman filter method applied in evaluating drug release of multi-component traditional Chinese medicine preparations].

Objective: To provide a mathematical set-based method for evaluating drug release kinetics of multi-component traditional Chinese medicine preparations.

Method: With Fuzheng Huayu prescription as the study model, a mathematical set-based method for evaluating drug release kinetics was established to guide the preparation of drug release system of Fuzheng Huayu prescription, and a quantitative evaluation was made for its multi-component drug release characteristics. Its accuracy was verified by Kalman filtering method.

Mono-PEGylated radix ophiopogonis polysaccharide for the treatment of myocardial ischemia.

This work aimed to improve the clinical application of Radix Ophiopogonis polysaccharide (ROP), a natural anti-myocardial ischemic fructan with Mw of 4.80 kDa, by mono-PEGylation. Three mono-PEGylated ROPs were prepared by a moderate coupling reaction between amino-terminated methoxy-PEG (20-, 30-, or 40-kDa) and excessive hydroxyl-activated ROP.

[Determination of rhynchophylline and isorhynchophylline in Uncaria rhynchophylla by HPLC].

Objective: To explore an HPLC method for determination of rhnchophylline and isorhnchophylline in Uncaria rhnchophylla.

Method: An HPLC method has been developed for determination of rhnchophylline and isorhnchophylline. The transformation of rhnchophylline and isorhnchophylline after heating was also studied by HPLC-ESI-MS.

[Discrimination of traditional Chinese medicinal materials with different tastes based on electronic tongue].

Objective: To investigate the use of the electronic tongue in the evaluation of traditional Chinese medicinal materials with sour, bitter, sweet or salty tastes, and assess the possible application of the sensor in the evaluation of different tastes of traditional Chinese medicinal materials.

Method: Aqueous extracts of 22 traditional Chinese medicinal materials were measured by the electronic tongue. The data collected with the tongue was evaluated for discrimination of the samples with multivariate statistical methods: principal component analysis (PCA) and discriminant factor analysis (DFA).

A review of experimental research on herbal compounds in amyotrophic lateral sclerosis.

Amyotrophic lateral sclerosis (ALS) is the most common form of motor neuron disease worldwide, leading to progressive muscle atrophy and paralysis. The limited success of conventional treatment for ALS has prompted investigations into complementary and alternative therapies. Herbal remedies provide good prospects of ALS prevention and treatment, with advantages such as multiple targets, multiple links, and few side effects.

Two new compounds from Hicriopteris glauca and their potential antitumor activities.

Chemical examination of the EtOAc extract from the stems of Hicriopteris glauca (Thunb) Ching. led to the isolation of two new compounds: lunularic acid 4'-glucoside and 2,9-dihydroxy-4,7-megastigmadiene-3-O-β-glucoside. Their structures were elucidated on the basis of spectral analysis and by comparing their spectral data with those in literature.

[Multivariate analysis of relationships between material properties and hygroscopicity of Chinese medicine raw materials].

Material properties and hygroscopicity were determined. Principal component analysis and partial least squares regression were applied to evaluate relationships between material properties and hygroscopicity of Chinese medicine raw materials. The results showed that hygroscopicity was correlated with water content, particle size distribution, water soluble characteristic and cohesion.

[Influence of combination on the specific chromatogram of Glycyrrhiza in sini decoctions by HPLC].

The paper is to report the establishment of an HPLC specific chromatogram of Glycyrrhiza in Sini decoctions and the influence of combination on the specific chromatogram. The RP-HPLC method was used with a Phenomenex Gemini C18 column (250 mm x 4.6 mm ID, 5 microm), and acetonitrile-0.

MDG-1, a polysaccharide from Ophiopogon japonicus exerts hypoglycemic effects through the PI3K/Akt pathway in a diabetic KKAy mouse model.

Ethnopharmacological Relevance: Ophiopogon japonicus is a traditional Chinese medicine that might be helpful for the treatment of type 2 diabetes. Recent studies have confirmed its beneficial properties, but not the mechanism of action.

Aim Of Study: In this study, we examined the effects of a water-soluble β-d-fructan (MDG-1) from O.

Characterization using LC/MS of the absorption compounds and metabolites in rat plasma after oral administration of a single or mixed decoction of Shaoyao and Gancao.

Shaoyao-Gancao decoction (SGD), a traditional Chinese formulation containing Paeoniae Radix (SY) and Glycyrrhizae Radix (GC), is commonly used to relieve abdominal pain. However, the absorption and metabolites of the characteristic constituents of the two herbs in vivo have been reported rarely. The purpose of this study was to investigate the compatibility rationality and the mechanism of the enhanced efficiency of SGD.

Pharmacokinetics, tissue distribution and metabolism of senkyunolide I, a major bioactive component in Ligusticum chuanxiong Hort. (Umbelliferae).

Ethnopharmacological Relevance: Ligusticum chuanxiong Hort. (Umbelliferae) is widely prescribed for treatment of cardiovascular diseases in China for centuries. One of the major bioactive components in L.

PEGylation for drug delivery to ischemic myocardium: pharmacokinetics and cardiac distribution of poly(ethylene glycol)s in mice with normal and ischemic myocardium.

PEGylation now plays an important role in drug delivery and is considered as the method of choice for improving the pharmacokinetics and stability of parenteral agents. However, its application in treating cardiac diseases is still limited. To guide the design of PEGylation for drug delivery to ischemic myocardium, the effects of the molecular weight of PEG and the myocardial ischemic conditions on PEG levels in plasma and myocardium were studied in this work following intravenous administration of fluorescein isothiocyanate-labeled 20- and 40-kDa mPEGs to mice with normal and ischemic myocardium.

[Pharmacokinetics of a long-circulating PEGylated Radix Ophiopogonis polysaccharide].

The pharmacokinetics of a long-circulating PEGylated Radix Ophiopogonis polysaccharide (ROP) was investigated in rats following i.v. or s.

A polysaccharides MDG-1 augments survival in the ischemic heart by inducing S1P release and S1P1 expression.

Ophiopogon japonicus is a traditional Chinese medicine used to treat cardiovascular disease. Recent studies have confirmed the anti-ischemic properties of a water-soluble β-D-fructan (MDG-1) from O. japonicus.

Long-circulating delivery of bioactive polysaccharide from radix ophiopogonis by PEGylation.

Background: Radix ophiopogonis polysaccharide (ROP) has been found to be effective against myocardial ischemia. One of main problems with its use is its short in-vivo half-life, which makes the development of an effective delivery system necessary. To achieve better therapeutic effects and patient compliance by prolonging its retention in plasma and increasing its distribution in targets, ROP was PEGylated (PEG, polyethylene glycol) in this study.

Pharmacokinetics of characteristic effective ingredients from individual and combination Shaoyao and Gancao treatment in rats using HPLC fingerprinting.

Shaoyao-Gancao decoction, a traditional Chinese formulation composed of Paeoniae Radix and Glycyrrhizae Radix, is commonly used to relieve abdominal pain. In this paper, the compatibility rationality of this decoction was investigated. Shaoyao-Gancao decoction, Shaoyao decoction and Gancao decoction were orally administered to rats, respectively.

Comparison of tissue distribution of a PEGylated Radix Ophiopogonis polysaccharide in mice with normal and ischemic myocardium.

PEGylation was found to be a promising approach to improve the anti-myocardial ischemic activity of Radix Ophiopogonis polysaccharide (ROP) by prolonging its retention in plasma. To fully evaluate the effectiveness and safety of this strategy, the tissue distribution of PEGylated ROP was investigated in this study. A long-circulating and bioactive PEGylated ROP with 1.

Hypoglycemic effects of MDG-1, a polysaccharide derived from Ophiopogon japonicas, in the ob/ob mouse model of type 2 diabetes mellitus.

Ophiopogon japonicus is a traditional Chinese medicine used to treat diabetes mellitus. We investigate the anti-ischemic properties of a water-soluble β-D-fructan (MDG-1) from O. japonicus, and assess the antidiabetic effects of MDG-1.

[Pharmacokinetics study on characteristic ingredients of different-dose herbs of shaoyao-gancao decoction].

The paper is to report the observation of pharmacokinetic changes of the characteristic ingredients in the combinations of different-dose herbs of Shaoyao-Gancao decoction. After the establishment of HPLC analytical method of plasma effective constituents, rats were orally administered with different-dose herbs of Shaoyao-Gancao decoction. Blood samples at different times after administering these decoctions were collected, and then were analyzed by HPLC fingerprints technology.