老挝植物一新记录属——泽薹草属(泽泻科)(英文)

首次报道老挝泽泻科(Alismataceae)一新记录属——泽薹草属(Caldesia),及新记录种——宽叶泽薹草(Caldesia grandis)。宽叶泽薹草为旧世界广布属泽薹草属中唯一叶宽大于叶长的物种,原记载分布在中国、孟加拉国、印度和马来西亚。同时,还提供了宽叶泽薹草的描述和其原生境图片。

Quantitative analysis of γ-oryzanol content in cold pressed rice bran oil by TLC-image analysis method

Objective:To develop and validate an image analysis method for quantitative analysis ofγ-oryzanol in cold pressed rice bran oil.Methods:TLC-densitometric and TLC-image analysis methods were developed,validated,and used for quantitative analysis of γ-oryzanol in cold pressed rice bran oil.The results obtained by these two different quantification methods were compared by paired t-test.Results:Both assays provided good linearity,accuracy,reproducibility and selectivity for determination of γ-oryzanol.Conclusions:The TLC-densitomelric and TLC-image analysis methods providett a similar reproducibility,accuracy and selectivity for the quantitative determination of γ-oryzanol in cold pressed rice bran oil.A statistical comparison of the quantitative determinations of γ-oryzanol in samples did not show any statistically significant difference between TLC-densitometric and TLC-image analysis methods.As both methods were found to be equal,they therefore can be used for the determination of γ-oryzanol in cold pressed rice bran oil.

Transient receptor potential channel A1 involved in calcitonin gene-related peptide release in neurons

Transient receptor potential channel A1 is one of the important transducers of noxious stimuli in the primary afferents, which may contribute to generation of neurogenic inflammation and hyperalgesia. The present study was designed to investigate if activation of transient receptor potential channel A1 may induce calcitonin gene-related peptide release from the primary afferent neurons. We found that application of allyl isothiocyanate, a transient receptor potential channel A1 activator, caused calcitonin gene-related peptide release from the cultured rat dorsal root ganglion neurons. Knock- down of transient receptor potential channel A1 with an antisense oligodeoxynucleotide prevented calcitonin gene-related peptide release by allyl isothiocyanate application in cultured dorsal root ganglion neurons. Thus, we concluded that transient receptor potential channel A1 activation caused calcitonin gene-related peptide release in sensory neurons.

基于液相色谱-质谱代谢组学方法辨别两种泰国籼稻冷榨米糠油（英文）

A newly developed liquid chromatography-mass spectrometry(LC-MS)method for the analysis of cold pressed rice bran oil(RBO)was established and used to discriminate between RBOs produced from two different cultivars of major Thai fragrant rice species.The cold pressed RBO was prepared using the screw compression method.The LC-MS data were preprocessed with MZmine 2.10 program before evaluating with principal component analysis using SIMCA 13 software.The LC-MS method was able to detect and quantify several kinds of valuable constituents such as fatty acids,vitamin E,andγ-oryzanol.The chromatographic condition was feasible;short time for analysis and simple method were achieved.From score plot and loading plot of principle component analysis(PCA),two rice cultivar samples were clearly separated,and it was revealed that Khao-Hom-Pathum was more suitable than Khao-Hom-Mali for cold pressed RBO production since it contained high totalγ-oryzanol and less saturated free fatty acids.As with the fixed price of all the rice brans,this information can be used in order to,if possible,preserve the price of rice brans from different cultivars.

Unusual presentation of Brucellosis:Afebrile,culture positive Brucellosis and culture positive,seronegative Brucellosis

Objective:To investigate the unusual presentation of brucellosis.Methods:This prospective study was carried out on 46 patients suspected to brucellosis.The diagnosis was made with isolation of brucella species by Bone Marrow culture.Results:Among 40 culture positive patients,there were two unusual presentations of brucellosis: Afebrile culture positive and culture positive seronegative brucellosis.Conclusion:Some brucellosis patients would not match with criteria for diagnosis of brucellosis.Although it is needed to have positive serology or culture for diagnosis of brucellosis but sometimes,it is the clinical experiences,which help to diagnose and treat these kinds of patients.

Zingiber cassumunar blended patches for skin application:Formulation,physicochemical properties,and in vitro studies

Our work was to study the preparation,physicochemical characterization,and in vitro characteristic of Zingiber cassumunar blended patches.The Z.cassumunar blended patches incorporating Z.cassumunar Roxb.also known as Plai were prepared from chitosan and polyvinyl alcohol with glycerin as plasticizer.They were prepared by adding all ingredients in a beaker and homogeneously mixing them.Then,they were transferred into Petri-dish and dried in hot air oven.The hydrophilic nature of the Z.cassumunar blended patches was confirmed by the moisture uptake,swelling ratio,erosion,and porosity values.The FTIR,DSC,XRD,and SEM studies showed revealed blended patches with amorphous region that was homogeneously smooth and compact in both surface and cross section dimensions.They exhibited controlled the release behavior of(E)-4-(30,40-dimethoxyphenyl)but-3-en-lol(compound D)that is the main active compound in Z.cassumunar for anti-inflammation activity.However,in in vitro skin permeation study,the compound D was accumulated in newborn pig skin more than in the receptor medium.Thus,the blended patches showed the suitable entrapment and controlled release of compound D.Accordingly,we have demonstrated that such chitosan and polyvinyl alcohol formulated patches might be developed for medical use.

Healing effect of aloe vera gel,in non-healed ulcers

Objective:Aloe Vera gel(AVG) has a prominent role as a contemporary folk remedy.The Non-healed chronic ulcers of 16 non-responders to conventional treatment were treated with AVG for which the clinical efficacy was studied.Methods:This study included 16 patients having chronic ulcer(9 males and 7 females) with mean age of 41.8±14.6 who following failure treatment to conventional therapy,were dispensed AVG to apply. AVG is consisted from gel part of Aloe Vera plant plus one preservative material,in this study ECG jelly. The patients were assessed as responder whenever intensity of inflammation,the number and /or the size of ulcers have been reduced.Results:The period of time till healing(complete or reduction in size of ulcer), were from 5 to 160 days with mean of 31.2±36.4 days.The mean time of decreasing for secreting,swelling and redness was from 5-11 days.Spearman coefficient of correlation,showed no significant correlation between first size and depth of ulcer and timing till 50%reduction in size of ulcer.Conclusion:All patients had been treated with conventional treatment all to no avail.There were some full thickness ulcer which at the end of treatment we observed an improvement and normal skin for those ulcers.There was a minor complication like itching in one patient but no leading to stop treatment.These findings suggest that AVG is an excellent and safer choice than current conventional therapeutic management of chronic ulcers.

Swelling behavior of polyvinyl alcohol and lactic acid hydrogel films

Hydrogel films are the thin-film formation that can absorb the water or biological fluids shown as hydrated polymer gels.Hydrogel films have a potential as carriers for bioactive macromolecules,wound dressing,and controlled drug release.Polyvinyl alcohol(PVA)is a biodegradable and biocompatible synthetic polymer which has been widely used in pharmaceutical fields.This work aims to study the swelling behavior of hydrogel films prepared from PVA and lactic acid(LA)intended to use as drug delivery system.

Biological Evaluation of Lysionotin:a Novel Inhibitor of 5-Lipoxygenase for Anti-glioma

Objective:To explore the potential mechanism of lysionotin in treating glioma.Methods:First,target prediction based on Bernoulli Naïve Bayes profiling and pathway enrichment was used to predict the biological activity of lysionotin.The binding between 5-lipoxygenase(5-LO)and lysionotin was detected by surface plasmon resonance(SPR)and molecular docking,and the inhibitory effects of lysionotin on 5-LO and proliferation of glioma were determined using enzyme inhibition assay in vitro and cell viability analysis,respectively.Furthermore,the pharmaceutical effect of lysionotin was explored by cell survival rate analysis and liquid chromatography with tandem mass spectrometry(LC-MS/MS).The protein expression,intracellular calcium ion concentration and cytoskeleton detection were revealed by Western blot,flow cytometry and fluorescence labeling,respectively.Results:Target prediction and pathway enrichment revealed that lysionotin inhibited 5-LO,a key enzyme involved in the arachidonic acid metabolism pathway,to inhibit the proliferation of glioma.Molecular docking results demonstrated that 5-LO can be binding to lysionotin through hydrogen bonds,forming bonds with His600,Gln557,Asn554,and His372.SPR analysis further confirmed the interaction between 5-LO and lysionotin.Furthermore,enzyme inhibition assay in vitro and cell survival rate analysis revealed that 50%inhibition concentration of lysionotin and the median effective concentration of lysionotin were 90 and 16.58µmol/L,respectively,and the results of LC-MS/MS showed that lysionotin inhibited the production of 5S-hydroperoxy-eicosatetraenoic acid(P<0.05),and moreover,the LC-MS/MS results indicated that lysionotin can enter glioma cells well(P<0.01)and inhibit their proliferation.Western blot analysis demonstrated that lysionotin can inhibit the expression of 5-LO(P<0.05)and downstream leukotriene B4 receptor(P<0.01).In addition,the results showed that lysionotin affected intracellular calcium ion concentration by inhibiting 5-LO to affect the cytoskeleton,as determined by flow cytometry and fluorescence labeling.Conclusion:Lysionotin binds to 5-LO could suppress glioma by inhibiting arachiodonic acid metabolism pathway.

Auricular Acupuncture and Biomedical Research——A Promising Sino-Austrian Research Cooperation

Treatment by auricular acupuncture has a long history. Ear-acupoint research has been advancing step by step in China and also in Europe. Auricles are rich in nerves, therefore a close relationship with different functions of the human body has been proved by the research teams of the two main authors of this article from China and Austria. In recent years, great progress has been made in the research of regulating human body functions through electroacupuncture at the auricular branch of the vagus nerve, which is part of auricular acupuncture therapy. It is well known that the auricular branch of the vagus nerve is the only peripheral pathway to the cerebral cortex. Studies of the Chinese team on hypertension, diabetes, epilepsy and depression have shown that the mechanism of auricular vagus nerve stimulation （VNS） may be comparable with cervical VNS in terms of pathways. Auricular VNS has a broad clinical application prospect.

High-Tech Acupuncture for Prevention of Lifestyle Diseases--A Sino-Austrian Cooperation Research Protocol on Heart Rate Variability

Background： Acupuncture can not only be used for well-known diseases, but also for so-called modern lifestyle-related diseases. Using innovative methods like e.g. new analyses of heart rate variability （HRV）, it is also possible to investigate diseases like burnout syndrome, ie., qi deficiency in Chinese medicine （CM）. Objective： The main object of this research protocol is to perform research on the relationship of burnout syndrome and heart rate （HR） and HRV. Methods： A total of 175 patients with burnout syndrome （qi deficiency syndrome） in five groups and 35 healthy volunteers will be investigated. Based on random numbers generated by computer and concealed in opaque envelops, the patients will be assigned to four acupuncture groups using Zusanli （ST 36） acupuncture stimulation, Guanyuan （CV4） acupuncture stimulation, both points, and both points with Streitberger device respectively, and a moxibustion group using both points mentioned above, with 35 cases in each group. Altogether four different experiments are planned. Experiment 1 includes 70 subjects and is a comparison between a burnout group and a control group （healthy volunteers）. The evaluation parameters are different scores and indices of HR and HRV. Experiment 2 includes 140 subjects and compares the efficacy of different acupuncture points. In experiment 3 （105 subjects）, acupuncture and moxibustion should be compared to healthy volunteers. Experiment 4 （70 subjects） investigates the long-term therapeutic effects of acupuncture and moxibustion on the scores of qi deficiency and HR/HRV in qi deficiency patients. In both the acupuncture and moxibustion groups, a total of 10 treatments will be performed. Conclusions： The joint research aims at the scientific evaluation of CM, mainly in the field of HRV. This parameter could be a very good indicator of the state of health and can be influenced by different acupuncture methods, as shown in the past.

越南、老挝蕨类植物新记载(3)——凤尾蕨属(英文)

通过野外调查和标本研究,报道越南、老挝两地凤尾蕨属Pteris7个新记载的物种,它们分别是P.argyraea、四川凤尾蕨P.sichuanensis、两广凤尾蕨P.maclurei、单叶凤尾蕨P.pseudopellucida、有刺凤尾蕨P.setuloso-costulata、琼南凤尾蕨P.morii、栗轴凤尾蕨P.wangiana.

Acupotomy versus sodium hyaluronate for treatment of knee osteoarthritis in rabbits

OBJECTIVE: To investigate the possible advantages of acupotomy over sodium hyaluronate injection for the treatment of knee osteoarthritis(KOA).METHODS: Twenty rabbits were divided randomly into four groups(n = 5 in each): a control group,model group, acupotomy group, and sodium hyaluronate injection group. The model, acupotomy,and sodium hyaluronate groups underwent anterior cruciate ligament transection plus partial medial meniscectomy. Sodium hyaluronate injection and acupotomy were administered to the respective groups from weeks 5 to 8, and samples of the tibial plateau and medial condyle of the femur were collected in week 9. Vascular endothelial growth factor(VEGF) expression was assessed in cartilage and subchondral bone by immunohistochemical staining.RESULTS: Articular cartilage degeneration was less pronounced in the acupotomy compared with the model and sodium hyaluronate groups. VEGF expression levels in cartilage and subchondral bone were increased in the model group compared with the control group(P < 0.01), and acupotomy had a more pronounced therapeutic effect than sodium hyaluronate injection(P < 0.01).CONCLUSION: Acupotomy and sodium hyaluronate injection may both reduce degeneration in the cartilage and subchondral bone in KOA based on the results from a rabbit model, but acupotomy improved the histopathology and reduced the VEGF content more effectively than sodium hyaluronate injection, probably by reducing venous stasis and intraosseous pressure. Acupotomy may improve KOA by lowering VEGF.

Genus Tetrastigma:A review of its folk uses,phytochemistry and pharmacology

The genus Tetrastigma belongs to the Vitaceae family and contains over 100 species.This paper reviewed folk uses,chemical constituents,pharmacological activities,and clinical applications of the medicinal plants in the genus Tetrastigma.In addition,the paper also discussed the current problems for the further studies.Up to now,more than 240 compounds were reported from the genus Tetrastigma,covering 74 flavonoids,14 terpenoids,19 steroids,21 phenylpropanoids,14 alkaloids and others constituents.Among them,flavonoids are the major and the characteristic chemical constituents in this genus.Modern pharmacological studies and clinical practice showed that the extracts and chemical constituents of Tetrastigma species possessed wide pharmacological activities including antitumor,antioxidative,hepatoprotective,antiviral,anti-inflammatory,and analgesic activities.The information summarized in this paper provides valuable clues for new drug discovery and an incentive to expand the research of genus Tetrastigma.

Efficacy of the herbal formula of Foeniculum vulgare and Rosa damascena on elderly patients with functional constipation:A double-blind randomized controlled trial

Background:Constipation is a common chronic bowel disorder with an incidence of more than 50%in the elderly population.Complementary and alternative medicine is a cost-effective and satisfactory treatment for constipation used widely by the elderly.Objective:This study evaluates the efficacy of an herbal formula made from Foeniculum vulgare Mill.and Rosa damascena for the treatment of constipation in an elderly population and consequent changes to their quality of life.Design,setting,participants and intervention:This double-blind randomized active controlled clinical trial,with parallel group allocation ratio of 1:1,was conducted in a referral clinic in Afzalipour Hospital,affiliated to Kerman University of Medical Sciences in Kerman,Southeastern Iran.Individuals over 60 years of age,diagnosed with functional constipation(based on the RomeⅣcriteria),were included in this study.Participants received a sachet of 10 g F.vulgare and R.damascena(herbal formula group)or polyethylene glycol 4000(PEG 4000 group)with a glass of warm water two times a day for 4 weeks and were followed up for 4 additional weeks.Main outcome measures:Constipation severity,stool consistency,and the quality of life were used as the primary outcomes.Drug side effects were used as a secondary outcome.The outcomes were assessed using the Constipation Assessment Scale,the Bristol Stool Form Scale,and the Patient Assessment of Constipation Quality of Life questionnaire.Results:A total of 25 participants in each group completed the four-week treatment cycle and the eightweek follow-up.At the end of the four-week treatment cycle,all clinical outcomes had significant improvements in both groups(P<0.05).The analysis of constipation severity(P<0.001),stool consistency(P<0.001),and the quality of life(P<0.001)showed significant improvements with fewer side effects(mild diarrhea)and a longer duration of symptom relief in the herbal formula group compared to the PEG 4000 group.Conclusion:Although both interventions significantly improved the treatment outcomes,constipation severity,stool consistency and the quality of life were improved more effectively by the herbal formula than by PEG 4000;however,the mechanism of action is not yet understood.Trial registration:This trial was registered in the Iranian Registry of Clinical Trials(IRCTID:IRCT20200108046056N1).

Effects of a Plantago ovata-based herbal compound in prevention and treatment of oral mucositis in patients with breast cancer receiving chemotherapy: A double-blind, randomized, controlled crossover trial

Background: Oral mucositis(OM) is one of the most common complications of mucotoxic cancer therapy.Mucositis induces clinically significant pain, increases the risk of infections and affects the patients’ quality of life.Objective: This study investigated the effects of an herbal preparation from Plantago ovata hydrocolloid in the prevention and treatment of OM, in breast cancer patients undergoing chemotherapy with a regimen including adriamycin.Design, setting, participants, and interventions: This research was a double-blind, randomized, controlled crossover trial. The herbal compound consisted of a mixture of 500 mg of P. ovate husk in 30 m L water plus three drops of vinegar per dose, which was used as a mouthwash. Phytochemical and physicochemical tests of the compound were also performed. Twenty-eight patients who developed mucositis during the chemotherapy screening cycle were randomized to the herbal compound(n = 14) and placebo(n = 14) groups. They received herbal compound or placebo three times per day during their next chemotherapy cycle(cycle 1 of treatment). Patients were crossed over during cycle 2 of treatment and received the alternative therapy. An oral care protocol was prescribed to all patients in cycles 1 and 2 of the treatment.Main outcome measures: The patients were visited at baseline, the end of the first and second weeks of the screening cycle, and the end of the first and second weeks of each of two treatment cycles. The degree of mucositis was used as the main treatment outcome. Other indexes, such as the severity of pain, xerostomia grade and the quality of life were also measured.Results: Compared with the placebo, the herbal compound significantly reduced the degree of mucositis,the severity of pain and the xerostomia grade;it also improved the patients’ quality of life(P < 0.05).Comparison between the screening cycle and placebo treatment group showed that the oral care protocol had a significant effect in the reduction of OM(P < 0.05).Conclusion: The oral care protocol and the herbal compound based on P. ovata are effective ways for preventing and treating OM in patients undergoing mucotoxic cancer therapy.Trial registration: Iranian registry of clinical trials IRCT20180923041093 N1.