Lesión hepática inducida por consumo de Valeriana officinalis y Passiflora incarnata, reporte de caso / Hepatic injury induced by the consumption of Valeriana officinalis and Passiflora incarnata, a case report

Los medicamentos homeopáticos y fitoterapéuticos que contienen productos herbarios son cada vez más utilizados, sin embargo, se desconoce el potencial de efectos adversos por parte de los usuarios y personal sanitario. Se reporta el caso de una mujer de 34 años quien consulta por dolor abdominal y náuseas, con alteraciones al ingreso de función hepática con patrón hepatocelular, se descartaron múltiples etiologías y se consideró que pudiera ser lesión hepática medicamentosa secundaria al consumo de medicamentos desde hacía una semana para dismenorrea, y a fitoterapéuticos que consumía de forma crónica, los cuales se suspendieron. A los doce días de su egreso, reingresó por sintomatología similar; se documentó nuevamente perfil hepático con patrón hepatocelular. Al reinterrogatorio, la paciente comentó la ingesta crónica de Valeriana officinalis y Passiflora incarnata, que retomó al egreso hospitalario, por lo que luego de descartar diagnósticos diferenciales, se consideró que el cuadro era inducido por el consumo de dichos medicamentos. Durante la hospitalización se suspendió su consumo, con normalización del perfil hepático. Es importante que los consumidores estén informados sobre los riesgos potenciales de los productos herbarios, sus efectos por consumos prolongados y las implicaciones de la autoformulación.

Homeopathic and phytotherapeutic medicines containing herbal products are increasingly used, however the potential for adverse effects on users and healthcare personnel is unknown. We report the case of a 34-year-old woman who consulted for abdominal pain and nausea, accompanied by hepatocellular pattern on liver function tests. Multiple etiologies were ruled out and it was considered that it could be a drug-induced liver injury secondary to the consumption of medications she had been taking a week prior for dysmenorrhea, and phytotherapeutics that she had been taking for seve-ral years, which were all discontinued. Twelve days after her discharge, she was readmitted due to similar symptoms; a liver profile with a hepatocellular pattern was again documented. Upon further questioning, the patient mentioned a chronic intake of Valeriana officinalis and Passiflora incarnata, which she resumed upon discharge. After ruling out the differential diagnoses, it was concluded that the symptoms of the patient were induced by the consumption of these herbal products. During hos-pitalization, their consumption was suspended, with normalization of the liver profile. It is important that consumers are informed about the potential risks of herbal products, their effects from long-term use, and the implications of self-medication.

Capacidad pro-apoptótica in vitro de Valeriana rígida y Valeriana decusata sobre una línea celular de cáncer de mama / In vitro pro-apoptotic capacity of Valerian rigid and Valerian decussata in cancer cells

Resumen El cáncer representa un problema de salud pública a nivel mundial, con altas tasas de incidencia y mortalidad en países desarrollados y no desarrollados. En la actualidad se están evaluando alternativas terapéuticas de origen natural, con el propósito de establecer tratamientos más eficientes y menos invasivos. Dado que la apoptosis es el tipo de muerte programada que experimentan las células cancerosas por los tratamientos con los fármacos antineoplásicos,el objetivo de esta investigación, fue evaluar in vitro la capacidad pro-apoptótica y citotóxica de los extractos de valeriana, sobre una línea celular de cáncer de mama (MCF-7). En este estudio las células MCF7 se cultivaron y trataron con diferentes concentraciones de los extractos de la raíz, hojas y tallos de Valeriana rígida y Valeriana decussata. La viabilidad celular se evaluó mediante el ensayo MTT. Para la determinación de la expresión génica de las proteínas anti y pro-apoptóticas (Bax, Bcl-2 y p53), se usó el ensayo de la PCR cuantitativa de transcripción inversa. Las diferentes concentraciones de los extractos (10-8 a 10-1 mg/mL) disminuyeron la viabilidad (proliferación) celular en concentraciones dependientes. Estos extractos indujeron la expresión génica de las proteínas Bax y Bcl-2, pero no de p53. La expresión de Bax fue mayor que la de Bcl-2 e indujo un elevado índice Bax/Bcl-2 (condición proapoptotica). En conclusión, se determinó que los extractos de Valeriana decussata y Valeriana rígida poseen efecto reductor de la viabilidad (proliferación) de la línea celular de cáncer de mama MCF-7, probablemente mediado por la alteración de la relación de las proteínas Bax y Bcl-2 vinculadas a la apoptosis.

Abstract Cancer represents a worldwide public health problem, with high incidence and mortality rates in developed and undeveloped countries. Currently, therapeutic alternatives of natural origin are being evaluated with the purpose of establishing more efficient and less invasive treatments. Apoptosis is the type of programmed death cancer cells undergo during treatment with anti-neoplastic drugs. Therefore, the aim of this research was to evaluate in vitro the pro-apoptotic and cytotoxic capacity of valerian extracts on a breast cancer cell line (MCF-7). In this study, MCF7 cells were cultured and treated with different concentrations of the extracts of the root, leaves and stems of Valeriana rígida and Valeriana decussata. Cell viability was assessed by the MTT assay. Quantitative reverse transcription PCR assays were used for the determination of gene expression of anti- and proapoptotic proteins (Bax, Bcl-2, p53). Different concentrations of the extracts (10-8 to 10-1 mg/mL) decreased cell viability (proliferation) in a concentration-dependent manner. These extracts induced gene expression of Bax and Bcl-2 proteins but not of p53. The expression of Bax was higher than that of Bcl-2, causing an elevated Bax/Bcl-2 ratio (proapoptotic condition). In conclusion, it was determined that Valeriana decussata and Valeriana rígida extracts have a viability (proliferation) reducing effect on the MCF-7 breast cancer cell line, probably mediated by altering the ratio of Bax and Bcl-2 proteins linked to apoptosis.

Pharmacological Actions of Valeriana Wallichii (Tagara): A Fundamental Analysis Supporting Traditional Benefits

Valeriana wallichii referred to as Indian Valeriana has a family circle Valerianaceae commonly known as "Tagara". India, Nepal, and China are home to the important variety of the Valeriana genus. It is indigenous to India and can be found between 8000-10000 feet altitudes in the Himalayan region. Valeriana is a popular ethnobotanical remedy throughout Europe for relieving stress and improving sleep. Vital Central nervous system (CNS) activity is mirrored in the genuine Ayurvedic text-based content and declared as one of the handiest treatments with inside the remedy of neurosis and is powerful in pacifying the body ache (Vedanasathpana), chills (Sheetprashmana), and headaches (Shirah shoolprshmana). Additionally, it has been addressed in the Charaka Samhita as a remedy for snake poisoning. The rhizome and supporting tissues of valerian are used to treat insomnia, epilepsy, hypertension, and psychosomatic disorders. Important phytochemicals can reduce pain, manage stress, protect the brain from radiation, and fight off microbes. Hesperidin, the statutory potent flavonoid, 6-methylapigenin, and four new varieties of the iridoids Valeriotetrates B and C, 8-methylvalepotriate, and 1,5-dihydroxy-3,8-epoxyvalechlorine A are just a few of the naturally occurring active phytochemicals in the Valeriana wallichii.

Sesquiterpenoids and iridoids from Valeriana jatamansi with anti-inflammatory and anti-influenza virus properties / 药学学报

Three sesquiterpenoids and nine iridoids were isolated from the roots and rhizomes of Valeriana jatamansi by various chromatographic methods. Their structures were identified by physicochemical properties, NMR and MS data. Among them, valeriananoid G (1) was a new patchoulol-type sesquiterpenoid, and compound 3 was isolated from the genus Valeriana for the first time. Compounds 3 and 10 exhibited significant inhibitory effects on nitric oxide production induced by lipopolysaccharide in RAW 264.7 macrophages, with IC50 values of 19.00 and 3.66 μmol·L-1, respectively. In addition, compounds 4, 6 and 12 showed anti-influenza virus activity with IC50 values of 51.75, 51.40 and 102.08 μmol·L-1, respectively.

Valerian treatment during the postpartum period alters breast milk composition and impairs long-term memory in female rat offspring

Maternal anxiety symptoms in the perinatal period might have long-term health effects on both the mother and the developing child. Valerian is a phytotherapeutic agent that is widely used for the treatment of anxiety. This study investigated the effects of valerian treatment in postpartum rats on maternal care, toxicity, and milk composition. Postnatal development, memory, and anxiety behavior in the offspring were also assessed. Postpartum Wistar rats received the valerian (500, 1000, or 2000 mg·kg-1·day-1) by oral gavage. Clinical and biochemical toxicity was evaluated with commercial kits. Maternal behavior was observed daily. Milk composition was analyzed by colorimetric methods. Physical and neuromotor tests were used to analyze postnatal development. Anxiolytic activity was assessed by the elevated plus maze, and memory was evaluated by the step-down inhibitory avoidance task. Maternal toxicity and care behavior were not altered by the treatment, while only the highest dose promoted a significant increase of lactose, and the doses 1000 and 2000 mg·kg-1·day-1 promoted a reduction of protein contents in milk. Postnatal development was similar in all offspring. Adult offspring did not display altered anxiety behavior, while long-term memory was impaired in the female adult offspring by maternal treatment with 1000 mg·kg-1·day-1. These results suggested that high doses of valerian had significant effects on important maternal milk components and can cause long-term alterations of offspring memory; thus, treatment with high doses of valerian is not safe for breastfeeding Wistar rat mothers.

Optimization of SRAP-PCR System for Valeriana officinalis var. latifolia and Primer Screening / 中国实验方剂学杂志

Objective:To establish the sequence-related amplified polymorphism （SRAP）-polymerase chain reaction （PCR） system for <italic>Valeriana officinalis</italic> var. <italic>latifolia</italic>，so as to lay the theoretical and technical foundations for the breeding of<italic> V. officinalis </italic>var. <italic>latifolia</italic>. Method:Single factor test was applied to investigate the effects of <italic>Taq</italic> Mix dose，Mg²⁺concentration，template DNA concentration，and <italic>Taq </italic>DNA polymerase content on SRAP-PCR amplification of <italic>V. officinalis </italic>var. <italic>latifolia</italic>，based on which the orthogonal experiments were performed to optimize the SRAP-PCR system for <italic>V. officinalis </italic>var. <italic>latifolia</italic>. The effective primers that could be used for genetic diversity studies of <italic>V. officinalis</italic> var. <italic>latifolia </italic>were selected under the optimal reaction condition. Result:The results of the single factor test showed that <italic>Taq </italic>Mix dose within the range of 8-11 μL resulted in better amplification. The addition of a low concentration of Mg²⁺，the medium to low concentrations of template DNA，or the low concentration of <italic>Taq</italic> DNA polymerase enhanced the amplification efficiency or richness. As demonstrated by the orthogonal experiments，the influencing degrees of related factors on SRAP-PCR amplification of <italic>V. officinalis</italic> var. <italic>latifolia </italic>were sorted in a descending order as follows： <italic>Taq</italic> Mix dose><italic>Taq</italic> DNA polymerase content>Mg²⁺ concentration>template DNA concentration. The optimal reaction system for <italic>V. officinalis</italic> var. <italic>latifolia </italic>was determined to consist of 11 μL of <italic>Taq</italic> Mix，30 ng of template DNA，0.025 mmol·L^-1Mg²⁺，1.5 U<italic> </italic>of<italic> Taq </italic>DNA polymerase，5 μmol·L^-1 forward primer，and 5 μmol·L^-1 reverse primer，which was supplemented to 20 μL with ddH₂O. The optimal annealing temperature was 36.8 ℃. A total of 17 pairs of effective primers with high band resolution and polymorphism were selected from 88 primer pairs for SRAP-PCR of <italic>V. officinalis</italic> var. <italic>latifolia</italic>. Conclusion:The established SRAP-PCR system for <italic>V. officinalis</italic> var. <italic>latifolia</italic> is stable， which can be used for genetic diversity studies of <italic>V. officinalis</italic> var. <italic>latifolia</italic>.

Effect of Iridoid-rich Fraction from Valeriana Jatamansi Jones on Neuron Pyroptosis in Rats with Acute Spinal Cord Injury / 中国康复理论与实践

Objective:To investigate the effects of iridoid-rich fraction from Valeriana jatamansi Jones (IRFV) on neuronal pyroptosis in rats with acute spinal cord injury, and to explain the related mechanism of neuroprotection. Methods:Twenty-four healthy male Sprague-Dawley rats were randomly divided into sham-operated group, model group and treatment group, with eight rats in each group. The model of spinal cord injury was established by using a medical aneurysm clip in the latter two groups. Only the lamina was removed without injury to the spinal cord in the sham-operated group. Four hours after the operation, the treatment group was given IRFV solution 10 mg/kg, the model group and the sham-operated group were given the same volume of sodium carboxymethyl cellulose (CMC-Na) solution, for seven days. The rats were sacrificed to detected the pathological changes and the residual area of spinal cord tissue through HE staining. The apoptosis of nerve cells of the spinal cord tissue at the perilesional area was detected by TUNEL fluorescent staining. The levels of interleukin (IL)-1 and IL-18 in serum were detected by ELISA Kit and the expression of NLRP3, Caspase-1 and GSDMD were detected by Western blotting. Results:Compared with the sham-operated group, the residual area of spinal cord tissue decreased (P < 0.05), and the positive rate of TUNEL staining, the level of IL-1 and IL-18, and the expression of pyroptosis-associated proteins (NLRP3, Caspase-1 and GSDMD) increased (P < 0.05) in the model group. Compared with the model group, the pathological condition of the spinal cord tissue improved and the residual area of the spinal cord tissue increased (P < 0.05); the positive rate of TUNEL staining, the level of IL-1 and IL-18 and the expression of NLRP3, Caspase-1 and GSDMD decreased (P < 0.05) in the treatment group. Conclusion:IRFV could attenuate the inflammatory response to exert neuroprotective effects, which may be related to the regulation of NLRP3/Caspase-1 signaling pathway to inhibit the neuronal pyroptosis in rats with acute spinal cord injury.

Effect of Valeriana jatamansi extract on fecal UPLC-MS/MS metabolomics in rats with diarrheal irritable bowel syndrome / 中国中药杂志

The purpose of this study was to understand the pharmacodynamic effect of Valeriana jatamansi extract in diarrhea predominant irritable bowel syndrome(IBS-D) rat model induced by maternal separation combined with three kinds of stress, and observe the changes of endogenous metabolites in feces after intervention to find potential biomarkers and related metabolic pathways. The animal model of IBS-D was established by maternal separation combined with restraint, ice swimming and tail clamping. The therapeutic effect of each dose group of V. jatamansi extract was evaluated in terms of abdominal withdrawal reflex pressure threshold, fecal water content and immobility time of forced swimming test. In addition, rat feces were collected for detection of metabolic profiles of small molecular metabolites with UPLC-LTQ-Orbitrap MS platform, so as to find the biomarkers of differential metabolism with multivariate statistical analysis methods such as principal component analysis(PCA) and orthogon partial least squares discrimination analysis(OPLS-DA). The results showed that as compared with the normal group, the threshold of abdominal withdrawal reflex pressure was decreased, the fecal water content was increased, and the immobility time of forced swimming test was prolonged in the model group. The results of fecal metabonomics showed that the levels of 39 metabolites were down-regulated and those of 37 metabolites were up-re-gulated. Further analysis showed that these metabolites were related to bile acid metabolism, unsaturated fatty acid metabolism, amino acid metabolism, ceramide metabolism and other metabolic pathways. This study proved that the extract of V. jatamansi had definite pharmacodynamic effect on IBS-D model rats, and the mechanism was discussed from the perspective of fecal metabonomics.

Effects of Valeriana amurensis Roots and Rhizomes Extract and Its Active Constituents on Activities of Drug Metabolism Enzymes in Liver / 中国实验方剂学杂志

Objective::To evaluate the effects of Valeriana amurensis roots and rhizomes extract and its active constituents on the activities of six major cytochrome P450 (CYP450) enzymes in human liver microsomes. Method::Coumarin, bupropion, tolbutamide, omeprazole, dextromethorphan and testosterone were used as probe substrates for CYP2A6, CYP2B6, CYP2C9, CYP2C19, CYP2D6 and CYP3A4, respectively. Taking their specific metabolites of hydroxylation or demethylation (7-hydroxycoumarin, hydroxybupropion, 4-hydroxytolbutamide, 5-hydroxyomeprazole, dextromethorphan, 6β-hydroxytestosterone) as indicators of enzyme activities. The analytical indexes were used to establish an in vitro model of human liver microsomes of Cocktail probe substrates. This method was applied to evaluate the effects of V. amurensis roots and rhizomes extract and its active constituents on human liver microsomal enzymes. Result::The V. amurensis roots and rhizomes extract had different inhibitory effects on CYP2B6, CYP2C9, CYP2D6 and CYP3A4, their half-inhibitory concentration (IC50) values were 87.49, 1.73, 68.29, 2.80 mg·L-1, respectively. Among the 9 lignans, (-)-massoniresinol-3α-O-β-D-glucopyranoside had a moderate inhibitory effect on CYP2A6 with an IC50 value of 8.51 μmol·L-1, 8, 8′-dihydroxypinoresinol-4, 4′-di-O-β-D-glucopyranoside had a moderate inhibitory effect on CYP2D6 with an IC50 value of 8.73 μmol·L-1, (+)-medioresinol-4, 4′-O-di-β-D-glucopyranoside had a moderate inhibitory effect on CYP2B6 and CYP2C9 with IC50 values of 5.41 μmol·L-1 and 8.20 μmol·L-1. Conclusion::The V. amurensis roots and rhizomes extract and its active constituents have inhibitory effects on liver CYP450 enzymes. Therefore, in the clinical study of new drugs, it is necessary to fully evaluate the risk of drug interactions caused by combination therapy.

Dynamic changes of the main active constituents in valerian rhizome and root (Valeriana amurensis Smir. ex Kom.) during different harvest periods / Cambios dinámicos de los principales constituyentes activos del rizoma y raíz valeriana (Valeriana amurensis Smir. Ex Kom.) durante diferentes períodos de cosecha

Valeriana amurensis Smir. ex Kom. widely distributed in the northeast region of China and some region in Russia and Korea, and its underground parts (roots and rhizomes) being used to cure nervous system diseases such as insomnia. The active components including the essential oil and iridoids of underground parts were investigated in different harvest periods in order to evaluate the quality for the roots and rhizomes of V. amurensis. The content of the essential oil was obtained by hydrodistillation and bornyl acetate in the oil was quantitated by GC-EI. The iridoids, valepotriates were determined by potentiometric titration and the main component, valtrate was quantitated by HPLC-UV. The factors of biomass were considered in the determination of collection period. Statistical analysis of results showed that, the highest content of the essential oil per plant was 22.69 µl in withering period and then 21.58 µl in fruit ripening period, while the highest contents of bornyl acetate, valepotriates and valtrate per plant were 2.82 mg, 31.90 mg and 0.98 mg in fruit ripening period separately. Fruit ripening period was decided as the best harvest period for the content of active constituents and output of drug, and it would provide scientific basis for the artificial cultivation of V. amurensis.

Valeriana amurensis Smir. ex Kom. Se distribuye ampliamente en la región noreste de China y en algunas regiones de Rusia y Corea, y sus partes subterráneas (raíces y rizomas) se utilizan para curar enfermedades del sistema nervioso como el insomnio. Se investigaron los componentes activos, incluidos el aceite esencial y los iridoides de las partes subterráneas de V. amurensis en diferentes períodos de cosecha para evaluar la calidad de las raíces y rizomas. El contenido del aceite esencial se obtuvo mediante hidrodestilación y el acetato de bornilo en el aceite se cuantificó por GC-EI. Los iridoides, valepotriatos se determinaron mediante valoración potenciométrica y el componente principal, el valtrato se cuantificó por HPLC-UV. Los factores de biomasa fueron considerados en la determinación del período de recolección. El análisis estadístico de los resultados mostró que el mayor contenido de aceite esencial por planta fue de 22,69 µl en el período de marchitación y luego de 21,58 µl en el período de maduración de la fruta, mientras que el mayor contenido de acetato de bornilo, valepotriatos y valtrato por planta fue de 2.82 mg, 31.90 mg y 0,98 mg, respectivamente, en el período de maduración de la fruta por separado. Se definió el período de maduración de la fruta como el mejor período de cosecha para el contenido de constituyentes activos y la producción de droga, lo cual proporcionaría una base científica para el cultivo artificial de V. amurensis.

Analysis of spontaneous adverse drug reactions to echinacea, valerian, black cohosh and ginkgo in Australia from 2000 to 2015 / 中西医结合学报

OBJECTIVE@#Assessing adverse drug reactions (ADRs) is a proven method to estimate the safety of medicines. The ADRs to herbal medicines in Australia (and by inference, the safety of herbal medicines in Australia) remain unknown. This study examines spontaneous ADR cases to four of the most popular herbs in Australia from 2000 to 2015: echinacea (Echinacea purpurea), valerian (Valeriana officinalis), black cohosh (Actaea racemosa) and ginkgo (Ginkgo biloba).@*METHODS@#ADRs of echinacea, valerian, black cohosh and ginkgo reported to the Australian Therapeutic Goods Administration (TGA) between 2000 and 2015 were obtained from the TGA database. Data were collated and analysed according to age, sex, severity, type of ADR and body system affected. Statistics were calculated using GraphPad Prism software.@*RESULTS@#Most ADRs were mild or moderate. However, every herbal medicine was associated with life-threatening ADRs. In each life-threatening case, the herbal medicine was taken concomitantly with prescription medications. Black cohosh was associated with a significant number of severe ADRs (30.3% of the total), with 39.4% of these ADRs being associated with abnormal hepatic function, hepatitis or hepatotoxicity.@*CONCLUSION@#This study highlights the lack of public awareness with regard to herb-drug interactions, since most of the severe ADRs involved a herb-drug interaction.

Hplc fingerprint and chemical pattern recognition of valeriana jatamansi / 中国药学杂志

OBJECTIVE: To establish the HPLC fingerprint of Valeriana jatamansi and provide a reference for its effective quality control. METHODS: The HPLC-DAD analysis was performed on Diamonsil C18 column (4.6 mm×250 mm, 5 μm), with acetonitrile (A)-0.1% formic acid (B) solution as the mobile phase for gradient elution, the detection wavelength was set at 327 nm (0-33 min) and 256 nm (33-90 min), the flow rate was 1.0 mL•min-1, and the column temperature was maintained at 30 ℃. The fingerprints of 25 batches of Valeriana jatamansi samples were analyzed by similarity analysis, hierarchical clustering analysis (HCA), principal component analysis (PCA), and orthogonal partial least squares discriminant analysis (PLS-DA). RESULTS: The fingerprints of 25 batches of Valeriana jatamansi samples were established. There were 36 common peaks in the fingerprints and nine common peaks were identified by reference substances. The fingerprints similarity of 18 batches of samples was over 0.9, and the samples were classified into two groups. Six components were the main markers that cause differences in different batches of samples, including valepotriate, acevaltrate, isochlorogenic acid A, and some others. CONCLUSION: HPLC fingerprint combined with recognition of chemical pattern can reflect the intrinsic quality of Valeriana jatamansi, which may provide reference for the quality control and evaluation of Valeriana jatamansi.

Antimicrobial activity of four Valeriana (Caprifoliaceae) species endemic to the Venezuelan Andes / Actividad antimicrobiana de cuatro especies de Valeriana (Caprifoliaceae) endémicas de los Andes venezolanos

Abstract Valeriana L. genus is represented in Venezuela by 16 species, 9 of these are endemic of Venezuelan Andes growing in high mountains at 2 800 masl. In this investigation, four species were analyzed in order to determine the main secondary metabolites and antimicrobial activity of extracts obtained from aerial parts of Valeriana parviflora, V. rosaliana, V. triplinervis and V. phylicoides. Alkaloids, flavonoids, tannins, sterols, triterpenoids and saponins were qualitatively observed in all methanolic extracts tested. The color intensity or a precipitate formation was used as analytical response to these tests. Antimicrobial activity was evaluated against Gram positive, Gram negative bacterial strains and yeast, using disc diffusion method. N-hexane extracts of V. triplinervis and V. rosaliana showed the highest efficiency against Staphylococcus aureus, exhibiting inhibition zones of 16 mm and 15 mm; MIC (Minimal Inhibition Concentration) values were observed at 116 mg/mL and 150 mg/mL, respectively. Dichloromethane and methanolic extracts of V. triplinervis and methanolic extract of V. rosalianashowed a rather moderate activity (MIC between 200 to 316 mg/ml) but a very weak antibacterial activity was observed in V. phylicoides and V. parviflora extracts (MIC > 420 mg/mL). None of the extracts assayed in this investigation showed any activity against Candida albicansand Candida krusei. Statistical analysis showed no significant differences on the different polarity extracts assayed with respect to antimicrobial activity against S. aureus (P > 0.10), however it was observed significant differences between the Valeriana species analyzed (P < 0.10) in relation to the minimal inhibitory concentration (MIC). Rev. Biol. Trop. 66(3): 1282-1289. Epub 2018 September 01.

Resumen El género Valeriana, está representado en Venezuela por 16 especies, 9 de las cuales son endémicas de Los Andes y crecen en las altas montañas a 2 800 msnm. En esta investigación cuatro especies fueron analizadas para determinar los principales metabolitos secundarios y la actividad antimicrobiana de los extractos obtenidos de las partes aéreas de Valeriana parviflora, V. rosaliana, V. triplinervis y V. phylicoides. Compuestos como alcaloides, flavonoides, taninos, estroles, triterpenos y saponinas fueron detectados cualitativamente en todos los extractos metanólicos ensayados. La intensidad del color o la formación de un precipitado se tomaron como respuesta positiva para estos análisis. Actividad antimicrobiana fue evaluada frente a bacterias Gram positivas, Gram negativas y levaduras, usando el método de difusión en discos. Los extractos en n-hexano de V. triplinervis y V. rosaliana mostraron la mayor eficiencia frente a Staphylococcus aureus, mostrando zonas de inhibición de 16 mm y 15 mm con valores de CIM (Concentración Inhibitoria Mínima) observados a 116 mg/mL y 150 mg/mL, respectivamente. Los extractos con diclorometano y metanol de V. triplinervis y metanol de V. rosaliana revelaron moderada actividad (CIM entre 200 y 316 mg/ml), mientras actividad muy leve se observó en los extractos de V. phylicoides y V. parviflora (CIM > 420 mg/mL). Ninguno de los extractos ensayados mostraron actividad frente a Candida albicans y Candida krusei. Los análisis estadísticos mostraron que no hay diferencia significativa entre los solventes de diferentes polaridades con relación a la actividad antimicrobiana frente a S. aureus (P > 0.10), sin embargo, sí se observó diferencia significativa (P < 0.10), entre las especies de Valeriana ensayadas con respecto a la concentración inhibitoria mínima (CIM).

Chemical constituents from ethyl acetate-soluble extraction of Valeriana jatamansi / 中国中药杂志

Application of a combination of various chromatographic techniques including column chromatography over silica gel, Sephadex LH-20, macroporous adsorbent resin, and reversed-phase HPLC, led to the isolation of 173 compounds including irdidoids, monoterpenes, sesquiterpenes, triterpenes, lignans, flavonoids, and simple aromatic derivatives from the ethyl acetate-soluble fraction of the whole plants of Valeriana jatamansi(Valerianaceae), and their structures were elucidated by spectroscopic methods including 1D, 2D NMR UV, IR, and MS techniques. Among them, 77 compounds were new. In previous reports, we have described the isolation, structure elucidation, and bioactivities of 68 new and 25 known compounds. As a consequence, we herein reported the isolation and structure elucidation of the remaining 9 new and 71 known compounds, the structure revision of valeriotriate A(8a), as well as cytotoxicity of some compounds.

Tricalcium phosphate solubilization and nitrogen fixation by newly isolated Aneurinibacillus aneurinilyticus CKMV1 from rhizosphere of Valeriana jatamansi and its growth promotional effect

Abstract Aneurinibacillus aneurinilyticus strain CKMV1 was isolated from rhizosphere of Valeriana jatamansi and possessed multiple plant growth promoting traits like production of phosphate solubilization (260 mg/L), nitrogen fixation (202.91 nmol ethylene mL-1 h-1), indole-3-acetic acid (IAA) (8.1 µg/mL), siderophores (61.60%), HCN (hydrogen cyanide) production and antifungal activity. We investigated the ability of isolate CKMV1 to solubilize insoluble P via mechanism of organic acid production. High-performance liquid chromatography (HPLC) study showed that isolate CKMV1 produced mainly gluconic (1.34%) and oxalic acids. However, genetic evidences for nitrogen fixation and phosphate solubilization by organic acid production have been reported first time for A. aneurinilyticus strain CKMV1. A unique combination of glucose dehydrogenase (gdh) gene and pyrroloquinoline quinone synthase (pqq) gene, a cofactor of gdh involved in phosphate solubilization has been elucidated. Nitrogenase (nif H) gene for nitrogen fixation was reported from A. aneurinilyticus. It was notable that isolate CKMV1 exhibited highest antifungal against Sclerotium rolfsii (93.58%) followed by Fusarium oxysporum (64.3%), Dematophora necatrix (52.71%), Rhizoctonia solani (91.58%), Alternaria sp. (71.08%) and Phytophthora sp. (71.37%). Remarkable increase was observed in seed germination (27.07%), shoot length (42.33%), root length (52.6%), shoot dry weight (62.01%) and root dry weight (45.7%) along with NPK (0.74, 0.36, 1.82%) content of tomato under net house condition. Isolate CKMV1 possessed traits related to plant growth promotion, therefore, could be a potential candidate for the development of biofertiliser or biocontrol agent and this is the first study to include the Aneurinibacillus as PGPR.

Study on HPLC fingerprint of Valeriana jatamansi / 中草药

Objective To study the fingerprint of Valeriana jatamansi by HPLC, which can be used for the evaluation of its quality control. Methods The Phenomenex Gemini C18 (250 mm × 4.6 mm, 5 μm) column was used with a mobile phase of methyl acetonitrile (A)-0.1% phosphoric acid (B) gradient elution, the flow rate was 1.0 mL/min, the column temperature was 25 ℃, and the detection wavelength was 254 nm. Above all these would be used for determining the fingerprint. Results There were 17 common peaks were found in the fingerprint of V. jatamansi, within six peaks were identified. The similarity degrees of 15 batches of samples were more than 0.89. Three principal components were abstractly represented 17 components and evalusted. Conclusion The established method is simple, fast, reliable, and can be used for evaluating the quality of V. jatamansi.

Biología de Valeriana pilosa R. &. P. (Valerianaceae): una especie en peligro de extinción de las altas montañas de Perú / Valeriana pilosa R. &. P. (Valerianaceae) biology: an endangered species in the high mountains of Peru

El estudio se realizó en un área de vegetación natural en Campo Alegre (3708 msnm), centro poblado de Huanico, distrito de Namora, Cajamarca (Perú), donde Valeriana pilosa R. & P. crece espontáneamente. Se describió la planta, la semilla, la regeneración natural, la fenología de las poblaciones, el área foliar y la asignación de la materia seca a los órganos de las matas adultas. Se realizaron pruebas de germinación y se evaluó el crecimiento de las plántulas. La planta vive en el pajonal, asociada, principalmente, a especies de Calamagrostis y Stipa. Se regenera mediante semilla, bajo la protección de las plantas acompañantes. La fenología de las poblaciones estuvo relacionada con la temperatura y la precipitación pluvial. El área foliar por mata fue de 925 cm2 y el índice de cosecha promedio de 35.8 por ciento. Mil semillas pesaron 0.2 g y tuvieron 43 por ciento de germinación. Las plántulas crecieron 5.6 mm mes-1.

The study was conducted in an area of natural vegetation in Campo Alegre (3708 m), Huanico, Namora district, Cajamarca (Perú), where Valeriana pilosa R. & P. (“valeriana”) grows spontaneously. Plant, seed, natural regeneration, phenology of populations, leaf area and dry matter allocation of the organs of adult bush were described. Germination tests were performed and the growth of seedlings was evaluated. The plant lives in the scrubland, mainly associated with species of Calamagrostis and Stipa. It is regenerated by seed, under the protection of companion plants. The phenology of populations was related to temperature and rainfall. The leaf area per plant was 925 cm2 and the average harvest index of 35.8 percent. Thousand seeds weighed 0.2 g and had 43 percent germination. Seedlings were grown 5.6 mm month-1.

Study on active constituents against Alzheimer's disease from Valeriana amurensis / 中国中药杂志

In this study, the chemical constituentsfrom Valeriana amurensis AD-effective fraction were investigated based on the effect of Valeriana amurensis on Alzheimer's disease (AD) in previous study. Valeriana amurensis was extracted with 75% ethanol and the obtained extract were extracted and subjected to AB-8 macroporous resin column to obtain the AD-effective fraction of Valeriana amurensis. 9 compounds (1-9) were isolated with silica gel, ODS column chromatography and preparative HPLC. The structures of these compounds were determined as 6-hydroxy-7-(hydroxymethyl)-4-methylenehexahydrocyclopenta[c]-pyran-1(3H)-one (1), suspensolide F (2), loganin(3), α-morroniside(4), β-morronisid (5), partinovalerosidate (6), zansiumloside A (7), (-)-angelicoidenol-2-O-β-D-glucopyranoside (8), citroside A (9). Compounds 6-9 were isolated from the valerian genus for the first time and further investigated the anti-AD effect of compounds 1-9 in vitro found that compound 2 and 6 protected the PC12 cells from injury significantly.

Study on neuroprotective active constituents from root and rhizome of Valeriana amurensis / 中草药

Objective: To screen the active constituents from the anti-AD active fraction from the roots and rhizomes of Valeriana amurensis and to elucidate the therapeutic basis for the neuroprotective effect of the roots and rhizomes in V. amurensis. Methods: The aective fraction of the roots and rhizomes in V. amurensis was separated with various chromatographic processes and the structures of the obtained compounds were identified by physicochemical analysis and various spectra data. The neuroprtective compounds on PC12 cells were screened by MTT assay. Results: Eleven compounds were isolated from the roots and rhizomes of V. amurensis, including five bisepoxy lignans of (+)-medioresinol-4,4'-di-O-β-D-glucopyranoside (1), (+)-syringaresinol-4,4'-di-O-β-D-glucopyranoside (2), prinsepiol-4-O-β-D-glucopyranoside (3), (+)-8,8'-dihydroxy-pinoresinol-4,4'-di-O-β-D-glucopyranoside (4), prinsepiol (5), and 6 iridoids of jatamanin A (6), 7-hydroxy-8-(hydroxymethyl)-4-methylenehexahydrocyclopenta[c] pyran-1(3H)-one (7), 4-hydroxymethyl-cyclopenta[c] pyran-7-carboxaldehyde (8), patriscabroside III (9), jatamanin E(10), and patrinoside (11). The Aβ1-42-induced PC12 cells injuries were alleviated by all the bisepoxy lignans with the concentration of 25, 12.5, and 5 μmol/L. Conclusion: Iridoids 6-10 are isolated from the roots and rhizomes of V. amurensis for the first time. Bisepoxy lignans are the therapeutic basis of neuroprotective effect in the roots and rhizomes of V. amurensis.

A novel iridoid ester from roots and rhizomes of Valeriana jatamansi / 中草药

Objective: To study the chemical constituents from the roots and rhizomes of Valeriana jatamansi in Valeriana Linn., Valerianaceae. Methods: The chemical constituents were separated and purified by silica gel, medium pressure column chromatography, and preparative HPLC. Their structures were determined by 1D, 2D NMR, HRMS, and IR spectroscopic analyse. Results: An iridoid ester was isolated from the dichloromethane extract from the roots and rhizomes of V. jatamansi, which was named as valerjatadoid C. Conclusion: Compound 1 is a new iridoid ester.