詳細検索結果
以下の条件での結果を表示する: 検索条件を変更
クエリ検索: %22%E5%A4%A9%E6%89%8D%E3%81%A6%E3%82%8C%E3%81%B3%E3%81%8F%E3%82%93YOU%22
5,116,065件中 1-20の結果を表示しています
  • Philippe Biane
    Publications of the Research Institute for Mathematical Sciences
    1995年 31 巻 1 号 63-79
    発行日: 1995年
    公開日: 2009/04/24
    ジャーナル フリー
  • 鹿野 美弘, 櫻井 徹朗, 小松 健一, 山田 浩之, 斉藤 謙一
    Chemical and Pharmaceutical Bulletin
    1990年 38 巻 4 号 1082-1083
    発行日: 1990/04/25
    公開日: 2008/03/31
    ジャーナル フリー
    Two new polyacetylene compounds (
    4
    E
    ,
    6
    E
    , 12
    E
    )-1-acetoxy-
    3
    -isovaleryloxytetradeca-
    4
    ,
    6
    , 12-trien-
    8
    , 10-diyn-14-ol (
    B
    ), and (
    4
    E
    ,
    6
    E
    , 12
    E
    )-1-acetoxy-
    3
    -(2-methylbutyryloxy)tetradeca-
    4
    ,
    6
    , 12-trien-
    8
    , 10-diyn-14-ol (
    C
    ) have been isolated along with (
    4
    E
    ,
    6
    E
    , 12
    E
    )-1-acetoxy-
    3
    -senecioyloxytetradeca-
    4
    ,
    6
    , 12-trien-
    8
    , 10-diyn-14-ol (A) from Atractylodes Rhizome (Karabyakujutu). The structures of these compounds were determined on the basis of their spectral data.
  • Takefumi Hattori, Hiromitsu Tsuzuki, Hiroe Amou, Kumio Yokoigawa, Masanori Abe, Akira Ohta
    Mycoscience
    2016年 57 巻 3 号 181-186
    発行日: 2016年
    公開日: 2023/03/07
    ジャーナル オープンアクセス

    A biosynthetic pathway for (

    E
    )-methyl cinnamate formation was evaluated in Tricholoma matsutake by tracer experiments using
    13C
    - and 2H-labeled precursors. One hundred percent selective
    13C
    incorporation was observed when L-[1,2,
    3
    ,
    4
    ,
    5
    ,
    6
    ,7,
    8
    ,
    9
    -
    13C9
    , 15/N]phenylalanine was converted to (
    E
    )-[1,2,
    3
    ,
    4
    ,
    5
    ,
    6
    ,7,
    8
    ,
    9
    -
    13C9
    ]cinnamate and (
    E
    )-[1,2,
    3
    ,
    4
    ,
    5
    ,
    6
    ,7,
    8
    ,
    9
    -
    13C9
    ]methyl cinnamate. Similarly, 100% selective
    13C
    incorporation was observed when (
    E
    )-[1,2,
    3
    ,
    4
    ,
    5
    ,
    6
    ,7,
    8
    ,
    9
    -
    13C9
    ]cinnamate was converted to (
    E
    )-[1,2,
    3
    ,
    4
    ,
    5
    ,
    6
    ,7,
    8
    ,
    9
    -
    13C9
    ]methyl cinnamate. In contrast, the 2H incorporation selectivities were
    82
    .1% and
    81
    .
    4
    % when L-[2,
    3
    ,
    4
    ,
    5
    ,
    6
    ,7,7,
    8
    -
    2H8
    ]phenylalanine was converted to (
    E
    )-[2,
    3
    ,
    4
    ,
    5
    ,
    6
    ,7,
    8
    -2H7]cinnamate and (
    E
    )-[2,
    3
    ,
    4
    ,
    5
    ,
    6
    ,7,
    8
    -2H7]methyl cinnamate, respectively. Thus, T. matsutake synthesizes (
    E
    )-methyl cinnamate from L-phenylalanine via (
    E
    )-cinnamate. (
    E
    )-cinnamate was likely formed through two pathways: one was major and the other was a minor.

  • 橋口 英俊
    日本医科大学雑誌
    1983年 50 巻 4 号 563-585
    発行日: 1983/08/15
    公開日: 2009/12/04
    ジャーナル フリー
    Thirty-six patients (19 males, 17 females: atypical schizophrenia;
    3
    , typical schizophrenia;
    9
    , depression; 11, neurosis and other psychiatric disorders;
    8
    ) were operated on according to orbitoventromedial undercutting by Hirose. In all cases, the Rorschach test was carried out and daily behaviors were studied. Thirty-one scales of the test were subjected to multivariate analysis whereas the behaviors were evaluated according to the following criteria, i.
    e
    ., A: recovered or symptom free,
    B
    : markedly improved,
    C
    : moderately improved,
    D
    : slightly improved and
    E
    : not improved. The following results were obtained.
    1) The evaluation of behaviors is as follows. A: 12 cases,
    B
    :
    9
    ,
    C
    :
    9
    ,
    D
    :
    6
    ,
    E
    : none.
    2) It was found that scores of
    F
    +106% and R+106% scales were significantly higher after the operation than before; that correlation coefficients between the scores before and after the operation were considerably high.
    3
    ) Factor analysis followed by varimax rotation was carried out. Six factors were extracted, i.
    e
    ., (
    F
    1) sensitivity to emotional stimuli, (
    F
    2) ego-strength, (
    F
    3
    ) obsessional rigidity, (
    F
    4
    ) reaction time, (
    F
    5
    ) anxiety and tension and (
    F
    6
    ) empathy. It was revealed that
    F
    2 was high in atypical schizophrenia, depression and neurosis, and that
    F
    2 and
    F
    6
    were significantly different in terms of the factor scores among the four groups A,
    B
    ,
    C
    and
    D
    ;
    F
    2 was highest in A, and lowest in
    D
    regardless of whether it was before or after the operation.
    F
    6
    showed high scores in both A and
    C
    , and low in
    D
    .
    4
    ) Multiple discriminant analysis was applied to the data of the Rorschach test before the operation, by classifying 36 subjects into the four groups A,
    B
    ,
    C
    and
    D
    . As a result, high rates of correct diagnosis were obtained, i.
    e
    ., 100% for A, 78% for
    B
    , 56% for
    C
    and 100% for
    D
    . When the groups
    C
    and
    D
    were combined into one group (
    C
    +
    D
    ) the highest percentage (100%) was seen in A, followed by
    B
    (
    89
    %) and
    C
    +
    D
    group (87%). When the groups A and
    B
    were combined into one group (A+
    B
    ), the percentages of correct diagnosis were
    81
    % for A+
    B
    , and
    93
    % for
    C
    +
    D
    .
    In conclusion, it can be said that scales of the Rorschach test have been proved to be valid for predicting mental and physical states after the orbito-ventromedial undercutting.
  • H. K. Mahanty
    CYTOLOGIA
    1970年 35 巻 1 号 13-49
    発行日: 1970/03/25
    公開日: 2009/03/19
    ジャーナル フリー
    1. The chromosome numbers of 64 species have been studied on which 56 are investigated for the first time.
    2. Morphological, anatomical and cytological findings on the Musaceae in the broad sense are considered from a phylogenetical standpoint and three distinct groups:
    a) Musa-Ensete,
    b
    ) Ravenala-Strelitzia-Phenakospermum and
    c
    ) Holiconia are recognised as suggested by some authors. For these groups sub-familial status is proposed.
    3
    . Lowiaceae have been studied for the first time cytologically and their chromosome morphology, distinct from that of any other group of Zingiberales, confirms their claim to familial status.
    4
    . Consideration of the conflicting theories proposed to account for the higher chromosome number in genera like Globba, Alpinia, and Phaemeria, etc. leads to rejection of Chakravorti's hypothesis of wholesale fragmentation of chromosomes and the acceptance of the opposed view of Raghavan and Venkatasubban and others.
    5
    . Holttum's transference of the genus Zingiber to the tribe Hedychieae has been given cytological support on the following points:
    a) the basic number in the genus Zingiber correlates with that of Kaempferia.
    b
    ) the new tribe Alpinieae (which is infact Zingibereae without Zingiber) have consistently 48 chromosomes in their somatic complements.
    6
    . It is suggested that the African representatives of Kaempferia should be given the status of genus; Cienkowskya on the following points:
    a) the difference in floral morphology
    b
    ) geographical separateness and
    c
    ) the difference in the number and morphology of the chromosomes. By comparing the present and past findings, various lines of evolution of the chromosome complements within each group are discussed.
    7. The basic number 11 is considered to be probably the original one for the Zingiberales as a whole, being present in Ravenala which is the most primitive member in the order. From this secondary basic numbers have arisen through evolution.
  • W. TANG, G. MESRI, I. HALIM
    土質工学会論文報告集
    1992年 32 巻 4 号 107-116
    発行日: 1992/12/15
    公開日: 2008/02/29
    ジャーナル フリー
    A method for analyzing the uncertainties involving the use of empirical relationships in design is developed. It is applied to evaluate the reliability of the relationship su(mobilized)=
    0.22σ'p
    (measured), whereby the pertinent uncertainties are analyzed using extensive laboratory and field observed data. On the average, the relationship su(mobilized)=
    0.22σ'p
    (measured) is unbiased and the error implicit in the relationship is about 15%. When cone values are used to infer s'p, additional uncertainties on the mobilized undrained strength will incur resulting mainly from the calibration uncertainty between σ'p and the cone values. Alternatively, vane tests may be performed to infer the mobilized strength using Bjerrum correction factor. Results show that uncertainty level associated with using the vane tests is smaller than that using the cone values, provided that similar scatter is observed between measured vane and cone values at a given site. However, prediction of the mobilized strength is even more accurate if direct measurements can be made on the preconsolidation pressure. The proposed probabilistic method also assesses the benefit of additional tests besides comparing the accuracy of using various soil parameters for predicting mobilized undrained strength. Such information is essential for planning cost-effective site characterization program.
  • EMIL BUCHTA, Dieter Kiessling
    International Symposium on the Chemistry of Natural Products
    1964年 1964 巻 E-8-3
    発行日: 1964/04/12
    公開日: 2017/08/18
    会議録・要旨集 フリー
  • George W. Lee
    燃料協会誌
    1973年 52 巻 3 号 171-177
    発行日: 1973/03/20
    公開日: 2010/06/28
    ジャーナル フリー
  • Cbesseredes HORTS
    Journal of Human Ergology
    1982年 11 巻 Supplement 号 429-440
    発行日: 1982/12/15
    公開日: 2011/02/23
    ジャーナル フリー
  • 膵臓
    2007年 22 巻 1 号 e399-e401
    発行日: 2007年
    公開日: 2007/03/27
    ジャーナル フリー
  • 榎 明潔, 八木 則男, 矢田部 龍一, 一本 英三郎
    土質工学会論文報告集
    1991年 31 巻 2 号 1-13
    発行日: 1991/06/15
    公開日: 2008/02/29
    ジャーナル フリー
    It has been shown after mathematical and mechanical investigation that Limit Equilibrium Method (LEM) can be considered as a method to obtain the necessary condition of Slip Line Method (SLM), and that the solution can be obtained under the condition that Fs=1 and ∂Fs/∂θ=O, where Fs is the safety factor and θ is the inclination of the plane on which the safety factor is defined. Next, the generalized LEM (GLEM) is proposed, dealing with the following points : (1) Triangular or quadrangular blocks can be treated; (2) Safety factors are defined also on interblock planes; and (
    3
    ) All types of plastic problems, slope stability, bearing capacity, and earth pressure are identically formulated. Two situations regarding treatment of the moment equilibrium condition are discussed. GLEM is applied to well-known problems. The results agree well with those obtained by theoretical methods. GLEM can be used to obtain the distribution of earth pressure or bearing capacity. GLEM, Iike ordinary LEM, is very effective for the practical problems, but GLEM is more theoretical and it can result in more accurate solutions.
  • CHING-CHUAN HUANG
    SOILS AND FOUNDATIONS
    2009年 49 巻 2 号 249-258
    発行日: 2009年
    公開日: 2011/01/27
    ジャーナル フリー
    The correction factor (ηie) for the ultimate bearing capacity of a footing placed adjacent to a slope, taking into account the combined effect of horizontal and vertical seismic loads, represented by horizontal and vertical seismic coefficients, kh and kv, respectively, was derived using a modified Janbu's slice method. The influence of slope angles ‘α’ on the values of ‘ηie’ are studied here. It was found that the values of ηie can be expressed as an exponential function of ‘kh/(1-kv)’ and ‘α’, with a measurable interdependency between ‘α’ and ‘ηie’. The influence of ‘α’ on the value of ‘ηie’ increases as the input value of ‘kh/(1-kv)’ increases. Equations derived based on the analytical results are proposed to account for this effect. Based on the analyses of 11 near-fault seismographers obtained in the 1999 Chi-Chi earthquake in Taiwan, a ratio between the vertical and the horizontal seismic coefficients, λ, of between ±0.25 is suggested for including the combined effect of vertical and horizontal seismic forces in evaluating the seismic bearing capacity of footings located in near-fault areas.
  • CHING-CHUAN HUANG, WEN-WEI KANG
    SOILS AND FOUNDATIONS
    2008年 48 巻 5 号 641-651
    発行日: 2008年
    公開日: 2011/01/27
    ジャーナル フリー
    At present, analytical or empirical formula for seismic bearing capacity of footings adjacent to slopes is not available. This study uses a pseudo-static-based approach in conjunction with rigorous Janbu's slice method to derive analytical values of seismic bearing capacity factors (Nγ) and correction factors for the effects of inertia of soil mass and load inclinations for a rigid footing adjacent to cohesionless slopes. It is shown that both the bearing capacity factors (Nγ) and the correction factors for the seismic bearing capacity of footings placed on level ground derived herein are comparable with those reported in the literature. Empirical equations regarding the effects of slope angles and load inclinations, expressed using generalized forms of those proposed in the literature, are also derived. It is also found that the empirical equations derived in the present study provide values of correction factors in good agreements with the analytical ones, indicating the validity of using these empirical equations for assessing the bearing capacity of rigid footings situated on the slope subjected to pseudo-static seismic loading.
  • 松本 樹典, 関口 秀雄, 吉田 寛, 北 勝利
    土質工学会論文報告集
    1992年 32 巻 2 号 67-82
    発行日: 1992/06/15
    公開日: 2008/02/29
    ジャーナル フリー
    This paper is concerned with dynamics of the standard penetration test (SPT). The usefulness of mounting strain gages at two different stations along a driven rod is described, together with a workable procedure of analysis. The analysis procedure makes use of the traveling time between the two gage points and enables one to identify the particle velocity, the displacement and the stress at any station of the rod, as well as the energy actually transmitted from a hammer to the rod. Particular attention is called for the consequence of inevitable, small errors in strain data upon such identifications. A pertinent procedure of error-correction is proposed and its validity is substantiated against the performance of well instrumented SPTs performed by the authors.
  • Suguru TAKATSUTO, Kiyomi KOBAYASHI, Tsuyoshi WATANABE, Hiroki KURIYAMA, Tokuo FURUSE
    Agricultural and Biological Chemistry
    1988年 52 巻 12 号 3217-3218
    発行日: 1988年
    公開日: 2006/04/05
    ジャーナル フリー
  • 山口 昭彦
    日本中東学会年報
    1994年 9 巻 37-65
    発行日: 1994/03/31
    公開日: 2018/03/30
    ジャーナル フリー
    L'entree en Iran des armees britannique et sovietique s'est produite en aout 1941. Elle ebranla du coup le regime de la dynastie pahlavi qui etait au pouvoir depuis 16 ans, et mena le pays vers l'instabilite politique et le chaos social. La defaite de l'arme gouvernementale, qui etait le pivot du regime de Reza Shah, reduisit considerablement le controle du gouvernement central dans le pays. Cette situation politico-sociale confuse permit le developpement de differents mouvements politiques en Iran.
    C'est
    ainsi que le 16 aout 1942 le parti clandestin Komeley Jiyanewey Kurdistan (J-K) est ne a Mehabad, une ville au nord-ouest de l' Iran. Des sa formation, ce parti a su etendre sa sphere
    d'activite
    et, en une courte periode de temps, a fini par mettre sous son influence la ville et ses alentours. A la fin de la Seconde Guerre mondiale, en ete 1945, le J-K etait devenu une organisation representant le mouvement nationaliste kurde en Iran.
    C'est
    a ce moment-la qu'un autre parti politique, le Hizbi Dimokratiki Kurdistan (HDK), fonde par Qazi Mihemed a Mehabad aussi, devait remplacer le J-K. Des le
    22
    janvier 1946, le HDK proclama l'instauration de la≪Republique de Kurdistan≫. Cependant, les troupes sovietiques qui avaient pris sous leur protection la Republique evacuerent les terres iraniennes, en mai 1946. Six mois plus tard, sous la pression militaire du gouvernement central iranien, la republique s'ecroula. Deux theories tentent
    d'expliquer
    le passage du J-K au HDK. William Eagleton Jr., par exemple, affirme dans The Kurdish Republic of 1946 que le HDK a ete cree sur le conseil des autorites sovietiques. L'ex-secretaire general du Parti Democratique du Kurdistan
    d'Iran
    , 'Ebd el-Rehman Qasimlu maintient par contre que Qazi Mihemed a etabli le nouveau parti de sa propre initiative, eu regard a la situation politique de cette epoque-la. Il considere que la passage du J-K au HDK comme etant l'evolution
    d'un
    parti nationaliste clandestin en un parti democratique. En analysant ces deux theories et en se basant sur les autobiographies des personages qui se sont engages dans cet evenement, cette etude tentera
    d'examiner
    le principe directeur et les activites du J-K et de mieux comprendre les raisons pour lesquelles le J-K devait etre remplace par le HDK. La conclusion generale portera sur les differents objectifs politiques du J-K et du HDK. Le J-K visait l'elevation du niveau culturel du peuple tout en luttant contre le tribalisme, qui etait, selon lui, le probleme majeur de≪la nation kurde≫, et cela en ecartant toute idee de revolte militaire. Le J-K a aussi exclu de son cadre les elites sociales telles que les leaders des tribus et dirigeants religieux de peur qu'ils n'excercent une influence sur les membres du parti. L'automne de 1944 fut le debut
    d'une
    nouvelle ere pour le mouvement kurde. Alors que l'espoir de l'autodetermination augmentait parmi le peuple a mesure que s'approchait la fin de la guerre, la necessite de la force militaire a commence a se faire sentir dans le J-K.
    C'est
    pour cela que s'est produite au sein du parti une tendance a compter sur l'aide militaire des sovietiques et a recourir au leadership de Qazi Mihemed, qui avait une certaine influence meme sur les leaders tribaux. Mais cette tendance etait essentiellement incompatible avec la ligne fondamentale du J-K et, graduellement, a prive ce parti de sa raison
    d'etre
    . Ainsi, le HDK se substitua au J-K en tant que≪parti democratique≫visant a rallier
    d'abord
    les elites sociales sous sa banniere, en s'appuyant sur l'autorite personnelle de Qazi Mihemed.
  • Keishi Hata, Fuyuki Sugawara, Naganori Ohisa, Saori Takahashi, Kazuyuki Hori
    Biological and Pharmaceutical Bulletin
    2002年 25 巻 8 号 1040-1044
    発行日: 2002年
    公開日: 2002/08/01
    ジャーナル フリー
    We screened the differentiation-inducing activities of 39 mushroom extracts from Akita prefecture, Japan, on the mouse osteoblastic cell line, MC
    3
    T
    3
    -
    E
    1. Sixteen phosphate buffered saline (PBS),
    8
    boiled PBS, 14 ethanol and 12 methanol extracts induced alkaline phosphatase (ALP) activities, an indicator of MC
    3
    T
    3
    -
    E
    1 cell differentiation. The enzyme activities were markedly induced by extracts of Tricholoma auratum, and we isolated the active compound from methanol extracts of this mushroom. Physical data for the isolated active compound were identical to those for (
    22E
    ,24R)-ergosta-7,
    22
    -diene-
    ,
    ,
    -triol (1). 1 induced ALP activities of MC
    3
    T
    3
    -
    E
    1 cells and promoted cell proliferation. To investigate the relationships between the chemical structure and differentiation-inducing activity of the compound, ALP-inducing activities of MC
    3
    T
    3
    -
    E
    1 cells by 1, ergosterol (2), ergocalciferol (
    3
    ), cholesta-
    ,
    ,
    -triol (
    4
    ), 7-dehydrocholesterol (
    5
    ) and cholecalciferol (
    6
    ) were tested. The enzyme activities of MC
    3
    T
    3
    -
    E
    1 cells were increased
    3
    .0-fold by 10 μM 1 and 2.
    4
    -fold by 10 μM
    4
    . However, 2,
    3
    ,
    5
    and
    6
    did not induce MC
    3
    T
    3
    -
    E
    1 cell ALP activity at 0.1—10 μM. These results suggested that the OH groups at
    C
    -
    5
    and/or
    C
    -
    6
    of 1 and
    4
    played an important role in their differentiation-inducing activities on MC
    3
    T
    3
    -
    E
    1 cells. Furthermore, 1 suppressed induction of MC
    3
    T
    3
    -
    E
    1 cell apoptosis by serum starvation.
  • 澤田 知之, 能町 純雄 /, WAI-FAH CHEN
    土質工学会論文報告集
    1994年 34 巻 1 号 11-17
    発行日: 1994/03/15
    公開日: 2008/02/29
    ジャーナル フリー
    The pseudo-static analysis has been used in engineering practice to simplify the computation of the upper limit of a slope under seismic load. In this paper, the upper bound technique of limit analysis of perfect plasticity is used to determine the bearing capacity of a foundation near a down-hill slope. In this analysis (Chen et al., 1969; Chen, 1975), a logarithmic spiral rapture (Abdul-Baki et al., 1970; Sawada et al., 1984) is assumed to start at an edge of the loaded area far from the slope. A landslide is assumed to be of rigid body type with the inertia force acted at its center of gravity. The collapse state is reached when the rate of kinematic energy of the landslide together with the load is equal to the rate of dissipation of internal energy along the sliding surface. This energy balance leads to the equation of ultimate load with several parameters. The optimized numerical rcsults with respect to these parameters are compared with those by Kotter's method (Yamaguchi, 1959) and those obtained by the slice method.
  • 布施川 雄一, 多田 博己, 小熊 利明, 椎名 豊, 玉地 寛光, 半田 俊之介
    動脈硬化
    1996年 23 巻 9 号 545-551
    発行日: 1996/04/10
    公開日: 2011/09/21
    ジャーナル フリー
    The association between apolipoprotein
    E
    (Apo-
    E
    ) polymorphism and the response of plasma cholesterol to dietary therapy (cholesterol intake of less than 300mg/day) was investigated for about
    8
    weeks in 208 nonfamilial hypercholesterolemia patients (
    E
    3
    /
    3
    161,
    E
    4
    /
    3
    47). The baseline lipoprotein concentration and the intake of energy and lipids were not significantly different between subjects with
    E
    3
    /
    3
    and those with
    E
    4
    /
    3
    phenotypes. After the dietary therapy plasma total cholesterol and low density lipoprotein cholesterol were significantly decreased in both phenotype groups (p<0.05). The patients with
    E
    4
    /
    3
    had significantly smaller reductions of LDL-
    C
    than the patients with
    E
    3
    /
    3
    . The changes of LDL-
    C
    showed a significant difference between the patients with
    E
    3
    /
    3
    and
    E
    4
    /
    3
    by the Kruskal Wallis test (p=0.041). The presence of
    E
    4
    /
    3
    predicted the degree of cholesterol reduction following dietary therapy.
  • Daria Kurguzova, Svetlana Serebrova, Alexey Prokofiev, Ludmila Krasnykh, Galina Vasilenko, Marina Zhuravleva, Elena Smolyarchuk, Anton Barkov
    日本薬理学会年会要旨集
    2018年 WCP2018 巻 WCP2018_PO3-5-27
    発行日: 2018年
    公開日: 2020/09/10
    会議録・要旨集 オープンアクセス

    Background

    The differences in conditions of enteric-coated acid-labile drug release and absorption between healthy subjects in bioequivalence studies and gastrointestinal patients in clinical practice can lead to significant differences in gastric stability of original PPIs and generics. Thus, pathologic duodenogastric reflux (PDGR) and the pH increasing within PPIs administration still remain unaccounted for.

    Methods

    Two-stage modified comparative dissolution testing of original omeprazole (OO) and four generics (G1;2;

    3
    ;
    4
    ) was performed. At first, we moved drugs from solution with pH 1.2 (1.2±0.05) to pH 7.0 (7.0±0.05) and measure concentration of omeprazole in solution by high-performance liquid chromatography. According to our self-developed formula, pH 7 exposure time of resistance to PDGR for omeprazole is
    4
    minutes, i.
    e
    . the active substance should not be released within
    4
    minutes at pH 7. The exposure at the second stage was conducted with pH
    4
    (
    4
    .0±0.05), that imitated gastric pH after PPI administration. And then we also moved drugs to pH 7 with the subsequent measurement of omeprazole concentration.

    Results

    Omeprazole concentrations after

    4
    , 10, 15, 20, 30, 45, 60 minutes in pH 7 solution at the first stage were different for OO and generics. For OO, these values were
    4
    ,7±0,7%; 41,
    4
    ±
    3
    ,0%; 62,
    8
    ±
    4
    ,0%; 79,
    5
    ±2,
    9
    %; 83,
    5
    ±2,
    9
    %;
    81
    ,
    6
    ±2,
    9
    %; 80,
    6
    ±
    4
    ,
    4
    %; for Generic1 - 0; 49,
    3
    ±
    9
    ,
    9
    %; 88,
    8
    ±2,
    8
    %; 90,
    4
    ±
    3
    ,7%; 88, 2±2,2%; 87,
    3
    ±2,0%; 85,
    9
    ±1,1%; for Generic2 - 0; 30,
    6
    ±
    6
    ,
    3
    %; 66,7±
    8
    ,2%; 76,
    4
    ±7,
    4
    %;
    82
    ,
    8
    ±
    5
    ,
    3
    %; 86,0±
    3
    ,7%; 84,
    6
    ±
    3
    ,
    3
    %: for Generic
    3
    - 80,
    8
    ±
    3
    ,
    6
    %; 83,
    5
    ±1,
    9
    %; 83,
    8
    ±
    3
    ,2%; 83,
    3
    ±2,7%;
    81
    ,
    9
    ±2,1%;
    82
    ,1±2,0%;
    82
    ,0±2,
    4
    %; for Generic
    4
    -
    82
    ,
    5
    ±1,7%; 84,
    4
    ±0,
    8
    %; 84,2±1,2%;
    82
    ,
    9
    ±0,
    9
    %;
    82
    ,
    9
    ±0,
    9
    %;
    82
    ,
    9
    ±0,
    9
    %;
    82
    ,
    8
    ±1,1%, respectively.

    An analysis of the omeprazole concentration in pH 7 solution at the second stage revealed the following parameters after the same time: for OO -

    4
    ,
    4
    ±0,
    6
    %; 40,
    5
    ±
    3
    ,0%; 62,
    8
    ±2,0%; 80,0±
    3
    ,1%; 85,
    4
    ±2,
    9
    %;
    82
    ,
    8
    ±
    3
    ,
    4
    %; 80,
    9
    ±
    3
    ,
    5
    %; for Generic1 - 0; 67,0±7,
    8
    %;
    89
    ,7±2,
    3
    %; 91,
    9
    ±
    4
    ,
    3
    %;
    89
    ,1±1,
    6
    %; 88,
    3
    ±1,
    4
    %; 87,
    8
    ±1,2%; for Generic2 - 0; 42,2±
    5
    ,
    6
    %; 75,1±7,
    3
    %;
    81
    ,0±
    6
    ,0%; 88,
    4
    ±
    3
    ,2%; 88,
    6
    ±1,
    3
    %; 87,
    9
    ±1,0%; for Generic
    4
    - 85,
    5
    ±0,
    5
    %; 85,
    6
    ±0,
    5
    %; 84,7±0,
    9
    %;
    82
    ,7±
    3
    ,0%; 84,
    4
    ±0,
    3
    %; 84,
    4
    ±0,
    3
    %; 84,
    3
    ±0,
    4
    %, respectively. Generic
    3
    release and degradation were completely realized at pH
    4
    .

    Conclusion

    Decreased gastric stability of Generic

    3
    and Generic
    4
    makes PDGR and inhibited gastric acid secretion due to PPIs administration the potential causes of decreased enteric-coated acid-labile drugs stability.

feedback
Top