Study on suitable areas of Lamiophlomis rotata in Sichuan province based on 3S technology / 中草药

Objective: Looking for the suitable areas of Lamiophlomis rotata based on 3S technology in Sichuan province to provide the basis for reasonable exploitation and protection of the L. rotata resource. Methods: By the ways of field researching and reviewing the related literature on L. rotata, to confirm its habitat characteristics. RS and GIS software was used to extract the environment factors such as climate, soil, topographic features, and community of L. rotata. The spatial overlay analysis on the various environmental factors were carried out to determine the distribution of L. rotata in Sichuan province. The area and combining with GPS was calculated to verify in field. Results: The result indicated that the suitable areas of L. rotata found by using 3S technology were generally consistent with the actual distribution of L. rotata. The suitable areas of L. rotata in Sichuan province were mainly distributed in 20 counties such as Aba country and Litang country. The total area of the suitable areas is about 135 200 hm2, accounting for 0.17% of the district area. Conclusion: Planting and protecting L. rotata in the suitable area will be benefit to the reasonable exploitation and protection of the L. rotata resource; This research method has the characteristics of scientificity and accuracy, which can be extended to other suitable area research of Chinese herbal medicine.

Chemical constituents from Lamiophlomis rotata / 中成药

AIM To study the chemical constituents from Lamiophlomis rotata (Benth.) Kudo.METHODS The 50％ ethanol extract from L.rotata was isolated and purified by silica,ODS and Sephadex LH-20,then the structures of obtained compounds were identified by physicochemical properties and spectral data.RESULTS Ten compounds were isolated and identified as decaffeoylacteoside (1),markhamioside A (2),gentioside (3),6-O-acetylshanzhiside methyl ester (4),phloyoside Ⅰ (5),7,8-dehydropenstemoside (6),phlorigidoside C (7),β-daucosteol (8),caffeic acid (9),n-hexadecanoic acid (10).CONCLUSION Compounds 1-3 are isolated from this plant for the first time.

Fragmentation pathways of five characteristic diterpenoid compounds in Isodon coetsa / 中草药

Objective To study the fragmentation pathways of five 7,20-cyclo-ent-kaurane diterpenoid compounds (rabdocoetsin B, megathyrin B, rabdocoetsin A, enanderianin N, and megathyrin A) in Isodon coetsa. Methods The samples were analyzed by ultra-high performance liquid chromatography-tandem quadrupole time-of-flight mass spectrometry (UHPLC-Q-TOF-MS2). According to the fragment in MS2 of five compounds, the possible fragmentation pathways of these diterpenoid compounds were inducted. Results In negative mode, the typical fragmentation pathways of these compounds in high-quality areas were mainly loss of substituents on C-1, C-7, and the oxygen bridge on C-20. The fragmentation pathways were different as a result of the difference of the substituents on C-1. The fragment, which in medium and low quality areas, suggested that fracture order of these compounds were A ring to B and then to C ring. Conclusion The study on fragmentation pathways contributed to the structural identification of 7,20-cyclo-ent-kaurane diterpenoid compounds.

A new diterpenoid from Isodon nervosus / 中草药

Objective: To study the chemical constituents from the stems and leaves of Isodon nervosus. Methods: The chemical constituent was isolated and purified by chromatographic methods and structurally identified by physicochemical characteristics and spectral data. Results: One new compound was isolated from 95% ethanol extract of I. nervosus, the structure was identified as 15α,20β/α-dihydroxy-6β-methoxy-6,7-seco-6,20-epoxy-1α,7-olide-ent-kaur-16-ene. Conclusion: A new diterpenoid was identified and named as rabdonervosin K.

Chemical constituents from underground parts of Isodon sculponeatus and their bioactivities / 中草药

Objective: To study the chemical constituents from the underground parts from Isodon sculponeatus and their bioactivities. Methods: The compounds were isolated with 70% acetone by chromatography with silica gel, RP-18, and Sephadex LH-20 columns. The obtained parts were identified by means of spectroscopic methods. The cytotoxic activities of the samples including 70% acetone extract, ethyl acetate (EtOAc) fraction, and butanol fraction were evaluated by MTT method. Results: From the EtOAc fraction in the underground parts of I. sculponeata, fourteen compounds were isolated and identified as macrophynin E (1), 19-hydroxyferruginol (2), 2α, 3α, 24-trihydroxyursa-12, 20(30)-dien-28-oic acid (3), hyptadienic acid (4), stigmast-4-en-6β-ol-3-one (5), stigmastane-3β, 6α-diol (6), coniferyl aldehyde (7), 1, 2-benzenedicarboxylic acid bis (2-methylpropyl) ester (8), bis (2-ethylhexyl) phthalate (9), n-hexadecanioc acid (10), 5α, 8α-ergosta-6, 22E-dien-3β-ol (11), daucosterol (12), β-sitosterol (13), and ursolic acid (14). Results The bioassays indicated that both the 70% acetone extract and EtOAc fraction displayed the moderate cytotoxicities against the liver cancer cell line SMMC-7721. Conclusion: All the compounds are isolated from the underground parts of I. sculponeata for the first time while compounds 1-10 are firstly isolated from this plant, and compounds 2, 3, 5, 6, 8, and 9 are isolated from the plants of Isodon (Hara.) for the first time.

Extraction and purification technology for different extracts from Lamiophlomis rotata in industrialization / 中草药

Objective: The macroporous adsorptive resin chromatographic column combining with polyamide chromatographic column was used to separate the flavonoides, phenylethanoidglycosides, iridoid glycosides, and high polarity ingredients (such as alkaloid salts and sugars) in industrialization. Methods: Water extract from Lamiophlomis rotata (WELR) was separated and enriched by series and parallel method of polyamide and macroporous adsorptive resins and CCPP serial laminar analysis, and was ultrafiltrated by LM-125 ultrafiltration apparatus, then was dried under the reduced pressure by JYT-50 LN multipurpose kinesis back flow extract concentration subassembly. WELR, 70% ethanol solution eluate I (70% ethanol solution eluted polyamide column), 70% ethanol solution eluate II (70% ethanol solution eluting macroporous resin column), and ultrafiltration matter. The total flavonoids and total phenylethanoid glycosides were determined by aluminum nitrate-sodium nitrite UV spectrophotometry. The total iridoid glycosides were determined by the first derivative spectrophotometry. Shanzhiside methylester and 8-O-acetyl shanzhiside methylester were determined and the changes of total iridoid glycosides ingredients were investigated in the different elution requirement by HPLC. Results: Ethanol (70%) was used as dissolvent. Using the "introduction from superior surface" sample introduction mode and "introduction from superior surface" eluting mode in polyamide chromatographic column, the "introduction from inferior surface" sample introduction mode and "introduction from superior surface" eluting mode in the macroporous adsorptive resin chromatographic column, yields of 70% ethanol solution eluate I, 70% ethanol solution eluate II, and ultrafiltration matter were 2.43%, 20.80%, and 82.60%, respectively. Conclusion: This production technology may transform the experimental achievement to industrial production successfully.

'Medical Knowledge' and 'Tradition' of Colonial Korea: Focused on Kudo's "Gynecology"-based Knowledge / 의사학

This article attempts to illuminate the ways in which Kudo's medical knowledge based on 'gynecological science' constructed the cultural 'traditions' of colonial Korea. Kudo appears to have been quite an influential figure in colonial Korea in that his writings on the relationship between women's crime, gynecological science and the Choson society granted a significant amount of intellectual authority. Here, I examine Kudo's position within colonial Korea as a producer and propagator of medical knowledge, and then see how women's bodies were understood according to his gynecological knowledge. It also traces the ways in which Kudo's gynecological knowledge represents Choson society and in turn invents the 'traditions' of Chosn. Kudo's knowledge of "gynecology" which had been formed while it traveled the states such as Japan, Germany and France served as an important reference for his representation of colonial Korean society. Kudo was a proponent of biological evolution, particularly the rules of 'atavism' put forth by the criminal anthropologist Cesare Lombroso, and argued that an unique social environment caused 'alteration of sexual urges' and primitive cruelty in Choson women. According to Kudo, The social environment was none other than the practice of 'early marriage,' which went against the physiology of women. To Kudo, 'early marriage' was an old 'tradition' of Choson and the cause of heinous crimes, as well as an unmistakable indicator of both the primitiveness and savageness of Chosn. While Lombroso considered personal factors such as stress as the cause of women's crimes, Kudo saw Choson women's crimes as a national characteristic. Moreover, he compared the occurrence rate of husband murders by provinces, based on which he categorized the northern population of Choson as barbaric Manchurian and the southern population as the superior Japanese, a combination of racism and scientific knowledge. Kudo's writings provide an insight into the appropriation of Western medical theories and criminal anthropological knowledge by a non-Western colony as well as the ambivalence and contradictions underlying Japanese empire as in the use of concepts like 'difference' and 'unity.' According to today's standards, Kudo's physiological arguments can hardly avoid being called pseudo science, which confirms that the power and authority of science standing on 'objectivity' and 'universality' are actually dependent on social contexts that are constantly being readjusted. In the end, the cultural 'traditions' of a nation/state often taken for granted are social constructions born out of transnational crossing points of knowledges, and on the basis of these constructs are the concepts of differences between nations/states. And one of the core references for these differences in colonial Korea was Western science/medical knowledge.

Adenomas aserrados: otro precursor de carcinoma de colon / Serrated adenoma: another precursor of colon cancer

En este estudio se describen 12 pacientes a quienes se le realizó Colonoscopia en el período de un año entre marzo 2009 y mayo 2010 (10/83,33% mujeres, 2/16,67% hombres) encontrándose lesiones planas, sésiles, sobre pliegues en colon derecho, patrón de Kudo I – II (criptas elongadas horizontalmente). La aplicación de la técnica de cromoscopia electrónica combinada con magnificación (FICE) constituye un área prometedora en la descripción de cambios patológicos mínimos de la mucosa y microvasculares. Permite incrementar la correlación entre las imágenes endoscópicas y los resultados histopatológicos. Los adenomas aserrados pueden constituir lesiones precursoras de carcinoma colorrectal con diferente secuencia a la clásica secuencia adenoma-carcinoma. Los estudios morfológicos y moleculares están identificando vías evolutivas relacionadas a metilación del ADN, mutación del BRAF e inestabilidad de microsatélites.

This study includes 12 consecutive patients who had a colonoscopy performed between Mar 2009 and May 2010 (10/83,33% females, 2/16,67% males), finding sessile lesion have a predilection for the proximal colon, pits patterns I – II (crypt dilatation and horizontal extension of crypts immediately above the muscularis mucosae). The application of this new technology electronic chromoendoscopy combined with high resolution endoscopy has promising areas of development in the description of pathologic mucosal changes and microvessels. This advanced technology allows an increased correlation between the images processed and the histological results. The serrated pathway neoplastic encompasses a morphologically and molecularly distinct group of colorectal neoplasms and represents an alternative molecular pathway to colorectal cancer. The sequence appears to begin with a non-dysplastic serrated polyp to a serrated adenoma and ultimately to carcinoma. Morphological and molecular studies are distinguishing a separate evolutionary pathway for colorectal cancer with extensive DNA methylation, mutation of BRAF and microsatellite instability.

Evaluation of Colon Pattern using Virtual CT Colonoscopy in Patients with Difficult Colonscopic Insertion / 대한소화기내시경학회지

BACKGROUND/AIMS: The successful colonoscopic insertion has been predicted by several clinical factors including female gender, obesity, poor bowel preparation, and a history of surgery. In addition, anatomical differences, such as Kudo's pattern (B, C of the sigmoid colon), rotation of the hepatic and splenic flexure, and the diameter of the sigmoid colon have also been considered to affect the success of colonoscopic insertion. The aim of this study was to evaluate the anatomical factors using virtual CT colonscopy in the case where the colonoscopic insertion is difficult. METHODS: From April 2005 to June 2005, 32 patients who experienced a delayed insertion time > or =10 minutes during colonoscopy (Group I) and other 34 patients whose insertion time was <10 minutes (Group II) were examined by virtual CT colonoscopy. The shape of the sigmoid colon was compared with Kudo's pattern, rotation of hepatic (HFR) and splenic flexure (SFR), and the diameter of the most distended sigmoid colon at the supine position (SCD) in both groups. Excessive SFR or HFR was defined if the splenic flexure or hepatic flexure was rotated by more than 360 degrees from the natural course of the colon. RESULTS: There were significant differences between group I (M : F=16 : 16, mean age: 61.7+/-13.8, SCD: 40.9+/-7.4 mm) and group II (M : F=25 : 9, mean age: 46.9+/-11.4, SCD: 39.7+/-7.2 mm) in terms of gender, age, BMI (24.1+/-3.5 kg/m2 in group I, 23.5+/-2.1 kg/m2 in group II), and the colonoscopic insertion time (18.1 minutes in group I, 6.3 minutes in group II). The Kudo's pattern was as follows: pattern A : B : C=23.3% : 36.7% : 40.0% in group I, and pattern A : B : C=50.0% : 37.5% : 12.5% in group II. Excessive rotation of the splenic flexure was 50% in group I, and 21.9% in group II. However, there were no clinical significant difference in bowel preparation, sedation, previous bowel operation, the type of cathartics and SCD. CONCLUSIONS: Anatomical differences can affect a difficult colonoscopic insertion, which includes shape of the sigmoid colon, excessive rotation of the splenic flexure. However a further large randomized trial study will be needed.

Evaluation of Colon Pattern using Virtual CT Colonoscopy in Patients with Difficult Colonscopic Insertion / 대한소화기내시경학회지

BACKGROUND/AIMS: The successful colonoscopic insertion has been predicted by several clinical factors including female gender, obesity, poor bowel preparation, and a history of surgery. In addition, anatomical differences, such as Kudo's pattern (B, C of the sigmoid colon), rotation of the hepatic and splenic flexure, and the diameter of the sigmoid colon have also been considered to affect the success of colonoscopic insertion. The aim of this study was to evaluate the anatomical factors using virtual CT colonscopy in the case where the colonoscopic insertion is difficult. METHODS: From April 2005 to June 2005, 32 patients who experienced a delayed insertion time > or =10 minutes during colonoscopy (Group I) and other 34 patients whose insertion time was <10 minutes (Group II) were examined by virtual CT colonoscopy. The shape of the sigmoid colon was compared with Kudo's pattern, rotation of hepatic (HFR) and splenic flexure (SFR), and the diameter of the most distended sigmoid colon at the supine position (SCD) in both groups. Excessive SFR or HFR was defined if the splenic flexure or hepatic flexure was rotated by more than 360 degrees from the natural course of the colon. RESULTS: There were significant differences between group I (M : F=16 : 16, mean age: 61.7+/-13.8, SCD: 40.9+/-7.4 mm) and group II (M : F=25 : 9, mean age: 46.9+/-11.4, SCD: 39.7+/-7.2 mm) in terms of gender, age, BMI (24.1+/-3.5 kg/m2 in group I, 23.5+/-2.1 kg/m2 in group II), and the colonoscopic insertion time (18.1 minutes in group I, 6.3 minutes in group II). The Kudo's pattern was as follows: pattern A : B : C=23.3% : 36.7% : 40.0% in group I, and pattern A : B : C=50.0% : 37.5% : 12.5% in group II. Excessive rotation of the splenic flexure was 50% in group I, and 21.9% in group II. However, there were no clinical significant difference in bowel preparation, sedation, previous bowel operation, the type of cathartics and SCD. CONCLUSIONS: Anatomical differences can affect a difficult colonoscopic insertion, which includes shape of the sigmoid colon, excessive rotation of the splenic flexure. However a further large randomized trial study will be needed.

Study on evaluation of some specimen of Species Geranium nepalense Kudo cultivated in Hanoi center of study on medicinal plants, in the crop 2001-2002

The study on three varieties of Geranium nepalense Kudo cultivated in Ha Noi Herbal Research Center in the 2001-2002 crop showed that: the average growth time of median-term variety is 190 days. This variety has most vigorous growth with highest height and largest volume, produce highest herbal productivity. This variety is more likely to be suitable to land and climate conditions of Red River delta. The content of essential substance such as tanin and flavonoid of varieties II and III is comparable

Clinical application of magnifying chromoscopy in detection and diagnosis of colorectal elevated lesion / 中华消化杂志

Objective To evaluate the clinical value of magnifying chromoscopy in combination with Kudo criteria in detection and diagnosis of colorectal lesions. Methods After conventional electronic colonoscopic diagnosis of 125 colorectal lesions, staining and magnifying observation by chromoscopy were made with Kudo criteria, and biopsy specimen and resected samples were sent for pathologic examinations. Results The accuracy of ordinary colonoscopy and magnifying colonoscopy compared with histological diagnosis of inflammatory polyps, tubular adenomas, villous adenomas and colorectal cancer was 95.62%, 80%, 90% and 100% respectively and 100%, 93.75%, 92.86% and 100% respectively. The overall accuracy of two procedures was 85.6% and 95.2% respectively. Conclusions Magnifying chromoscopy is valuable in detection of tiny and slightly elevated colorectal lesion, and has high efficacy in judging the nature of lesions with Kudo criteria.

DCA on medicinal materials of three species of Isodon Kudo based on their UV spectra / 中草药

Object To observe the differences of Isodon amethystoides (Benth.) C. Y. Wu et Hsuan, I. nervosa (Hemsl) Kudo and I. macrocalyx (Dunn) Kudo from different regions in their UV spectra, to make the applicability of the method of Detrended Correspondence Analysis (DCA) clear in the comparison of Chinese medicinal materials based on the UV spectra. Methods The UV spectra of the 15 samples of I. amethystoides, I. nervosa and I. macrocalyx from different regions and organs were obtained, based on the indices of wavenumber absorbance, the differences of 15 UV spectra were compared by DCA. Results(1) the UV spectra of I. amthystoides from different regions were very different; (2) the samples of I. macrocalyx (or I. nervosa) from the same region were rather similar in their UV spectra; (3) there were resemblances among I. nervosa, I. macrocalyx and I. amethystoides in their UV spectra.; (4) the difference of UV spectra between the stems and leaves were obvious. Conclusion The above results indicate: (1) the medicinal effects of I. amethystoides from different regions may be very different; (2) the stems and leaves of I. amethystoides are of different medical effects; (3) I. macrocalyx and I. nervosa could be considered as the substitutes of I. amethystoides. It is practical to apply DCA on the basis of UV spectra to compare the chemical differences of plant samples.

Preparation of acteoside and forsythoside B reference substances from Lamiophlomis rotata / 中草药

Objective To establish a method for the isolation and preparation of forsythoside B and acteoside reference substances from Lamiophlomis rotata.Methods Forsythoside B and acteoside in L.rotata were isolated and purified by macroporous resin,Sephadex column,and preparative HPLC.Results Analysis with HPLC showed the content of the prepared acteoside and forsythoside B reached to 98.93 and 99.91%,respectively.Conclusion This method is effective for the high purity of prepared acteoside and forsythoside B.It can be used as reference substances for the qualitative and quantitative analyses of Chinese herbal medicine.

Quality standard improvement of Compound Isodon Rernifolia (D.Don) Kudo Tablets / 中成药

AIM: HPLC-ELSD method was established to investigate the content of oleanolic acid and ursolic acid in Compound Isodon Rernifolia(D.Don) Kudo Tablets. METHODS: The determination of oleanolic acid and ursolic acid was conducted by HPLC-ELSD using a Agilent Eclipse XDB-C_(18)(4.6 mm?250 mm,5 ?m) column;The mobile phase consisted of methanol-0.5% ammonium acetate solution(82∶18).The flow rate was 1.0 mL/min.The column temperature was set at 30 ?C.The drift tube temperature was set at 85 ?C.The gas flow rate was 2.0 L/min. RESULTS: The linear ranges of oleanolic acid and ursolic acid were 0.45-2.69 ?g(r=0.999 9) and 0.63-3.75 ?g(r=0.999 3),respectively.The average recoveries of oleanolic acid and ursolic acid were(100.3%)(RSD=1.32%) and 100.6%(RSD=1.66%),respectively. CONCLUSION: The method is simple,accurate,and specific which is better than the original one.