RESUMO
Yang ke xuan cui («¼) is a surgical work compiled by Chen Wenzhi () of the Ming Dynasty. There are few of research on the completion and author of the book. Based on the evidences in the local chronicles, the prefaces and postscripts of the book, it has been verified that the book was originally completed no later than 1591, and Chen Wenzhi passed away no later than 1623. After investigating the 6 editions collected by 8 institutions, a collection of 11 books in total, by comparing the characteristics and circulation relationship of each edition, two systems of circulation were sorted out: block-printed edition of Xu Xi () and review edition of Xu Dachun ().
Assuntos
Livros , Cirurgia Geral , Livros/história , História do Século XVII , História do Século XVIRESUMO
OBJECTIVE: To investigate the therapeutic effect of gene silencing peptidyl arginine deaminase 4 (PAD4) on pulmonary interstitial lesions induced by collagen-induced arthritis (CIA) mice, and possible mechanisms. METHODS: A CIA mouse model was established in DBA/1 mice, followed by a tail vein injection of the virus solution prepared by the PAD4-siRNA expression vector once a week for 8 times. The mice were sacrificed at the end of the experiment. The expression of PAD4 mRNA in lungs was detected by real-time quantitative PCR (qRT-PCR). The expression of PAD4 protein was detected by tissue immunohistochemistry. Cell culture was performed by spleen tissue. Flow cytometry changes in the ratio of Tfh cells to Tfr cells were examined; lung staining was performed in the lungs to observe changes in lung pathology. RESULTS: (1) Compared with the blank group, the expression of PAD4 mRNA in the lung tissue of the model group increased, the difference was statistically significant (P < 0.05). PAD4 mRNA in the lung tissue of the CIA mice after PAD4-siRNA treatment. The expression level was significantly lower than that of the model group and the negative control group, and the difference was statistically significant (P < 0.05). (2) Red fluorescence was less in the lung tissue of the blank group, while more red fluorescence was observed in the inflammatory cell infiltration area and trachea around the lung tissue of the model group and the negative control group, and the red fluorescence of the three groups after PAD4-siRNA treatment was significantly reduced; (3) Compared with the blank group, the proportion of Tfh cells in the model group increased, the difference was statistically significant (P < 0.05), the proportion of Tfh cells in spleen cells of the CIA mice after PAD4-siRNA treatment was significantly lower than that of the model group and the negative control group, the difference was statistically significant (P < 0.05); compared with the blank group, in the mouse spleen cells in the model group the proportion of Tfr cells was slightly decreased, but the difference was not statistically signifi-cant. The proportion of Tfr cells in the spleen cells of the mice increased after PAD4-siRNA treatment, but the difference was statistically significant only in the PAD4-siRNA2 group compared with the model group and the negative control group (P < 0.05); (4) The proportion of Tfh/Tfr in the spleen cells of the model group was increased, compared with the blank group, the difference was statistically significant (P < 0.05); the ratio of Tfh/Tfr in the three groups after PAD4-siRNA treatment all decreased, the difference was statistically significant (P < 0.05); (5) Compared with the blank group, the alveolar wall of the lung tissue of the model group was thickened, the inflammatory cell infiltration was increased, and the lung tissue destruction and inflammatory infiltration of the CIA mice were decreased after PAD4-siRNA treatment. The degree of reduction was reduced. CONCLUSION: Gene silencing of PAD4 can reduce the proportion of Tfh cells, increase the proportion of Tfr cells, reverse the proportion of Tfh/Tfr, and reduce the degree of interstitial lesions and inflammatory infiltration of lung tissue.
Assuntos
Artrite Experimental , Animais , Arginina , Artrite Experimental/genética , Artrite Experimental/terapia , Inativação Gênica , Pulmão , Camundongos , Camundongos Endogâmicos DBARESUMO
Objective: To evaluate the risk factors of coloanal anastomotic stricture after laparoscopic intersphincteric resection (Lap-ISR) for patients with low rectal cancer. Methods: A retrospective case-control study was performed to collect clinicopathological data from a prospective database (registration number: ChiCTR-ONC-15007506) at the Department of Colorectal Surgery, the Characteristic Medical center of PLA Rocket Force. From June 2011 to August 2018, a total of 144 consecutive patients with low rectal cancer who underwent Lap-ISR were enrolled in the study. Inclusion criteria: (1) reconstruction of digestive tract by end-to-end hand-made coloanal anastomosis (HCAA); (2) distance from lower tumor margin to anorected sphincter ring < 1 cm and distance from lower tumor margin to intersphincteric groove ≥ 1 cm; (3) T1-3 stage tumor with expected negative circumferential resection margin evaluated by preoperative MRI or 3D endoanal ultrasound; (4) rectal cancer confirmed as well- or moderately-differentiated adenocarcinoma; (5) preoperative Wexner incontinence score >10 points. Exclusion criteria: (1) follow-up period less than 3 months; (2) multiple primary cancers; (3) undergoing colonic J-pouch, coloplasty or reconstruction of end-to-side coloanal anastomosis; (4) death within perioperative period (within 3 months after surgery). Coloanal anastomotic stricture was diagnosed if the index finger or 12 mm electronic colonoscope had obvious resistance through the anastomosis or new rectum, or could not pass, accompanied by clinical symptoms such as difficult defecation and anal incontinence. Degree of anastomotic stricture was divided into 3 grades: grade A required anal enlargement, laxative or enema to assist defecation without active surgical treatment; grade B required surgery or endoscopic intervention; grade C required definitive ostomy, including unreducible preventive ileostomy or permanent colostomy. Univariate and multivariate analysis were used to evaluate the effects of 28 variables, including baseline data (age, gender, body mass index, neoadjuvant therapy, etc.), tumor-related factors (distance between tumor low margin and anal edge, maximum diameter of tumor, TNM staging, etc.), surgery-related factors (operation time, intraoperative blood loss, ISR procedure, anastomotic height, etc.) and anastomotic leakage, on the postoperative coloanal anastomotic stricture. Univariate analysis used χ(2) test or Fisher's exact test, then factors with P<0.05 were further included in multivariate analysis using logistic regression. Results: A total of 144 patients were enrolled in the study, including 90 males and 54 females with a median age of 59 years and median BMI of 24.88 kg/m(2). R0 resection rate was 96.5% (139/144). Median tumor distal resection margin was 1.5 (0.5 to 3.0) cm. Median follow-up was 31.5 (4 to 86) months. Coloanal anastomotic stricture was observed in 19 patients (13.2%), including 3 cases (2.1%) of grade A, 9 cases (6.2%) of grade B, and 7 cases (4.9%) of grade C. The median interval from the initial surgery to diagnosis of anastomotic stricture was 7 (1 to 31) months. Univariate analysis showed that male (χ(2)=6.795, P=0.009), radiotherapy (χ(2)=13.330, P=0.001), operation type of ISR (χ(2)=7.996, P=0.013), and anastomotic leakage (χ(2)=10.198, P=0.004) were associated with the postoperative coloanal anastomotic stricture. Multivariate analysis further indicated that male (OR=5.975, 95% CI: 1.209-29.534, P=0.028), postoperative radiotherapy (OR=8.748, 95% CI: 2.397-31.929, P=0.001), and anastomotic leakage (OR=6.313, 95% CI: 1.834-21.734, P=0.003) were independent risk factor of postoperative coloanal anastomotic stricture. Conclusion: For male patients, or patients with postoperative radiotherapy or anastomotic leakage, close follow-up should be carried out to prevent postoperative coloanal anastomotic stricture following Lap-ISR.
Assuntos
Adenocarcinoma/cirurgia , Canal Anal/patologia , Anastomose Cirúrgica/efeitos adversos , Colo/patologia , Constrição Patológica/patologia , Neoplasias Retais/cirurgia , Adenocarcinoma/complicações , Adenocarcinoma/patologia , Canal Anal/cirurgia , Colo/cirurgia , Constrição Patológica/etiologia , Feminino , Humanos , Laparoscopia/efeitos adversos , Masculino , Pessoa de Meia-Idade , Estudos Prospectivos , Neoplasias Retais/complicações , Neoplasias Retais/patologia , Estudos Retrospectivos , Fatores de RiscoRESUMO
Objectives of this study were to investigate the effects of supplementing rumen-protected methionine (RP-Met), threonine (RP-Thr), isoleucine (RP-Ile), and leucine (RP-Leu) individually or jointly to a low-protein diet, on the performance of lactating dairy cows, as well as to determine the effects of these amino acids (AA) on the mammalian target of rapamycin (mTOR) in vivo. Ten lactating Holstein cows were randomly allocated to a repeated 5 × 5 Latin square experiment with five 19-d periods. Treatments were high-protein diet (16% crude protein, positive control; HP), low-protein diet (12% crude protein, negative control; LP), LP plus RP-Met (LPM), LP plus RP-Met and RP-Thr (LPMT), and LP plus RP-Met, RP-Thr, RP-Ile, and RP-Leu (LPMTIL). The dry matter intakes (DMI) of the LP, LPM, and LPMT diets were lower than that of the HP diet, whereas the DMI of the LPMTIL diet was intermediate between the HP diet and the other LP diets. Supplementing RP-Met to the LP diet increased the yields of milk and milk protein, increased the content of milk urea N, and tended to increase milk N efficiency. Co-supplementation of RP-Thr with RP-Met resulted in no further milk production increase. Co-supplementation of all 4 rumen-protected amino acids (RP-AA) increased milk and lactose yields to the level of the HP diet and tended to increase milk protein yield compared with the LPMT diet. We found no significant differences in the contents and yields of milk components between the LPMTIL and HP diets except for a lower milk urea N content in the LPMTIL diet. Venous concentrations of the measured AA were similar across the LP and LP diets supplemented with RP-AA. Relative to levels of the HP diet, LP diets had higher venous concentrations of Met and Gly and tended to have higher Phe concentration and lower concentrations of Val and BCAA. The LPMTIL diet had higher venous concentrations of Arg, Lys, Met, Phe, and Glu, and a lower Val concentration. Phosphorylation status of the measured mTOR components in LPM and LPMT treatments were similar to those in the LP treatment but phosphorylation status of mTOR and eIF4E-binding protein 1 (4eBP1) in LPMTIL treatment were higher. The phosphorylation rates of eukaryotic elongation factor 2 (eEF2) in the 4 LP and LP plus RP-AA diets were higher than that of the HP diet. Overall, results of the present study supported the concept that under the relatively short time of this experiment, supplementing RP-AA, which are believed to stimulate the mTOR signal pathway, can lead to increased milk protein yield. This increase appears to be due to increased DMI, greater mTOR signaling, and greater eEF2 activity.
Assuntos
Aminoácidos Essenciais/administração & dosagem , Bovinos/fisiologia , Suplementos Nutricionais/análise , Proteínas do Leite/análise , Leite/metabolismo , Nitrogênio/metabolismo , Aminoácidos Essenciais/análise , Animais , Indústria de Laticínios , Dieta/veterinária , Dieta com Restrição de Proteínas/veterinária , Feminino , Lactação/efeitos dos fármacos , Lactose/metabolismo , Metionina/administração & dosagem , Leite/química , Nitrogênio/análise , Rúmen/metabolismo , Transdução de Sinais/efeitos dos fármacos , Serina-Treonina Quinases TOR/metabolismo , Ureia/análiseRESUMO
Huangqi (Radix Astragali) is a well-known traditional Chinese herbal medicine, it is an effective treatment for consumptive disease, such as the common cold, diarrhea, fatigue and cardiac diseases. Astragalosides (AST) is the main component of Huangqi. The purpose of this study is to investigate the modulation effect of AST on the skeletal muscle contractile function. Our results showed that the toad gastrocnemius muscle contractile response was significantly increased after the use of AST (25 mg/L, bath for the isolated muscle), which produced a left-ward shift of the contractile force-stimulation intensity curve. Moreover, AST also prevented the repetitive stimulation-induced decrease in muscle contractile force and recovery amplitude of muscle contraction. These results demonstrate that AST can affect contractile performance of toad gastrocnemius muscle and contribute to skeletal muscle anti-fatigue.
Assuntos
Astrágalo , Músculo Esquelético/efeitos dos fármacos , Saponinas/farmacologia , Triterpenos/farmacologia , Animais , Anuros , Técnicas In Vitro , Contração Muscular/efeitos dos fármacos , Fadiga Muscular/efeitos dos fármacos , Fadiga Muscular/fisiologia , Músculo Esquelético/fisiologiaRESUMO
BACKGROUND: Danggui Buxue Tang (DBT), a Chinese herbal decoction containing Astragali Radix (AR; roots of Astragalus memebranaceus (Fisch.) Bunge var. mongholicus (Bunge) Hsiao) and Angelicae Sinensis Radix (ASR; roots of Angelica sinensis Oliv.) at a weight ratio of 5:1, is used to improve menopausal syndromes in women. Several lines of evidence indicate that DBT has strong estrogenic property; however, the action mechanism of this herbal decoction is not known. Calycosin, a major flavonoid in AR, shares similar structure with ß-estradiol, and thus which is hypothesized to be the key compound of DBT in responsible for such estrogenic properties. AIMS: We aimed to determine the role of calycosin in DBT in terms of its estrogenic functions by the creation of calycosin-depleted DBT (DBTΔcal) and calycosin-added DBT (DBT+cal) herbal extracts. METHODS: The signalings triggered by DBT∆cal, DBT+cal, and parental DBT were compared in cultured MCF-7 cells by determining: (i) the activation of estrogen responsive element; (ii) the phosphorylation of estrogen receptor α (ERα); and (iii) the phosphorylation of Erk1/2. The DBT-induced responses were in dose- and/or time-dependent manners. RESULTS: The estrogenic signals triggered by DBT were markedly reduced in DBTΔcal, and in contrast the addition of calycosin in DBT, i.e. DBT+cal, enhanced the responses by 2-5 folds; however, calycosin alone did not show such properties. In parallel, the DBT-induced responses could be significantly blocked by inhibitors for estrogen receptor and mitogen activated protein kinases. CONCLUSION: Thus, we hypothesize that calycosin is an indispensable chemical in DBT, and which plays a linker in orchestrating multi-components of DBT as to achieve the maximal estrogenic functions. These discoveries should be invaluable in drug development and in investigating the modernization of traditional Chinese medicine from a new perspective.
Assuntos
Neoplasias da Mama/tratamento farmacológico , Medicamentos de Ervas Chinesas/farmacologia , Estrogênios/farmacologia , Isoflavonas/farmacologia , Neoplasias da Mama/metabolismo , Neoplasias da Mama/patologia , Relação Dose-Resposta a Droga , Estradiol/farmacologia , Receptor alfa de Estrogênio/agonistas , Receptor alfa de Estrogênio/metabolismo , Feminino , Células HEK293 , Humanos , Células MCF-7 , Proteína Quinase 1 Ativada por Mitógeno/metabolismo , Proteína Quinase 3 Ativada por Mitógeno/metabolismo , Fosforilação , Fitoterapia , Plantas Medicinais , Elementos de Resposta/efeitos dos fármacos , Transdução de Sinais/efeitos dos fármacos , Fatores de Tempo , TransfecçãoRESUMO
OBJECTIVES: To determine the efficacy of music therapy in the management of depression in the elderly. METHOD: We conducted a systematic review and meta-analysis of randomized controlled trials. Change in depressive symptoms was measured with various scales. Standardized mean differences were calculated for each therapy-control contrast. RESULTS: A comprehensive search yielded 2,692 citations; 19 articles met inclusion criteria. Meta-analysis suggests that music therapy plus standard treatment has statistical significance in reducing depressive symptoms among older adults (standardized mean differences = 1.02; 95% CI = 0.87, 1.17). CONCLUSIONS: This systematic review and meta-analysis suggests that music therapy has an effect on reducing depressive symptoms to some extent. However, high-quality trials evaluating the effects of music therapy on depression are required. Copyright © 2016 John Wiley & Sons, Ltd.
Assuntos
Transtorno Depressivo/terapia , Musicoterapia , Idoso , Terapia Combinada , Humanos , Musicoterapia/métodos , Musicoterapia/normas , Ensaios Clínicos Controlados Aleatórios como AssuntoRESUMO
Objective:The aim of this study is to investigate the climatic changes on spring phenology impacting on the consultation rate of patients with allergic rhinitis.Method:We analyzed the periods of full flowering stages of 15 kinds of flowers in Beijing from 2013 to 2014,and the number of patients with allergic rhinitis in the outpatient clinic of Otolaryngology Department of Peking University Third Hospital in the same time.The correlation test, analysis of variance and rank sum test were used to investigate the inherent laws and associations between the full flowering stages and the ratio of patients with allergic rhinitis.Result:â Between 2013 and 2014,the early and middle April were the full flowering stages of Platycladus orientalis,Salix matsudana, Fraxinus chinensis,Elms and Birches.The number of patients with allergic rhinitis in outpatient clinic elevated obviously in this period.â¡There were overlaps of full flowering stages among different plants.During periods in which three or more kinds of pollens in full flowering stages,the consultation rate of patients with allergic rhinitis is higher than less overlaping flower period.The difference was statistically significant(F value were -2.281,-2.964 respectively, P <0.05).Also,there were obvious positive linear correlations between the number of overlap of different pollens and the consultation rate of patients with allergic rhinitis in in 2013 and 2014(r=0.957, 0.964 respectively).Conclusion:During the overlaping flower periods,there was a higher consultation rate of patients with allergic rhinitis.In prevention and treatment of allergic rhinitis,the overlapping effect of full flowering stages of different pollens should be taken into account.Upgrade the alarm level will reduce the incidence of AR and the degree of allergic rhinitis episodes.
Assuntos
Alérgenos , Pólen , Rinite Alérgica/epidemiologia , Pequim/epidemiologia , Humanos , Encaminhamento e Consulta/estatística & dados numéricos , Estações do AnoRESUMO
The magnitude of inbreeding depression within populations is important for the evolution and maintenance of mixed mating systems. However, data are sparse on the magnitude of inbreeding depression in Robinia pseudoacacia. In this study, we compared differences in the mature seed set per fruit, seed mass, germination success, and seedling growth between self- and cross-pollination treatments and estimated the inbreeding depression at 3 stages: seed maturation, seedling emergence, and seedling growth at 10 and 20 weeks. We found that progenies resulting from cross-pollination treatments showed significantly higher fitness than progenies resulting from self-pollination, causing high levels of inbreeding depression. Inbreeding depression was not uniformly manifested, however, over the 3 stages. Inbreeding depression was the greatest between fertilization and seed maturation stage (δ = 0.5419), and the seedling emergence (0.3654) stage was second. No significant differences in seedling growth were observed between selfed and crossed progenies. The cumulative inbreeding depression (δ) across all 3 stages averaged 0.7452. Inbreeding depression may promote outcrossing in R. pseudoacacia by acting as a post-pollination barrier to selfing. The large difference in the seed set between self- and cross-pollination that we detected indicated that inbreeding depression would probably be a reasonable explanation for the high abortion and low seed set in R. pseudoacacia.
Assuntos
Robinia/crescimento & desenvolvimento , Sementes/crescimento & desenvolvimento , Autofertilização , Germinação , Endogamia , Fenótipo , Polinização , Robinia/genética , Plântula/genética , Plântula/crescimento & desenvolvimento , Sementes/genéticaRESUMO
Recently Simmons et al. reported a new mechanism for SARS virus entry into target cells, where MDL28170 was identified as an efficient inhibitor of CTSL-meditated substrate cleavage with IC(50) of 2.5 nmol/l. Based on the molecule fingerprint searching method, 11 natural molecules were found in the Traditional Chinese Medicines Database (TCMD). Molecular simulation indicates that the MOL376 (a compound derived from a Chinese medicine herb with the therapeutic efficacy on the human body such as relieving cough, removing the phlegm, and relieving asthma) has not only the highest binding energy with the receptor but also the good match in geometric conformation. It was observed through docking studies that the van der Waals interactions made substantial contributions to the affinity, and that the receptor active pocket was too large for MDL21870 but more suitable for MOL736. Accordingly, MOL736 might possibly become a promising lead compound for CTSL inhibition for SARS therapy.
Assuntos
Catepsinas/antagonistas & inibidores , Bases de Dados Factuais , Medicamentos de Ervas Chinesas/farmacologia , Preparações de Plantas/farmacologia , Inibidores de Proteases/farmacologia , Síndrome Respiratória Aguda Grave/tratamento farmacológico , Algoritmos , Catepsina L , Simulação por Computador , Cisteína Endopeptidases , Avaliação Pré-Clínica de Medicamentos , Medicamentos de Ervas Chinesas/química , Precursores Enzimáticos/antagonistas & inibidores , Humanos , Modelos Moleculares , Conformação Molecular , Estrutura Molecular , Preparações de Plantas/química , Inibidores de Proteases/químicaRESUMO
The root of Panax notoginseng (Radix Notoginseng, Sanqi) is a commonly used traditional Chinese medicine, which is mainly cultivated in Wenshan of Yunnan China. The identified active constituents in Radix Notoginseng include saponin, ssavonoid and polysaccharide; however, the levels of these active constituents vary greatly with different extraction processes. This variation causes a serious problem in standardizing the herbal extract. By using HPLC and spectrophotometry, the contents of notoginsenoside R(1), ginsenoside R(g1), R(b1), R(d), and ssavonoids were determined in the extracts of Radix Notoginseng that were derived from different processes of extraction according to an orthogonal array experimental design having three variable parameters: nature of extraction solvent, extraction volume and extraction time. The nature of extraction solvent and extraction volume were two distinct factors in obtaining those active constituents, while the time of extraction was a subordinate factor. The optimized condition of extraction therefore is considered to be 20 volumes of water and extracted for 24 h. In good agreement with the amount of active constituents, the activity of anti-platelet aggregation was found to be the highest in the extract that contained a better yield of the active constituents. The current results provide an optimized extraction method for the quality control of Radix Notoginseng.
Assuntos
Fracionamento Químico/métodos , Panax/química , Extratos Vegetais/química , Raízes de Plantas/química , Animais , Ginsenosídeos/química , Ginsenosídeos/isolamento & purificação , Ginsenosídeos/farmacologia , Extratos Vegetais/farmacologia , Agregação Plaquetária/efeitos dos fármacos , Controle de Qualidade , Quercetina/química , Quercetina/isolamento & purificação , Quercetina/farmacologia , CoelhosRESUMO
Application of modern genetic manipulation has been limited in pepper ( Capsicum annuum L.) due to the lack of an efficient transformation system. Following the development of an efficient protocol for in vitro regeneration of pepper cotyledons, we investigated the key factors affecting transformation and established a highly efficient genetic transformation system using the pepper cotyledon as starting material. In this system, cotyledon explants are preconditioned for 2 days on kanamycin (km)-free DM1 medium [Murashige and Skoog (MS) salts/Gamborg B5 vitamins basal medium supplemented with 20 g/l sucrose, 5,000 mg/l DJ nutrients and a hormone combination of 1.0 mg/l indoleacetic acid (IAA) and 5.0 mg/l 6-benzyladenine (BA) solidified with 0.7% agar, pH 5.8], followed by co-cultivation with Agrobacterium tumefaciens on DM1 for 2 days and delay selection on DM1 with 500 mg/l carbenicillin (carb) for 2 days. The explants are then placed on DM1 containing 10 mg/l AgNO(3), 50 mg/l km-sulfate and 500 mg/l carb. After 4-5 weeks, the explants with buds are transferred to EM1 medium (MS salts/Gamborg B5 vitamins basal medium supplemented with 20 g/l sucrose, 5,000 mg/l DJ nutrients, 10 mg/l AgNO(3) and a hormone combination of 1.0 mg/l IAA, 3.0 mg/l BA and 2.0 mg/l gibberellic acid, solidified with 0.7% agar, pH 5.8) with 50 mg/l kanamycin and 500 mg/l carbenicillin for the elongation of buds. After 3-6 weeks, 1- to 2-cm-long elongated shoots are excised and planted on RM1 medium (MS basal medium supplemented with a hormone combination of 0.2 mg/l NAA and 0.1 mg/l IAA, solidified with 0.8% agar, pH 5.8) with 25 mg/l km and 200 mg/l carb for rooting. We tested four genotypes of pepper, and all presented a high differentiation efficiency (81.3% on average), elongation rate (61.5%) and rooting efficiency (89.5%). Polymerase chain reaction analysis results showed that 40.8% of the regenerated plantlets were transgenic plants.
Assuntos
Adenina/análogos & derivados , Capsicum/genética , Reguladores de Crescimento de Plantas/farmacologia , Plantas Geneticamente Modificadas/genética , Transformação Genética , Adenina/farmacologia , Agrobacterium tumefaciens/genética , Compostos de Benzil , Capsicum/fisiologia , Carbenicilina/farmacologia , Cotilédone/efeitos dos fármacos , Cotilédone/genética , Cotilédone/fisiologia , Técnicas de Cultura , Genótipo , Giberelinas/farmacologia , Ácidos Indolacéticos/farmacologia , Canamicina/farmacologia , Cinetina , Plantas Geneticamente Modificadas/efeitos dos fármacos , Plantas Geneticamente Modificadas/fisiologia , Purinas , Regeneração/efeitos dos fármacos , Regeneração/genética , Fatores de TempoRESUMO
Radix Adenophorae (Shashen), a traditional Chinese medicine commonly used as an antitussive and expectorant, is derived from roots of Adenophora stricta Miq. and Adenophora tetraphylla (Thunb.) Fisch. Twelve species and varieties of Adenophora and Glehnia, however, could act as substitutes or adulterants of Radix Adenophorae on the commercial markets in South East Asia, and roots of Adenophora hunanensis Nannf. and Glihnia littoralis F. Schmidt ex Miq. are the most common examples. The authentic identification of dried roots of A. stricta and A. tetraphylla, however, is difficult on the basis of appearance and morphology. A molecular genetic approach was developed here to identify the species of Radix Adenophorae. The 5S-rRNA spacer domains (approximately 250 bp) were amplified by the polymerase chain reaction (PCR) from genomic DNAs isolated from A. stricta, A. tetraphylla, A. hunanensis and G. littoralis, and subsequently, the nucleotide sequences were determined. Diversity in DNA sequence and restriction enzyme mapping among various species were found in their 5S-rRNA spacer domains, which could serve as markers for authentic identification of Radix Adenophorae.
Assuntos
Campanulaceae/genética , Medicamentos de Ervas Chinesas/normas , Raízes de Plantas/genética , RNA Ribossômico 5S/genética , Antitussígenos/normas , Sequência de Bases , Campanulaceae/classificação , Indústria Farmacêutica/normas , Expectorantes/normas , Marcadores Genéticos , Dados de Sequência Molecular , RNA de Plantas/análiseRESUMO
Nine commercial brands of grapefruit juice were analyzed for their flavonoid content by HPLC to determine if significant brand-to-brand variance in grapefruit juice flavonoid content exists. Flavonoid glycosides narirutin, naringin, hesperidin, neohesperidin, didymin, and poncirin have been identified in all the grapefruit juices examined. The aglycone quercetin was detected in only two brands. All the juices were free from methoxylated flavonoid aglycones. There was a significant difference in the amounts of total flavonoids and individual flavonoids in the nine brands. The concentration of total flavonoids ranged between 19.44 and 84.28 mg/100 ml juice. Naringin was found to be the major flavonoid followed by narirutin and hesperidin. Their concentrations ranged from 14.56 to 63.8; 2.25 to 12.20; and 0.24 to 3.12 mg/100 ml juice, respectively.
Assuntos
Bebidas/análise , Citrus , Flavonoides/análise , Cromatografia Líquida de Alta Pressão , Sistema Enzimático do Citocromo P-450/metabolismo , Interações Medicamentosas , HumanosRESUMO
Morphological and histological characters of the roots of Stellera chamaejasme L. and S. chamaejasme L. f. chrysantha S. C. Huang, used as the origins of the Chinese medicine Langdu, were described and illustrated with line drawings. TLC analyses of the above two drugs were also undertaken. These studies provide referencial informations for the quality control, development and identification of these two drugs.
Assuntos
Plantas Medicinais/anatomia & histologia , Thymelaeaceae/anatomia & histologia , Cromatografia em Camada Fina , Farmacognosia , Raízes de Plantas/anatomia & histologia , Controle de Qualidade , Sitosteroides/análise , Thymelaeaceae/classificaçãoRESUMO
Morphological and histological characters of the roots of Euphorbia stracheyi Boiss., a traditional Chinese medicine, were described and illustrated with line drawings. TLC analysis of the above drug was also undertaken. These studies provide referencial information for clinics, quality control, development and identification of this crude drug.
Assuntos
Euphorbia/citologia , Plantas Medicinais/citologia , Cromatografia em Camada Fina , Euphorbia/química , Farmacognosia , Raízes de Plantas/química , Raízes de Plantas/citologia , Plantas Medicinais/química , Pós , Controle de Qualidade , Sitosteroides/análiseRESUMO
Morphological and histological characters of the roots of Euphorbia fischeriana Steud., used as one of the origins of traditional Chinese medicine Langdu, were described and illustrated with line drawings. TLC analysis of the above drug was also undertaken. These studies provide referencial informations for clinics, quality control, development and identification of this crude drug.
Assuntos
Euphorbia/anatomia & histologia , Plantas Medicinais/anatomia & histologia , Cromatografia em Camada Fina , Euphorbia/química , Euphorbia/citologia , Farmacognosia , Raízes de Plantas/anatomia & histologia , Raízes de Plantas/química , Raízes de Plantas/citologia , Plantas Medicinais/química , Plantas Medicinais/citologia , Pós , Controle de Qualidade , Sitosteroides/análiseRESUMO
Morphological and microscopical characters of the roots of Euphorbia soongarica Boiss. used as one of the origins of the Chinese medicine Daji in Xinjiang Autonomous Region of China were described and illustrated with line drawings. TLC and HPLC analysis of the above drug was also undertaken. These studies provide referencial informations for clinics, quality control, development and identification of this crude drug.
Assuntos
Euphorbia/anatomia & histologia , Plantas Medicinais/anatomia & histologia , Cromatografia Líquida de Alta Pressão , Cromatografia em Camada Fina , Euphorbia/química , Farmacognosia , Raízes de Plantas/anatomia & histologia , Raízes de Plantas/química , Plantas Medicinais/química , Pós , Controle de Qualidade , Sitosteroides/análiseRESUMO
Morphological and histological characters of the roots of Euphorbia prolifera Buch.-Han., a traditional Chinese medicine, were described and illustrated with line drawings. TLC analysis of the above drug was also undertaken. These studies provide referencial informations for clinics, quality control, development and identification of this crude drug.
Assuntos
Medicamentos de Ervas Chinesas/química , Euphorbia/anatomia & histologia , Raízes de Plantas/anatomia & histologia , Cromatografia em Camada Fina , Medicina Tradicional ChinesaRESUMO
This prospective study was designed to determine whether the autotransfusion of shed mediastinal blood (ATS) after open heart surgery is safe and effective. Forty-two patients undergoing cardiac operation were randomized to receive either nonwashed shed mediastinal blood (group 1; n = 22) or banked blood (group 2: n = 20). No difference in mean age (group 1: 49 +/- 11 years; group 2: 45 +/- 12 years), coronary artery bypass grafting (group 1: n = 5, 23%; group 2: n = 6, 30%), valve replacement (group 1: n = 17, 77%, group 2: n = 14, 70%), and mean preoperative hemoglobin level (group 1: 13.7 +/- 2.3, group 2: 14.4 +/- 1.6) was noted between non-ATS and ATS groups (p = not significant). The mean hemoglobin levels after operation were similar in the two groups (group 1: 11.89 +/- 1.52; group 2: 12.03 +/- 1.34). No difference in the mean blood loss 4, 6 and 24 hours after operation (group 1: 33 +/- 190, 420 +/- 340 and 550 +/- 300; group 2: 340 +/- 230, 420 +/- 280 and 670 +/- 380) was observed between the two groups. The mean volume autotransfused in group I was 380 +/- 230 ml (200 approximately 1300 ml). In group I, the patients required bank blood 1080 +/- 720, compared with 1780 +/- 1045 in group II. The bank blood requirement in group I reducted by 40%. These data demonstrate that ATS after open heart surgery is safe and effective.