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1.
Phytomedicine ; 127: 155461, 2024 May.
Artigo em Inglês | MEDLINE | ID: mdl-38452697

RESUMO

BACKGROUND: The active ingredients of the Chinese medical herb Paris polyphylla, P. polyphylla ethanol extract (PPE) and polyphyllin I (PPI), potentially inhibit epithelial-mesenchymal transition (EMT) in tumors. However, the roles of these ingredients in inhibiting EMT in adenomyosis (AM) remain to be explored. PURPOSE: The primary goal of the study was to uncover the underlying molecular processes through which PPE and PPI suppress EMT in AM, alongside assessing the safety profiles of these substances. METHODS: To assess the suppressive impact of PPE on adenomyosis-derived cells (AMDCs), we employed Transwell and wound healing assays. The polyphyllins (PPI, PPII, PPVII) contained in PPE were characterized using high-performance liquid chromatography (HPLC). Then, bioinformatics techniques were performed to pinpoint potential PPI targets that could be effective in treating AM. Immunoblotting was used to verify the key proteins and pathways identified via bioinformatics. Furthermore, we examined the efficacy of PPE and PPI in treating Institute of Cancer Research (ICR) mice with AM by observing the morphological and pathological features of the uterus and performing immunohistochemistry. In addition, we assessed safety by evaluating liver, kidney and spleen pathologic features and serum test results. RESULTS: Three major polyphyllins of PPE were revealed by HPLC, and PPI had the highest concentration. In vitro experiments indicated that PPE and PPI effectively prevent AMDCs invasion and migration. Bioinformatics revealed that the primary targets E-cadherin, N-cadherin and TGFß1, as well as the EMT biological process, were enriched in PPI-treated AM. Immunoblotting assays corroborated the hypothesis that PPE and PPI suppress the TGFß1/Smad2/3 pathway in AMDCs to prevent EMT from progressing. Additionally, in vivo studies showed that PPE (3 mg/kg and 6 mg/kg) and PPI (3 mg/kg and 6 mg/kg), successfully suppressed the EMT process through targeting the TGFß1/Smad2/3 signaling pathway. Besides, it was observed that lower doses of PPE (3 mg/kg) and PPI (3 mg/kg) exerted minimal effects on the liver, kidneys, and spleen. CONCLUSIONS: PPE and PPI efficiently impede the development of EMT by inhibiting the TGFß1/Smad2/3 pathway, revealing an alternative pathway for the pharmacological treatment of AM.


Assuntos
Adenomiose , Antineoplásicos , Diosgenina/análogos & derivados , Liliaceae , Humanos , Feminino , Animais , Camundongos , Adenomiose/tratamento farmacológico , Linhagem Celular Tumoral , Antineoplásicos/farmacologia , Transição Epitelial-Mesenquimal
2.
BMC Cancer ; 23(1): 536, 2023 Jun 12.
Artigo em Inglês | MEDLINE | ID: mdl-37308852

RESUMO

BACKGROUND: Lymph node size is considered as a criterion for possible lymph node metastasis in imageology. Micro lymph nodes are easily overlooked by surgeons and pathologists. This study investigated the influencing factors and prognosis of micro lymph node metastasis in gastric cancer. METHODS: 191 eligible gastric cancer patients who underwent D2 lymphadenectomy from June 2016 to June 2017 in the Third Surgery Department at the Fourth Hospital of Hebei Medical University were retrospectively analyzed. Specimens were resected en bloc and the postoperative retrieval of micro lymph nodes was carried out by the operating surgeon for each lymph node station. Micro lymph nodes were submitted for pathological examination separately. According to the results of pathological results, patients were divided into the "micro-LNM (micro lymph node metastasis)" group (N = 85) and the "non micro-LNM" group (N = 106). RESULTS: The total number of lymph nodes retrieved was 10,954, of which 2998 (27.37%) were micro lymph nodes. A total of 85 (44.50%) gastric cancer patients had been proven to have micro lymph node metastasis. The mean number of micro lymph nodes retrieved was 15.7. The rate of micro lymph node metastasis was 8.1% (242/2998). Undifferentiated carcinoma (90.6% vs. 56.6%, P = 0.034) and more advanced Pathological N category (P < 0.001) were significantly related to micro lymph node metastasis. The patients with micro lymph node metastasis had a poor prognosis (HR for OS of 2.199, 95% CI = 1.335-3.622, P = 0.002). For the stage III patients, micro lymph node metastasis was associated with shorter 5-year OS (15.6% vs. 43.6%, P = 0.0004). CONCLUSIONS: Micro lymph node metastasis is an independent risk factor for poor prognosis in gastric cancer patients. Micro lymph node metastasis appears to be a supplement to N category in order to obtain more accurate pathological staging.


Assuntos
Carcinoma , Neoplasias Gástricas , Humanos , Metástase Linfática , Estudos Retrospectivos , Suplementos Nutricionais
3.
Toxics ; 11(4)2023 Apr 17.
Artigo em Inglês | MEDLINE | ID: mdl-37112609

RESUMO

Pharmaceutical plants are an essential source of antibiotics emitted into the aqueous environment. The monitoring of target antibiotics in pharmaceutical plants through various regions is vital to optimize contaminant release. The occurrence, distribution, removal, and ecological risk of 30 kinds of selected antibiotics in 15 pharmaceutical plants in the Pearl River Delta (PRD) were investigated in this study. Lincomycin (LIN) showed the highest concentration (up to 56,258.3 ng/L) in the pharmaceutical plant influents from Zhongshan city. Norfloxacin (NFX) showed a higher detection frequency than other antibiotics. In addition, the spatial distribution of antibiotics in pharmaceutical plants showed significant differences, with higher concentrations of total antibiotics found in pharmaceutical plant influents in Shenzhen City than those of different regions in PRD. The treatment processes adopted by pharmaceutical plants were commonly ineffective in removing antibiotics, with only 26.7% of antibiotics being effectively removed (average removal greater than 70%), while 55.6% of antibiotics had removal rates of below 60%. The anaerobic/anoxic/oxic (AAO)-membrane bioreactor (MBR) combined process exhibited better treatment performance than the single treatment process. Sulfamethoxazole (SMX), ofloxacin (OFL), erythromycin-H2O (ETM-H2O), sulfadiazine (SDZ), sulfamethazine (SMZ), norfloxacin (NFX), and ciprofloxacin (CIP) in pharmaceutical plant effluents posed high or moderate ecological risk and deserve particular attention.

4.
Sci Total Environ ; 882: 163100, 2023 Jul 15.
Artigo em Inglês | MEDLINE | ID: mdl-37023822

RESUMO

BACKGROUND: Arsenic (As), cadmium (Cd) and copper (Cu) are hazardous for kidney function, while the effects of selenium (Se) and zinc (Zn) were unexplored for the narrow safe range of intake. Interactions exists between these multiple metal/metalloid exposures, but few studies have investigated the effects. METHODS: A cross-sectional survey was performed among 2210 adults across twelve provinces in China between 2020 and 2021. Urinary As, Cd, Cu, Se and Zn were measured using inductively coupled plasma-mass spectrometry (ICP-MS). Serum creatinine (Scr) and N-acetyl-beta-D glucosaminidases (urine NAG) were quantified in serum and urine, respectively. Kidney function was evaluated by the estimated glomerular filtration rate (eGFR). We employed logistic regression and Bayesian kernel machine regression (BKMR) models to explore the individual and joint effects of urinary metals/metalloids on the risk of impaired renal function (IRF) or chronic kidney disease (CKD), respectively. RESULTS: Association was found between As (OR = 1.24, 95 % CI: 1.03, 1.48), Cd (OR = 1.65, 95 % CI: 1.35, 2.02), Cu (OR = 1.90, 95 % CI: 1.59, 2.29), Se (OR = 1.51, 95 % CI: 1.24, 1.85) and Zn (OR = 1.33, 95 % CI: 1.09, 1.64) and the risk of CKD. Moreover, we observed association between As (OR = 1.18, 95 % CI: 1.07, 1.29), Cu (OR = 1.14, 95 % CI: 1.04, 1.25), Se (OR = 1.15, 95 % CI: 1.06, 1.26) and Zn (OR = 1.12, 95 % CI: 1.02, 1.22) and the risk of IRF. Additionally, it was found that Se exposure may strength the association of urinary As, Cd and Cu with IRF. Furthermore, it is worth noting that Se and Cu contributed greatest to the inverse association in IRF and CKD, respectively. CONCLUSION: Our findings suggested that metal/metalloid mixtures were associated with kidney dysfunction, Se and Cu were inverse factors. Additionally, interactions between them may affect the association. Further studies are needed to assess the potential risks for metal/metalloid exposures.


Assuntos
Arsênio , Metaloides , Insuficiência Renal Crônica , Selênio , Adulto , Humanos , Estudos Transversais , Cádmio , Teorema de Bayes , Metais , Arsênio/urina , Insuficiência Renal Crônica/induzido quimicamente , Insuficiência Renal Crônica/epidemiologia , Rim
5.
Molecules ; 27(11)2022 May 24.
Artigo em Inglês | MEDLINE | ID: mdl-35684303

RESUMO

The iridoid compounds in traditional Chinese medicine play a prominent role in their antiviral effects. We previously reported the anti-inflammatory effect of new iridoids from the aerial parts of Morinda officinalis. Nevertheless, several open questions remain to explore the other biological functions of these new iridoid compounds. Herpes simplex virus-1 (HSV-1) is one of the most prevalent pathogens in human beings worldwide and due to limited therapies, mainly with the guanosine analog aciclovir (ACV) and other analogs, the search for new drugs with different modes of action and low toxicity becomes particularly urgent for public health. This study aimed to explore the anti-HSV-1 effects of iridoids from the aerial parts of Morinda officinalis. The dried aerial parts of Morinda officinalis were extracted with 95% ethanol and systematic separation and purification were then carried out by modern column chromatography methods such as silica gel column, RP-ODS column, Sephadex LH-20 gel column, and semi-preparative liquid phase, and the structure of these compounds were identified through the physical and chemical properties and a variety of spectral techniques. The obtained seven new iridoid compounds were screened for antiviral activity on HSV-1 through CCK8 and the cytopathic effect, and then the plaque reduction assay, the anti-fluorescence reporter virus strain replication, and RT-qPCR experiments were carried out to further evaluate the antiviral effect. Seven new iridoid compounds (officinaloside A-G) were identified from the aerial parts of Morinda officinalis, and officinaloside C showed anti-HSV-1 activity. Further functional experiments confirmed that officinaloside C has a significant inhibiting effect on HSV-1 virus plaque formation, viral gene, and protein expression, and fluorescent virus replication. Our findings suggest that officinaloside C has significant inhibitory effects on viral plaque formation, genome replication, and viral protein expression of HSV-1 which implies that officinaloside C exhibits viral activity and may be a promising treatment for HSV-1 infection.


Assuntos
Herpes Simples , Herpesvirus Humano 1 , Animais , Antivirais/farmacologia , Antivirais/uso terapêutico , Chlorocebus aethiops , Herpes Simples/tratamento farmacológico , Herpesvirus Humano 2 , Humanos , Iridoides/farmacologia , Iridoides/uso terapêutico , Células Vero , Replicação Viral
6.
J Pharm Biomed Anal ; 208: 114403, 2022 Jan 20.
Artigo em Inglês | MEDLINE | ID: mdl-34798392

RESUMO

Morinda officinalis How (MO) possesses prominent tonifying kidney yang and strengthening bone and muscle effects in traditional Chinese medicine (TCM). Due to the complexity of MO components, the chemical mechanism leading to efficacy changes of MO caused by processing remain unclear. This study aimed to investigate and discover quality markers (Q-markers) related to the clinical efficacy of processed MO. The different processed products of MO have different clinical applications, although they originate from the same medicinal herb. The active chemical components from raw and processed MO that protect against reproductive oxidative stress damage were evaluated. The processed products of MO were prepared by different processing methods. The changes in oligosaccharides during processing were characterized by high-performance liquid chromatography with an evaporative light scattering detector (HPLC-ELSD), and the differential components in raw and processed MO were analyzed using SA, HCA, PCA, and OPLS-DA methods. The protective effects of raw and processed MO oligosaccharides (MOOs) against reproductive oxidative stress damage were evaluated based on the spermatic number, spermatic survival rate, abnormal sperm ratio and serum biochemical indicators in cyclophosphamide-induced (CTX-induced) male mice. The results revealed that processed MOOs had better pharmacological effects than raw MOOs. Therefore, gray correlation analysis (GRA) and the technique for order preference by similarity to ideal solution (TOPSIS) methods were used to investigate the spectrum-effect relationships of MOOs. Spectrum-effect relationship analysis revealed that all of the characteristic peaks contributed to the treatment of reproductive oxidative stress damage, and the relative correlation degrees were greater than 0.6. Among them, the peaks 1 F-fructofuranosylnystose, nystose, and 1-kestose and the peaks X2-X5, which were most closely correlated to the treatment of reproductive oxidative stress damage, were identified as inulin-oligosaccharides and inulo-oligosaccharides, respectively. It was proposed that these constituents could be considered Q-markers for processed products of MO. Thus, this study aimed to explore chemical markers that correlate with the clinical efficacy of processed MO.


Assuntos
Medicamentos de Ervas Chinesas , Morinda , Animais , Cromatografia Líquida de Alta Pressão , Masculino , Medicina Tradicional Chinesa , Camundongos , Oligossacarídeos
7.
Fitoterapia ; 153: 104991, 2021 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-34265404

RESUMO

Morinda officinalis How was widely applied to alleviate symptom like impotence, menstrual disorders, osteoporosis, and rheumatoid arthritis. To expand resources usage, phytochemistry of the aerial parts was studied and the structures of compounds were elucidated based on NMR, HRESIMS, IR and UV. Moreover, the anti-inflammatory effect and possible mechanism were investigated by Griess kit, RT-qPCR, ELISA, western blot and molecular docking on LPS-induced inflammation in RAW 264.7 cells. Herein, we isolated and identified 16 iridoid derivatives, including seven new iridoids officinaloside A-G (1-7) and nine known iridoids. All the compounds were safe to RAW 264.7 cells. Luckily, compounds 5 and 6 showed inhibitory effect on production of NO, and decreased the expression of inflammatory cytokines at mRNA and protein levels in a dose-dependent way. The possible mechanism of their anti-inflammation may be the affinity interaction between 5 with COX-2 protein, and 6 with iNOS protein. Overall, compounds 5 and 6 exert promising effects in inhibiting inflammatory cytokines, indicating that they could be used as lead compounds for developing health products or clinical practice for inflammation, which provides a scientific basis for further sustainable development and usage of the aerial parts of Morinda officinalis How.


Assuntos
Anti-Inflamatórios/farmacologia , Iridoides/farmacologia , Morinda/química , Animais , Anti-Inflamatórios/isolamento & purificação , China , Citocinas/metabolismo , Iridoides/isolamento & purificação , Camundongos , Simulação de Acoplamento Molecular , Estrutura Molecular , Compostos Fitoquímicos/isolamento & purificação , Compostos Fitoquímicos/farmacologia , Componentes Aéreos da Planta/química , Células RAW 264.7
8.
Am J Chin Med ; 49(3): 577-608, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33730992

RESUMO

Most of traditional Chinese herbal medicine (TCHM) substances come from medicinal plants, among which oligosaccharides have gradually attracted widespread attention at home and abroad due to their important biological activities and great medicinal potential. Numerous in vitro and in vivo experiments exhibited that oligosaccharides possess various activities, such as antitumor, anti-oxidation, modulate the gut microflora, anti-inflammatory, anti-infection, and immune-regulatory activities. Generally, biological activities are closely related to chemical structures, including molecular weight, monosaccharide composition, glycosidic bond connection, etc. The structural analysis of oligosaccharides is an important basis for studying their structure-activity relationship, but the structural diversity and complexity of carbohydrate compounds limit the study of oligosaccharides activities. Understanding the structures and biological functions of oligosaccharides is important for the development of new bioactive substances with natural oligosaccharides. This review provides a systematic introduction of the current knowledge of the chemical structures and biological activities of oligosaccharides. Most importantly, the reported chemical characteristics and biological activities of the famous TCHM oligosaccharides were briefly summarized, including Morinda officinalis, Rehmannia glutinosa, Arctium lappa, Polygala tenuifolia, Panax ginseng, Lycium barbarum and Astragalus membranaceus. TCHM oligosaccharides play an important role in nutrition, health care, disease diagnosis and prevention as well as have broad application prospects in the field of medicine.


Assuntos
Medicamentos de Ervas Chinesas/química , Medicamentos de Ervas Chinesas/farmacologia , Medicina Tradicional Chinesa , Oligossacarídeos/química , Oligossacarídeos/farmacologia , Anti-Infecciosos , Anti-Inflamatórios , Antineoplásicos Fitogênicos , Antioxidantes , China , Humanos , Fatores Imunológicos , Peso Molecular , Oligossacarídeos/isolamento & purificação , Relação Estrutura-Atividade
10.
Front Oncol ; 11: 791912, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-35127498

RESUMO

BACKGROUND: Gastric cancer with only peritoneal lavage cytology (GC-CY1) is a special type of gastric cancer, which is defined as stage IV. The pre-treatment systemic immune-inflammation index (SII) and prognostic nutritional index (PNI) are representative blood indexes of systemic inflammatory response and nutritional status. However, the clinical significance of combined detection of these two indexes is still unclear. This study aims to evaluate the clinical value of the new score system by combining SII and PNI (SII-PNI score) as a predictor of efficacy and prognosis after neoadjuvant intraperitoneal and systemic (NIPS) paclitaxel combined with Apatinib conversion therapy for GC-CY1 patients. METHODS: We registered a prospective clinical study involving 36 GC-CY1 patients from April 2018 to August 2019 (NCT03718624). All patients underwent re-laparoscopic exploration after treatment. According to free cancer cells (FCCs) status, these patients were divided into FCCs group and non-FCCs group. The SII-PNI score ranged from 0 to 2 as follows: score of 2, high SII (≥512.1) and low PNI (≤52.9); score of 1, either high SII or low PNI; score of 0, no high SII nor low PNI. RESULTS: All patients underwent re-laparoscopic exploration after 3 cycles of NIPS paclitaxel and Apatinib conversion therapy. Among them, 28 cases (77.78%) were in non-FCCs group, and 8 cases (22.22%) were in FCCs group. The SII-PNI score of non-FCCs patients was significantly lower than that of FCCs patients (p=0.041). The prognosis of patients with high SII-PNI score was significantly worse than that of patients with low SII-PNI score (p<0.001). Multivariate analysis showed that SII-PNI score was an independent prognostic factor for predicting overall survival and progression-free survival (p=0.001, 0.002). CONCLUSION: Pretreatment SII-PNI score is an important predictor for the efficacy of GC-CY1 patients after NIPS paclitaxel combined with Apatinib conversion therapy, which can help to identify high-risk groups and predict prognosis.

11.
Environ Res ; 190: 110020, 2020 11.
Artigo em Inglês | MEDLINE | ID: mdl-32777273

RESUMO

Methylmercury (MeHg) is a ubiquitous environmental toxicant with neurotoxic effects. Although its neurotoxicity had been more studied, the role of gut microbiota remains unclear. In this study, adult zebrafish and larvae were exposed to MeHgCl at the dose of 0, 1 and 10 ng/mL. MeHgCl exposure impaired the locomotor activity via upregulation of apoptosis and autophagy related genes in the brain. Intestinal and cerebral metabolome indicated that phosphatidylinositol signaling system and inositol phosphate metabolism pathways were significantly impacted in adult zebrafish upon MeHgCl exposure. The levels of myo-inositol (MI) in the intestine and brain were decreased and positively correlated. 16 S rRNA sequencing data from adult zebrafish showed that MeHgCl exposure also shifted the structure of gut microbiota and reduced the relative abundance of Bacteroidetes and Proteobacteria, which were further identified at genus level as Aeromonas and Cetobacterium. Further functional analysis indicated that MeHgCl disrupted inositol phosphate metabolism of gut microbiota. Notably, MI supplementation restored the impairment of locomotor activity and inhibited the upregulation of apoptosis and autophagy related genes, such as bcl-2 and atg5. Thus, this study not only revealed the key role of gut microbiota in MeHgCl-mediated neurotoxicity but also gave new insights into antagonizing its toxicity.


Assuntos
Compostos de Metilmercúrio , Animais , Inositol , Intestinos , Locomoção , Compostos de Metilmercúrio/toxicidade , Peixe-Zebra
12.
J Ethnopharmacol ; 255: 112556, 2020 Jun 12.
Artigo em Inglês | MEDLINE | ID: mdl-31926984

RESUMO

ETHNOPHARMACOLOGICAL RELEVANCE: Sweroside, an iridoid derived from Traditional Chinese Medicine, is an active component in Swertia pseudochinensis Hara. Swertia pseudochinensis Hara is first recorded in "Inner Mongolia Chinese Herb Medicine"and is considered as a folk medicine for treating hepatitis in northern China. AIM OF THE STUDY: This study sought to elucidate the role of sweroside in high fat diet induced obesity and fatty liver by using mouse model and investigated the primary molecular mechanism via transcriptomics analysis. MATERIALS AND METHODS: C57BL/6 mice were fed high-fat diet (HFD) for 14 weeks to induce obesity, hyperglycemia, and fatty liver. These mice were subsequently treated with HFD alone or mixed with sweroside (at a daily dosage of 60 mg per kg of BW, 120 mg per kg of BW and 240 mg per kg of BW) for 6 weeks. BW and food intake was monitored weekly. Biochemical and pathological analysis were conducted to investigate the effect of sweroside on NAFLD. RNA-sequence and RT-qPCR analysis were performed to analyze the potential mechanism. RESULTS: The mice treated with sweroside were resistant to HFD-induced body weight gain, insulin resistance and hepatic steatosis. Ingenuity pathway analysis (IPA) demonstrated that hepatic gene networks related to lipid metabolism and inflammatory response were down-regulated in the HFD + sweroside group. PPAR-ɑ was located in the center of the hepatic gene network, and the significantly altered genes were CD36 and FGF21, which are related to hepatic inflammation and lipid metabolism. Consistently, upstream-regulators analysis revealed that the main enriched upstream-regulator was PPAR-ɑ. CONCLUSION: Our results indicate that sweroside may ameliorate obesity with fatty liver via the regulation of lipid metabolism and inflammatory responses. The beneficial effects of sweroside might be closely associated with the regulation of PPAR-α.


Assuntos
Dieta Hiperlipídica , Mediadores da Inflamação/metabolismo , Glucosídeos Iridoides/farmacologia , Metabolismo dos Lipídeos/efeitos dos fármacos , Fígado/efeitos dos fármacos , Hepatopatia Gordurosa não Alcoólica/prevenção & controle , Obesidade/prevenção & controle , Aumento de Peso/efeitos dos fármacos , Animais , Antígenos CD36/genética , Antígenos CD36/metabolismo , Modelos Animais de Doenças , Fatores de Crescimento de Fibroblastos/genética , Fatores de Crescimento de Fibroblastos/metabolismo , Redes Reguladoras de Genes , Células HEK293 , Humanos , Resistência à Insulina , Metabolismo dos Lipídeos/genética , Fígado/metabolismo , Fígado/patologia , Masculino , Camundongos Endogâmicos C57BL , Hepatopatia Gordurosa não Alcoólica/etiologia , Hepatopatia Gordurosa não Alcoólica/metabolismo , Hepatopatia Gordurosa não Alcoólica/patologia , Obesidade/etiologia , Obesidade/metabolismo , Obesidade/fisiopatologia , PPAR alfa/genética , PPAR alfa/metabolismo , Transcriptoma
13.
J Agric Food Chem ; 67(26): 7304-7314, 2019 Jul 03.
Artigo em Inglês | MEDLINE | ID: mdl-31180668

RESUMO

Morindae Officinalis Radix (MOR), the dried root of Morinda officinalis F.C. How (Rubiaceae), is a popular food supplement in southeastern China for bone protection, andrological, and gynecological healthcare. In clinical use, 3-4 year old MOR is commonly used and the xylem is sometimes removed. However, there is no scientific rationale for these practices so far. In this study, metabolomics and glycomics were integrated using multiple chromatographic and mass spectrometric techniques coupled with multivariate statistical analysis to investigate the qualitative and quantitative variations of secondary metabolome and glycome in different growth years (1-7 years) and tissues (xylem and cortex) of MOR. The results showed that various types of bioactive components reached a maximum between 3 and 4 years of growth and that the xylem contained more potentially toxic constituents but less bioactive components than the cortex. This study provides the chemical basis for the common practice of using 3-4 year old MOR with the xylem removed.


Assuntos
Medicamentos de Ervas Chinesas/química , Morinda/crescimento & desenvolvimento , Raízes de Plantas/química , China , Medicamentos de Ervas Chinesas/metabolismo , Glicômica , Metabolômica , Morinda/química , Morinda/metabolismo , Raízes de Plantas/crescimento & desenvolvimento , Raízes de Plantas/metabolismo , Fatores de Tempo , Xilema/química , Xilema/metabolismo
14.
Zhongguo Zhong Yao Za Zhi ; 44(7): 1295-1304, 2019 Apr.
Artigo em Chinês | MEDLINE | ID: mdl-31090284

RESUMO

Turpinia species have been used as local Chinese medicines. It has been widely concerned about their antibacterial and anti-inflammatory effects. Modern studies showed that the chemical constituents of Turpina species include flavonoids, triterpenoids, megastigans and phenoli acids. Its pharmacological research mainly focused on antibacterial, anti-inflammatory, antioxidant, analgesic, and immuneregulation effect. In this paper, the chemical compositions and pharmacological activities of Turpinia species were summarized, in order to provide scientific basis for the further development and utilization of Turpinia species.


Assuntos
Medicamentos de Ervas Chinesas/farmacologia , Magnoliopsida/química , Compostos Fitoquímicos/análise , Antioxidantes , Flavonoides , Compostos Fitoquímicos/farmacologia , Triterpenos
15.
Int J Biol Macromol ; 128: 167-175, 2019 May 01.
Artigo em Inglês | MEDLINE | ID: mdl-30682476

RESUMO

Ultrahigh methoxylated pectin (UHMP) was prepared by esterification of citrus pectin in absolute methanol at 60 °C for 12 h, whereby its methoxylation degree was increased from 63.18 ±â€¯0.08% to 91.20 ±â€¯0.13%, and its molecular weight was reduced from 64,400 g/mol to 15,000 g/mol. Structural modifications improved UHMP solubility by over 5%(w/v) and resulted in a flat reduced viscosity profile that was slightly affected by pectin concentration increase and pH change. Interfacial activity of UHMP was improved since most of the galacturonic acid (GalA) units had one methyl group and two hydroxyl groups. Dynamic interfacial tension analysis indicated that UHMP was adsorbed at O/W interface faster than mother pectin with a better capacity to reduce the initial interfacial tension. UHMP emulsions prepared by phase inversion method at different solid-to-oil ratios (20-50%) had a small Z-average size of approximately 400 nm with a creaming index (CI) of 17-20%. During long-term storage (56 days), droplet size and CI were monitored every 7 days, and results suggested that UHMP emulsions were stable. UHMP emulsions showed good pH stability after 14-days storage in a wide pH range of 2-8 without droplet coalescence. Thermal treatment at 85 °C accelerated the flotation of large droplets but did not break droplets.


Assuntos
Emulsões , Pectinas/química , Cromatografia por Troca Iônica , Emulsões/química , Concentração de Íons de Hidrogênio , Metilação , Polissacarídeos/química , Solubilidade , Tensão Superficial , Termodinâmica , Viscosidade
16.
Artigo em Chinês | WPRIM | ID: wpr-774556

RESUMO

Turpinia species have been used as local Chinese medicines. It has been widely concerned about their antibacterial and anti-inflammatory effects. Modern studies showed that the chemical constituents of Turpina species include flavonoids, triterpenoids, megastigans and phenoli acids. Its pharmacological research mainly focused on antibacterial, anti-inflammatory, antioxidant, analgesic, and immuneregulation effect. In this paper, the chemical compositions and pharmacological activities of Turpinia species were summarized, in order to provide scientific basis for the further development and utilization of Turpinia species.


Assuntos
Antioxidantes , Medicamentos de Ervas Chinesas , Farmacologia , Flavonoides , Magnoliopsida , Química , Compostos Fitoquímicos , Farmacologia , Triterpenos
17.
J Med Chem ; 61(24): 11074-11100, 2018 12 27.
Artigo em Inglês | MEDLINE | ID: mdl-30384606

RESUMO

A HTS campaign identified compound 1, an excellent hit-like molecule to initiate medicinal chemistry efforts to optimize a dual ROCK1 and ROCK2 inhibitor. Substitution (2-Cl, 2-NH2, 2-F, 3-F) of the pyridine hinge binding motif or replacement with pyrimidine afforded compounds with a clean CYP inhibition profile. Cocrystal structures of an early lead compound were obtained in PKA, ROCK1, and ROCK2. This provided critical structural information for medicinal chemistry to drive compound design. The structural data indicated the preferred configuration at the central benzylic carbon would be ( R), and application of this information to compound design resulted in compound 16. This compound was shown to be a potent and selective dual ROCK inhibitor in both enzyme and cell assays and efficacious in the retinal nerve fiber layer model after oral dosing. This tool compound has been made available through the AbbVie Compound Toolbox. Finally, the cocrystal structures also identified that aspartic acid residues 176 and 218 in ROCK2, which are glutamic acids in PKA, could be targeted as residues to drive both potency and kinome selectivity. Introduction of a piperidin-3-ylmethanamine group to the compound series resulted in compound 58, a potent and selective dual ROCK inhibitor with excellent predicted drug-like properties.


Assuntos
Inibidores de Proteínas Quinases/química , Inibidores de Proteínas Quinases/farmacologia , Quinases Associadas a rho/antagonistas & inibidores , Administração Oral , Animais , Disponibilidade Biológica , Cristalografia por Raios X , Inibidores do Citocromo P-450 CYP2C9/química , Inibidores do Citocromo P-450 CYP2C9/farmacologia , Inibidores do Citocromo P-450 CYP3A/química , Inibidores do Citocromo P-450 CYP3A/farmacologia , Desenho de Fármacos , Avaliação Pré-Clínica de Medicamentos/métodos , Meia-Vida , Humanos , Camundongos Endogâmicos C57BL , Traumatismos do Nervo Óptico/tratamento farmacológico , Traumatismos do Nervo Óptico/patologia , Ratos Sprague-Dawley , Relação Estrutura-Atividade , Quinases Associadas a rho/química
18.
Zhongguo Zhong Yao Za Zhi ; 42(20): 3938-3944, 2017 Oct.
Artigo em Chinês | MEDLINE | ID: mdl-29243431

RESUMO

To study sesquiterpenes with anti-metastasis breast cancer activity from Chloranthus henryi, ten sesquiterpenes ,zedoarofuran (1), chlorajapolide D (2), 4ß, 8ß-dihydroxy-5α(H)-eudesm-7(11)-en-8, 12-olide (3), curcolonol (4), lasianthuslactone A (5), chlomultin C (6), (1E,4Z)-8-hydroxy-6-oxogermacra-1(10), 4, 7(11) -trieno-12, 8-lactone (7), shizukanolide E (8) , shizukanolide F (9) , 9α-hydroxycurcolonol (10), and five bis-sesquiterpenes, shizukaol B (11), shizukaol C (12) , cycloshizukaol A (13) , sarcandrolide B (14) , henriol A(15), were isolated by using different kinds of column chromatography methods from the ethyl acetate part of Ch.henryi and their structures were identified based on spectroscopic methods. Compounds 2, 8, 9, and 10 were obtained from the genus Chloranthus for the first time. Compounds 2, 5, 8-10, 12,and 14 were obtained from this plant for the first time. Some isolated compounds were subjected to evaluate the anti-metastasis breast cancer activity by using pharmacological methods, and only compounds 4, 11, and 12 were potent active.


Assuntos
Antineoplásicos Fitogênicos/farmacologia , Neoplasias da Mama/patologia , Sesquiterpenos/farmacologia , Traqueófitas/química , Antineoplásicos Fitogênicos/isolamento & purificação , Neoplasias da Mama/tratamento farmacológico , Linhagem Celular Tumoral , Humanos , Estrutura Molecular , Compostos Fitoquímicos/isolamento & purificação , Compostos Fitoquímicos/farmacologia , Sesquiterpenos/isolamento & purificação
19.
Front Immunol ; 8: 905, 2017.
Artigo em Inglês | MEDLINE | ID: mdl-28824631

RESUMO

Morinda officinalis is beneficial for the treatment of inflammatory bowel disease (IBD). The hairy root with higher genetic and biochemical stability cultured from M. officinalis might have similar effects to treat IBD. In this study, the main chemical composition of the root extracts of M. officinalis (MORE) native plant and the hairy root extract of M. officinalis (MOHRE) was compared by quantitative HPLC. The difference of their therapeutic effects and potential mechanism was evaluated using 3% dextran sodium sulfate-induced chronic colitis in mice and T lymphocytes in vitro. The results found that MOHRE possesses many specific peaks unobserved in the chromatogram of native plant. The content of iridoids in the MORE (3.10%) and MOHRE (3.01%) is somewhat similar but quite different for their anthraquinones's content (0.14 and 0.66%, respectively). Despite all this, treatment with both MORE and MOHRE significantly attenuated the symptoms of colitis, including diarrhea, body weight loss, colon shortening, histological damage, and decreased inflammatory cytokine levels. In addition, they dose-dependently increased the apoptosis of T lymphocyte in vivo and in vitro. And, the differences for treatment effects on ulcerative colitis (UC) between them both in this study were mostly insignificant. The results demonstrated that the effects of MORE and MOHRE for the treatment of UC are similar, although there are a few difference on their chemical composition, indicating the hairy root cultured from M. officinalis might be able to replace its native plant on treatment of UC. The successful derivation of a sustainable hairy root culture provides a model system to study the synthetic pathways for bioactive metabolites, which will make the use of bioreactors to largely produce traditional medicine become reality.

20.
Neurology ; 88(1): 78-86, 2017 Jan 03.
Artigo em Inglês | MEDLINE | ID: mdl-27913699

RESUMO

OBJECTIVE: To investigate the risk and genetic association of oxcarbazepine-induced cutaneous adverse reactions (OXC-cADRs), including Stevens-Johnson syndrome/toxic epidermal necrolysis (SJS/TEN), in Asian populations (Chinese and Thai). METHODS: We prospectively enrolled patients with OXC-cADRs in Taiwan and Thailand from 2006 to 2014, and analyzed the clinical course, latent period, drug dosage, organ involvement, complications, and mortality. We also investigated the carrier rate of HLA-B*15:02 and HLA-A*31:01 of patients with OXC-cADRs and compared to OXC-tolerant controls. The incidence of OXC-SJS/TEN was compared with carbamazepine (CBZ)-induced SJS/TEN according to the nationwide population dataset from the Taiwan National Health Insurance Research Database. RESULTS: We enrolled 50 patients with OXC-cADRs, including 20 OXC-SJS/TEN and 6 drug reaction with eosinophilia and systemic symptoms, of Chinese patients from Taiwan and Thai patients from Thailand. OXC-cADRs presented with less clinical severity including limited skin detachment (all ≦5%) and no mortality. There was a significant association between HLA-B*15:02 and OXC-SJS (p = 1.87 × 10-10; odds ratio 27.90; 95% confidence interval [CI] 7.84-99.23) in Chinese and this significant association was also observed in Thai patients. The positive and negative predictive values of HLA-B*15:02 for OXC-SJS/TEN were 0.73% and 99.97%, respectively. HLA-A*31:01 was not associated with OXC-cADRs. The incidence and mortality of OXC-SJS/TEN was lower than CBZ-STS/TEN in new users (p = 0.003; relative risk 0.212; 95% CI 0.077-0.584). CONCLUSIONS: Our findings suggest that HLA-B*15:02 is significantly associated with OXC-SJS in Asian populations (Chinese and Thai). However, the severity and incidence of OXC-SJS/TEN are less than that of CBZ-SJS/TEN. The need for preemptive HLA-B*15:02 screening should be evaluated further.


Assuntos
Anticonvulsivantes/efeitos adversos , Carbamazepina/análogos & derivados , Antígenos HLA-B/genética , Síndrome de Stevens-Johnson , Adolescente , Adulto , Idoso , Idoso de 80 Anos ou mais , Povo Asiático , Carbamazepina/efeitos adversos , Criança , Pré-Escolar , Epilepsia/tratamento farmacológico , Feminino , Frequência do Gene , Predisposição Genética para Doença/genética , Genótipo , Antígenos HLA-A/genética , Humanos , Incidência , Masculino , Metanálise como Assunto , Pessoa de Meia-Idade , Programas Nacionais de Saúde/estatística & dados numéricos , Oxcarbazepina , Estudos Prospectivos , Estudos Retrospectivos , Estatísticas não Paramétricas , Síndrome de Stevens-Johnson/epidemiologia , Síndrome de Stevens-Johnson/etiologia , Síndrome de Stevens-Johnson/genética , Taiwan , Tailândia , Adulto Jovem
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