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OBJECTIVE: To investigate the feasibility and effectiveness of ATAS acupuncture (Acupoints-Time-Space Acupuncture) as a non-pharmacological intervention to prevent or relieve chemotherapy-induced fatigue in breast cancer patients undergoing taxane chemotherapy. METHODS: A pilot study in Kunming center with the aim of evaluating 40 patients randomized to 3 groups: ATAS, sham and non-acupuncture with an unequal randomization of 2:1:1. Participants with stage I-III breast cancer were scheduled to receive adjuvant EC4P4 chemotherapy. Participants in the ATAS and sham acupuncture arms received 20 sessions of acupuncture over 20 weeks, non-acupuncture arm received usual care. Evaluation scales, including VAS-F, MFI-20, HDAS, ISI, and blood samples were collected at four timepoints (T1-T4). mRNA sequencing was performed to detect the mechanism of acupuncture. RESULTS: A total of 581 sessions of acupuncture were performed on patients in the acupuncture group. There was no difference between the three groups in terms of clinical characteristics. Patients randomized to ATAS acupuncture had improved symptoms including fatigue, anxiety and insomnia during the whole process of chemotherapy compared with the other two groups. The VAS-F score of ATAS acupuncture group was decreased compared with non-acupuncture group (P=0.004). The score of MFI-20 in ATAS acupuncture group was kept at low level, while the other two groups' scores kept climbing during chemotherapy (P=0.016; P=0.028, respectively). The mechanism of ATAS acupuncture which reduced fatigue and depression may be related to ADROA1, by regulating cGMP/PKG pathway. CONCLUSION: This pilot study has demonstrated that ATAS acupuncture can significantly reduce fatigue induced by chemotherapy. TRIAL REGISTRATION: Chinese Clinical Trials Registry, ChiCTR-IPR-17,013,652, registered Dec 3, 2017. http://www.chictr.org.cn/. PROTOCOL VERSION: Version 3.2 dated from 2018/04/20.
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The space-time acupuncture is a new needling method, summarized by professor ZHU Mian-sheng on the base of the inheritance of four time-acupuncture method in ancient time and the absorption of the European medical culture idea, aiming to the application of the combination of time acupoints and space acupoints. Through constructing the internal and external qi field, the field effect of human body self-healing function is mobilized. The space-time acupuncture of the eightfold method of the sacred tortoise is one of the four methods, on the base of the acquired Wenwang eight diagrams and the night numbers of Luoshu diagrams, and in match with the eight confluent points. It is a special structure of "number, diagram and acupoint". The authors explain systematically the space-time acupuncture of the eightfold method of the sacred tortoise in the aspects of the opening of time acupoints and composition of space acupoints as well as the characteristics of its clinical operation so as to elaborate the essential composition and the feature of clinical application of such method. Moreover, professor ZHU Mian-sheng's innovation is introduced besides inheriting the ancient experience and the theoretic connotation is explored on the spatial acupoint corresponding to the time acupuncture of ancient eightfold method of the sacred tortoise.
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Terapia por Acupuntura , Acupuntura , Meridianos , Tartarugas , Pontos de Acupuntura , Animais , HumanosRESUMO
Schistosomiasis is a notable neglected tropical disease caused by trematodes that infect mainly the intestines, bladder, and liver. Because of the unavailability of a schistosomiasis vaccine, control of the disease depends mainly on chemotherapy. Praziquantel (PZQ), which is active against all schistosome species (Among the five major species of human schistosomes-S. mansoni, S. haematobium, S. japonicum, S. intercalatum, and S. mekongi, S. mansoni is the most prevalent) as well as probably their hybrids and the recommended drug by the World Health Organization for schistosomiasis treatment at either the community or individual level, has become the exclusive drug because of its low cost and efficacy against the adult form of all schistosome species. In view of rapid re-infection following treatment and concern about the development of tolerance and/or resistance to praziquantel, there is an urgent need for research and development of novel drugs for the prevention and treatment of schistosomiasis. This comprehensive review shall attempt to briefly review the recent advances in the synthesis of antischistosomal drugs and agents in the literature from 1990s to now, particularly focusing on the context of potential development of antischistosomal agents. It shall be of interest for the pharmacologist.
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Schistosoma/efeitos dos fármacos , Esquistossomose/tratamento farmacológico , Esquistossomicidas/síntese química , Esquistossomicidas/farmacologia , Animais , Humanos , Estrutura Molecular , Esquistossomicidas/químicaRESUMO
Three types of lanthanide complexes based on the tetrazole-1-acetic acid ligand and the 2,2'-bipyridine coligand were prepared and characterized by single-crystal X-ray diffraction, IR spectroscopy, and elemental analyses; the formulas of these complexes are [Ln2(1-tza)4(NO3)2(2,2'-bipy)2] (Ln = Sm (1), Eu (2), Gd (3), Tb (4), Dy (5)), [Dy2(1-tza)4Cl2(2,2'-bipy)2] (6), and [Yb2(1-tza)4(NO3)2(2,2'-bipy)2] (7) (1-tza = tetrazole-1-acetate and 2,2'-bipy = 2,2'-bipyridine). They are dinuclear complexes possessing similar structures but different lanthanide(III) ion coordination geometries because of the distinction of peripheral anions (such as NO3(-) and Cl(-)) and the effect of lanthanide contraction. The variable-temperature magnetic susceptibilities of 1-6 were measured. Both Dy(III) complexes (5 and 6) display field-induced single-molecule magnet behaviors. Ab initio calculations revealed that the Dy(III) complex 6 possesses a more anisotropic Dy(III) ion in comparison to that in 5. The room-temperature photoluminescence spectra of Sm(III) (1), Eu(III) (2), Tb(III) (4), and Dy(III) (5 and 6) complexes exhibit strong characteristic emissions in the visible region, whereas the Yb(III) (7) complex shows near-infrared (NIR) luminescence.
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Direct metal-free C-4-selective indolation of pyridines is achieved for the first time using TEMPO and (Boc)2O. A variety of substituents on both indoles and pyridines are tolerated to give 3-(pyridin-4-yl)-1H-indole derivatives in moderate to excellent yields. This finding provides a novel approach for developing metal-free C-H functionalization of pyridines.
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Carbonatos/química , Óxidos N-Cíclicos/química , Indóis/química , Metais/química , Piridinas/química , Alquilação , Oxirredução , EstereoisomerismoRESUMO
The total synthesis of the alkaloid (-)-chaetominine (1) has been achieved in four steps with an overall yield of 33.4%. Key features of our strategy include a one-pot cascade indole epoxidation - epoxide ring-opening cyclization - lactamization reaction sequence, and the use of a nitro group as a latent amino group for the one-pot construction of the quinazolinone ring. This constitutes a step economical, redox economical and protecting group-free total synthesis.
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Alcaloides Indólicos/síntese química , Alcaloides Indólicos/química , Conformação Molecular , EstereoisomerismoRESUMO
A general and efficient method for the cross-coupling of indoles with ß-keto esters by using TEMPO/CuSO4·5H2O in air as oxidant has been developed. This reaction features high functional-group compatibility and an excellent selectivity. This methodology provides an alternative approach for the ketonization-olefination of indoles in moderate to good yields.
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Alcenos/síntese química , Cobre/química , Indóis/química , Cetonas/síntese química , Alcenos/química , Catálise , Óxidos N-Cíclicos/química , Ésteres/química , Cetonas/química , Estrutura Molecular , EstereoisomerismoRESUMO
A simple, convenient and efficient metal-free catalyzed oxidative trimeric reaction of indoles toward a variety of 2-(1H-indol-3-yl)-2,3'-biindolin-3-one derivatives in moderate to excellent yields has been developed. This transformation proceeds via a tandem oxidative homocoupling reaction by using TEMPO in air as an environmentally benign oxidant. This methodology provides an alternative approach for the direct generation of all-carbon quaternary centers at the C3 position of indoles.
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Biomimética/métodos , Óxidos N-Cíclicos/química , Indóis/química , Oxidantes/química , Catálise , Indóis/síntese química , Modelos Moleculares , OxirreduçãoRESUMO
RuCl3·3H2O was found to be an effective catalyst for reactions of indoles, 2-methylthiophene, and 2-methylfuran with aldehydes to afford the corresponding bis(indolyl)methanes, bis(thienyl)methanes, and bis(fur-2-yl)methanes in moderate to excellent yields. Experimental results indicated that mono(indolyl)methanol is not the reaction intermediate under these reaction conditions.
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Metano/análogos & derivados , Metano/síntese química , Rutênio/química , Catálise , Metano/química , Estrutura MolecularRESUMO
A general approach to (4S,5S)-4-benzyloxy-5-hydroxy-N-(4-methoxybenzyl) amides 10 based on a diastereoselective reduction of (5S,6RS)-6-alkyl-5-benzyloxy-6-hydroxy-2-piperidinones 6 and their tautomeric ring-opened keto amides 7 is described. The reduction with L-Selectride at -20 degrees C to room temperature afforded the products 10 in excellent yields and moderate to high syn-diastereoselectivities.
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Amidas/síntese química , Boranos/química , Piperidinas/química , Oxirredução , EstereoisomerismoRESUMO
An analytical HPLC method using CHIREX (S)-LEU/(S)-alpha-NEA column was developed for the determination of the enantiomeric excesses of N-protected (S)-3-hydroxyglutarimides. Using this method, detailed studies on the base-promoted ring-expansion reaction of the amidolactones, derived from l-glutamic acid, were undertaken.
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Piperidonas/química , Cromatografia Líquida de Alta Pressão , Hidroxilação , Estrutura Molecular , EstereoisomerismoRESUMO
A general approach to (5S,6R)-6-alkyl-5-benzyloxy-2-piperidinones based on the regio- and diastereoselective reductive alkylation of (S)-3-benzyloxyglutarimide 7 is described. This method opens an entrance to chiral nonracemic substituted 3-piperidinols. The versatility of the method is illustrated by the asymmetric syntheses of neurokinin substance P receptor antagonist L-733,061 (ent-1), (-)-deoxocassine (4), and an inhibitor of HIV proteases (5a).
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Técnicas de Química Combinatória , Antagonistas dos Receptores de Neurocinina-1 , Piperidinas/síntese química , Substância P/antagonistas & inibidores , Catálise , Inibidores da Protease de HIV/síntese química , Inibidores da Protease de HIV/farmacologia , Estrutura Molecular , Piperidinas/farmacologia , EstereoisomerismoRESUMO
[reaction: see text] Selective and potent neurokinin substance P receptor antagonists (+)-L-733, 060 (1) and (+)-CP-99, 994 (2) have been synthesized starting from a new (3S)-piperidinol synthon derived from l-glutamic acid. The methods featured a C-2 regioselective reduction of glutarimide (9), Lewis acid-promoted Si to C-2 phenyl group migration of 10, and stereoselective reduction of acetylated oxime 19 as the key steps.