Zhongguo Zhong Yao Za Zhi
September 2024
This study aims to investigate the effects of Linggui Zhugan Decoction(LGZGD) on myocardial fibrosis(MF) and the Lats1/Yap signaling pathway in mice after myocardial infarction(MI), exploring its role and mechanism in inhibiting MF. The MI-induced ischemic mouse model was established by left anterior descending coronary artery ligation, followed by continuous intervention for six weeks. Doppler ultrasound imaging-system of small animals was used to detect left ventricular ejection fraction(LVEF), left ventricular fractional shortening(LVFS), left ventricular internal diameter at end-systole(LVIDs), and left ventricular internal diameter at end-diastole(LVIDd).
View Article and Find Full Text PDFObjective: The objective of this study was to evaluate the efficacy and safety of Formula in the treatment of coronary microvascular disease.
Methods: We conducted a randomized, double-blind, placebo-controlled study simultaneously in two hospitals, consisting of 80 participants. Using a random number table, we assigned patients to the treatment and control groups.
Mycoplasma pneumoniae pneumonia (MPP) often overlaps with the clinical manifestations and chest imaging manifestations of other types of community-acquired pneumonia (CAP). We retrospectively analyzed the clinical and imaging data of a group of patients with CAP, summarized their clinical and imaging characteristics, and discussed the diagnostic significance of their certain HRCT findings. The HRCT findings of CAP researched in our study included tree-in-bud sign (TIB), ground-glass opacity (GGO), tree fog sign (TIB + GGO), bronchial wall thickening, air-bronchogram, pleural effusion and cavity.
View Article and Find Full Text PDFIntroduction: In immunotherapy, antibodies are activated to block immune checkpoints, resist tumour immunosuppression, shrink tumours and prevent a recurrence. As the science behind tumour immunotherapy continuously develops and improves, neoadjuvant immunotherapy bears more prominent advantages: antigen exposure not only enhances the degree of tumour-specific T-cell response but also prolongs the duration of actions. In this study, we evaluated the efficacy and safety of McKeown minimally invasive oesophagectomy (McKeown MIO) following neoadjuvant immunotherapy combined with chemotherapy (NICT) in patients with locally advanced oesophageal cancer (OC).
View Article and Find Full Text PDFMultimed Tools Appl
February 2023
CT diagnosis has been widely used in clinic because of its special diagnostic value. The image resolution of CT imaging system is constrained by X-ray focus size, detector element spacing, reconstruction algorithm and other factors, which makes the generated CT image have some problems, such as low contrast, insufficient high-frequency information, poor perceptual quality and so on. To solve the above problems, a super-resolution reconstruction method of CT image based on multi-scale attention mechanism is proposed.
View Article and Find Full Text PDF(Roxb.) DC. (ZN), with strong effects of anti-inflammation and antioxidant activities is treated as a core herb in traditional Chinese medicine (TCM) preparation for treating stomachache, toothache, and rheumatoid arthritis.
View Article and Find Full Text PDFObjective: Hyperglycemia is often observed in the patients after acute stroke. This study aims to elucidate the potential effect and mechanism of hyperglycemia by screening microRNAs expression in intracerebral hemorrhage mice.
Methods: We employed the collagenase model of intracerebral hemorrhage.
Background: Compared to open esophagectomy (OE), minimally invasive esophagectomy (MIE) is associated with lower morbidity and mortality. However, lymph node (LN) dissection around the recurrent laryngeal nerve (RLN) is still an important factor that affects the length of the learning curve of MIE. This study aims to evaluate the surgical outcomes of the first nearly 5-year period and explore the learning curve for LN dissection around the RLN in McKeown MIE by a new single surgical team.
View Article and Find Full Text PDFHunting for natural compounds that can modulate the structure of the intestinal flora is a new hotspot for colitis-associated cancer (CAC) prevention or treatment. Alisol B 23-acetate (AB23A) is a natural tetracyclic triterpenoid found in which is well known for dietary herb. is often used clinically to treat gastrointestinal diseases in China.
View Article and Find Full Text PDFLung cancer is the leading cause of cancer-associated death worldwide and exhibits a poor prognosis. The present study aimed to determine the effect of long non-coding (lnc)RNA-LINC00473 on the development of non-small cell lung cancer (NSCLC) cells by regulating the expression of microRNA (miR)-497-5p. Reverse transcription-quantitative PCR was conducted to detect the level of LINC00473 and miR-497-5p.
View Article and Find Full Text PDFFive new phloroglucinol derivatives were isolated from , and their structures were elucidated as brachyanones A-E () on the basis of the extensive spectroscopic analysis. Among them, compounds and exhibited significant inhibitory activity against -glucosidase with IC of 2.57 and 0.
View Article and Find Full Text PDFIn this study, seven 30-norlupane derivatives (2-8) wasobtained from the chemical oxidation ofbetulinic acidfollowed bybiotransformationviaBacillus megateriumCGMCC 1.1741. And metabolites 2-4 and 6-8 were newly identified products.
View Article and Find Full Text PDFTandem whole-cell biotransformation was applied successfully to deliver novel pentacyclic triterpenoid derivatives for the first time. In this process, the starting substrate oleanolic acid (1) was biotransformed into a hydroxylated metabolite 1a by Rhizopus chinensis CICC 40335 and then was further glycosylated to 1b by Bacillus subtilis ATCC 6633. Moreover, metabolite 1a was furtherly oxidized by Streptomyces griseus ATCC 13273 and generated two new derivatives as 1c and 1d.
View Article and Find Full Text PDFBackground: Waixenicin A, a bioactive extract of soft coral Sarcothelia edmondsoni, has been shown to be anti-neoplastic. However, its mechanisms of action remain unclear. Cancer stem cells (CSCs) and associated stemness factors are implicated in lung cancer.
View Article and Find Full Text PDFFive new phloroglucinol derivatives (1-5) together with one known analogue (6) were isolated from the leaves of Syzygium austroyunnanense which is an edible folk medicine used for the treatment of diabetes. The new structures were elucidated as austroyunones A - E (1-5) by means of the extensive spectroscopic analyses including high-resolution electrospray ionization mass spectrometry (HRESIMS) and 1D and 2D nuclear magnetic resonance (NMR). Compounds 4-6 showed obvious protein tyrosine phosphatase 1B (PTP1B) inhibitory activity.
View Article and Find Full Text PDFDeep brain stimulation of the subthalamic nucleus is recognized as the most effective treatment for moderate and advanced Parkinson's disease. Programming of the stimulation parameters is important for maintaining the efficacy of deep brain stimulation. Voltage is considered to be the most effective programming parameter.
View Article and Find Full Text PDFTo discover new potent cytotoxic steroidal saponins, a series of tigogenin neoglycosides were synthesized via oxyamine neoglycosylation for the first time. The preliminary bioassays for their in vitro antitumor activities against five human cancer cell lines (A375, A-549, HCT-116, HepG2 and MCF-7) were conducted. The results revealed a sugar-dependent activity profile of their cytotoxicity, the glycoconjugation converted the non-active tigogenin to the most potential product Tg29 ((3R)-N-methoxyamino-tigogenin-β-2-deoxy-d-galactoside) with IC value of 2.
View Article and Find Full Text PDFAppl Biochem Biotechnol
November 2017
Colchicinoids and their derivatives are of great importance in pharmaceutical applications, and colchicine is usually used as the first choice for the treatment of gout. To expand the structural diversities and clinical application of colchicinoids, many attempts have been established for the derivatives with better activity or less toxicity. Herein, in this paper, we report a direct microbial transformation of colchicine into 2-O-demethyl-colchicine (M1) and 3-O-demethl-colchicine (M2) by Streptomyces griseus ATCC 13273.
View Article and Find Full Text PDFMicrobial transformation of ursolic acid (1) by Bacillus megaterium CGMCC 1.1741 was investigated and yielded five metabolites identified as 3-oxo-urs-12-en-28-oic acid (2); 1β,11α-dihydroxy-3-oxo-urs-12-en-28-oic acid (3); 1β-hydroxy-3-oxo-urs-12-en-28, 13-lactoe (4); 1β,3β, 11α-trihydroxyurs-12-en-28-oic acid (5) and 1β,11α-dihydroxy-3-oxo-urs-12-en-28-O-β-d-glucopyranoside (6). Metabolites 3, 4, 5 and 6 were new natural products.
View Article and Find Full Text PDFTo discover new inhibitors on tissue factor procoagulant activity, 20 pentacyclic triterpenes were semi-synthetized through microbial transformation and assayed on the model of human THP-1 cells stimulated by lipopolysaccharide. In the biotransformation two types of reactions were observed, regio-selective hydroxylation and glycosylation. The bioassay results showed that most of tested compounds were significant effective on this model and two of the biotransformation products 23-hydroxy-28-O-β-d-glucopyranosyl betulinic acid (3d) and 28-O-β-d-glucopyranosyl oleanic acid (1a) exhibited most potential activities with the IC values of 0.
View Article and Find Full Text PDFChin J Nat Med
October 2015
The present study was designed to explore the substrate scope and biocatalytic capability of Gliocladium deliquescens NRRL 1086 on phenolic natural products. Emodin was subjected to the fermentation culture of Gliocladium deliquescens NRRL 1086 according to the standard two-stage protocol. The biotransformation process was monitored by HPLC-DAD-MS, the main product was isolated by column chromatography, and the structure was elucidated on the basis of NMR spectroscopy.
View Article and Find Full Text PDFBackground: Subthalamic nucleus deep brain stimulation (STN DBS) is effective against advanced Parkinson's disease (PD), allowing dramatic improvement of Parkinsonism, in addition to a significant reduction in medication. Here we aimed to investigate the long-term effect of STN DBS in Chinese PD patients, which has not been thoroughly studied in China.
Methods: Ten PD patients were assessed before DBS and followed up 1, 3, and 5 years later using Unified Parkinson's Disease Rating Scale Part III (UPDRS III), Parkinson's Disease Questionnatire-39, Parkinson's Disease Sleep Scale-Chinese Version, Mini-mental State Examination, Montreal Cognitive Assessment, Hamilton Anxiety Scale and Hamilton Depression Scale.
Objective: To explore the effect of combination therapy of tetramethylpyrazine (TMP) with methotrexate (MTX) on collagen induced arthritis (CIA) rats.
Methods: Totally 55 male SD rats were stratified by body weight. Nine of them were randomly recruited as the normal control group.
Ovarian cancer remains the disease with the highest associated mortality rate of gynecologic malignancy due to cancer metastasis. Rearrangement of actin cytoskeleton by cytoskeleton protein plays a critical role in tumor cell metastasis. MICAL-L2, a member of MICAL family, can interact with actin-binding proteins, regulate actin cross-linking and coordinate the assembly of adherens junctions and tight junctions.
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