Publications by authors named "Jian-Guo Wei"

Article Synopsis
  • EGFR-mutant nonsmall cell lung cancer (NSCLC) patients often show low PD-L1 positivity, making it rare for squamous cell lung cancer (SQCC) patients to have both EGFR mutations and PD-L1 over-expression, leading to a lack of treatment studies for this group.
  • A patient with SQCC was diagnosed via pleural biopsy and was found to have an EGFR exon 19 deletion and high PD-L1 levels, but did not respond to EGFR-targeted therapy.
  • Pembrolizumab treatment led to significant improvement, although the patient experienced severe immune-related side effects, showing that immune checkpoint inhibitors could be promising but require monitoring.
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Chromosomal translocation resulting in the fusion between the echinoderm microtubule-associated protein-like 4 () gene and the anaplastic lymphoma kinase () gene has been considered as a novel oncogenic fusion in a subset of non-small cell lung cancer (NSCLC), mostly in non-smokers with adenocarcinoma. EML4-ALK translocations are commonly reported to be mutually exclusive with epidermal growth factor receptor (EGFR) or KRAS mutations. Herein, we reported a rare case of 47-year-old female was diagnosed with lung adenocarcinoma and treated with three cycles of chemotherapy.

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Rationale: Plexiform fibromyxoma (PF) is an extremely rare mesenchymal tumor of the stomach, and its radiological findings have not been well described. Here, we analyzed the imaging features of a case of PF. To our knowledge, this is a rare reported case with a remarkable cystic change in the imaging literature.

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We report a case of concomitant EML4-ALK and TPM3-ROS1 fusion in non-small cell lung cancer (NSCLC) in a 47-year-old Chinese man and review the clinical characteristics of this type double of fusion. The patient presented with a local tumor of the left upper lobe and underwent thoracoscopy. Postoperative surgical pathologic staging revealed T N M stage IA.

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Lung adenocarcinomas with gene rearrangement in the receptor tyrosine kinase ROS1 have emerged as a rare molecular subtype. Although these lung adenocarcinomas respond to ROS1tyrosine kinase inhibitors, many patients ultimately acquire resistance. ROS1gene rearrangement is generally mutually exclusive with other driver genomic alterations, such as those in EGFR, KRAS, or ALK, thus multiple genomic alterations are extremely rare.

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Background: Laparoscopy-assisted distal gastrectomy (LADG) has been widely accepted for the treatment for gastric cancer. The aim of the present study was to explore the impact of abdominal shape parameters on gastric antrum cancer patients' short-term surgical outcomes of LADG with D2 lymph node dissection in both genders, including the number of lymph nodes retrieved and surgical safety index.

Methods: This was a retrospective analysis of 177 gastric antrum cancer patients, who underwent LADG between April 2009 and January 2016.

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In infants, pleuropulmonary blastoma is a rare but aggressive tumor. The typical histopathological presentation includes the aggregation of malignant primitive small cells, usually observed in sheets. So as to provide proper and timely treatment, the differential diagnosis includes pulmonary blastoma, sarcomatoid mesothelioma, fetal rhabdomyoma, synovial sarcoma, and primitive neuroectodermal tumor.

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One unique prenylated bibenzyl, kurzphenol A (1), two new prenylated flavonoids, kurzphenols B and C (2 and 3), as well as fourteen known compounds (4-17) were isolated from the twigs of Macaranga kurzii. Compound 1 was the first example of prenylated bibenzyl which possesses a benzofuran ring. All the known compounds were isolated from M.

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Primary gastric plasmacytoma (GP) is a rare extramedullary plasmacytoma with clinical and imaging features that are common among other gastric tumors, such as gastric adenocarcinomas, gastric stromal tumors, and lymphomas. Here, we present a histologically confirmed case of primary GP examined with biphasic computed tomography (CT), magnetic resonance imaging (MRI), and endosonography. A well-circumscribed extraluminal mass appearing as homogeneous attenuation/intensity with gradual enhancement was identified on biphasic enhancement CT and MRI.

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Article Synopsis
  • * Compound 1 is a rare 13-deoxy tigliane diterpenoid, while compound 2 is an ingenol diterpenoid with unique acidic features.
  • * All compounds were tested for cytotoxicity against five cancer cell lines, showing varying levels of effectiveness, and their antiangiogenic properties were assessed using a zebrafish model.
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Sixteen compounds were isolated from the aerial parts of Euphorbia sikkimensis by means of various chromatographic techniques such as silica gel, Sephades LH-20 and RP-18, and their structures were elucidated as naringenin (1), kaempferol (2), quercetin (3), kaempferol-3-O-alpha-L-arabinopyranoside (4), quercetin-3-O-alpha-L-arabinopyranoside (5), quercetin-3-O-(2"-galloyl)-alpha-L-arabinopyranoside (6), 5alpha, 8alpha-epidioxy-(22E, 24R)-ergosta-6,22-dien-3beta-ol (7), stigmast-5-ene-7-one-3beta-ol (8), 3beta-hydroxy4a, 14alpha-dimethyl-5alpha-ergosta-8, 24(28)-dien-7-one(9), beta-sitosterol (10) , 10-cucurbitadienol( 1) , scopoletin(12) , ethyl gallate(13), p-hydroxybenzaldehyde (14), 3 betahydroxybenzeneethanol( 15) ,and 2,4-dihydroxy-6-methoxy-acetophenone (16) on the basis of spectroscopic data analysis. All the compounds are isolated from this plant for the first time, and compounds 1, 4-8, 15 are obtained from Euphorbia species for the first time.

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Background: Schistosomiasis transmission is typically focal. Understanding spatial variations of Schistosoma infections and their associated factors is important to help to invent site-specific intervention strategies.

Methods: A five-year longitudinal study was carried out prospectively in 12 natural villages, Guichi district of Anhui province.

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In 2004 an aggressive plan was instituted aiming to achieve nationwide transmission control of schistosomiasis by 2015. Here, we report a longitudinal study on the control of schistosomiasis in Anhui province, China. Using a mathematical model, we compared the effects of different control strategies implemented in the study area.

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The effect of habitat fragmentation on schistosome-transmitting snails was assessed in an intervention village and a control village in Sichuan Province, China. Snail habitats were fragmented by environmental management. After 2 years, the proportions of quadrats with snails in the fragmented habitats decreased from 9.

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Objective: To analyze the sequence of microsatellite and the flanking sequence from four populations of Oncomelania hupensis.

Methods: We cloned 159 SSR-PCR amplification products of a commonly used primer, (CA)(8RY), using O. hupensis genomic DNA as template, and sequenced 82 products.

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From 2001 to 2006, about one-third of the residents aged 5-65 years were selected as the subjects in a schistosome-endemic village located in Jiangxi Province, China. Every 1 year, all participants were analyzed by the Kato-Katz parasitologic examination and indirect hemagglutination assay (IHA). Statistical analysis of the results showed the k indices ranged from 0.

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Objective: To explore the spatial pattern of the distribution of Oncomelania hupensis population in marshland and lake region.

Methods: Four bottomlands were selected randomly for the investigation along the Qiupu River in Guichi District, Anhui Province. The quadrats were placed randomly for snail survey, and the mean crowding, mean density, aggregation indices (diffusion coefficient (C), morisita index (Idelta), index of patchiness (m*/m) ), Taylor's power law and Iwao's m*-m regression index were analyzed.

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Objective: To explore the genetic diversity among populations of Oncomelania hupensis.

Methods: Simple sequence repeat-anchored PCR method was used to amplify the genomic DNA of nineteen snail populations from 8 provinces, and the genetic diversities among these snail populations were analyzed.

Results: The genetic distance D among nineteen snail populations ranged from 0 to 0.

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Objective: To determine the correlates of and willingness to participate(WTP) in HIV voluntary counseling and testing (VCT) among migrants in Shanxi province.

Methods: Through quota sampling, a total of 1280 migrants were recruited from 6 different venues where migrants were most likely employed to administer a face-to-face anonymous interview.

Results: Knowledge of VCT among migrants was low.

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A total of 1,811 individuals from two villages located in the areas of China endemic for Schistosoma japonicum were analyzed by the Kato-Katz parasitologic examination, indirect hemagglutination assay (IHA), and enzyme-linked immunosorbent assay (ELISA). Statistical analysis of the results showed the kappa indices ranged from 0.106 to 0.

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Objective: To explore the genetic diversity among populations of Oncomelania hupensis.

Methods: Amplified fragment length polymorphism method was used to amplify the genomic DNA pools of twenty five snail populations from ten provinces, and the genetic diversities among these snail populations were analyzed.

Results: The coefficient rates of similarity (GS(DICE)) among twenty five snail populations were ranged was from 0.

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Objective: To explore the degree of genetic diversity among populations of Oncomelania hupensis.

Methods: AFLP method was used to amplify the genomic DNA of thirteen snail populations from nine provinces (i. e.

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Objective: To specify the trends of endemic situation among twenty one national surveillance sites for schistosomiasis from 2000 to 2004.

Methods: According to the national surveillance protocol, longitudinal surveillance on endemic situation of schistosomiasis was carried out at twenty-one sites since 2000.

Results: The infection rate of Schistosoma japonicum declined in six of the twenty-one surveillance sites.

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Objective: To explore the reasonable sample size and the number of molecular marker loci in the study of amplified fragment length polymorphism (AFLP) being used to analyze the genetic diversity of Ocomelania hupensis.

Methods: The ribbed-shelled snails coming from Yueyang, Hunan province, were selected to analyze the relationship of the number of AFLP molecular marker loci and sample size with the reliability of information on genetic variation for Ocomelania hupensis by AFLP method.

Results: Correlations found among the numbers of AFLP molecular marker loci and the sample size with reliable information on genetic variation for Ocomelania hupensis.

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Objective: To search into a method for analyzing the quantitative data in amplified fragment length polymorphism (AFLP) electrophoresis.

Methods: Oncomelania snails collected from the field were screened. Forty snails found uninfected with schistosomiasis were divided randomly into two groups and used to isolate genomic DNA.

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