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1.
Nat Prod Res ; : 1-11, 2024 Mar 18.
Article in English | MEDLINE | ID: mdl-38498767

ABSTRACT

The chemical investigation of the fibrous roots of Ophiopogon japonicus afforded two new steroidal saponins, named ophiojaponin F (1) and ophiojaponin G (2), together with twelve known steroidal saponins (3-14) and ten known homoisoflavonoids (15-24). The structures of the isolated compounds were established unambiguously via spectroscopic analyses (NMR and HR-ESI-MS). Ophiojaponin F (1) is a 23-hydroxylated spirostanol saponin, and this type of steroidal saponin rarely been reported in liriopogons. All isolates were evaluated for their anti-pulmonary fibrosis activities on TGF-ß1-actived NIH3T3 cells for the first time. Among them, compounds 3, 4, 11-13, 15-19, 21 and 24 showed potential anti-pulmonary fibrosis effects with IC50 values ranging from 3.61 ± 0.86 µM to 21.33 ± 1.82 µM, and the main component ophiopogonin D (4) displayed the best activity with an IC50 value of 3.61 ± 0.86 µM. Thus, ophiopogonin D may be a potent candidate for the treatment of pulmonary fibrosis.

2.
Article in English | MEDLINE | ID: mdl-36767671

ABSTRACT

This qualitative study explored the sexual orientation microaggression (SOM) experiences and coping strategies of lesbian, gay, and bisexual (LGB) individuals in Taiwan. In total, 30 LGB individuals (17 women and 13 men; 17 homosexual and 13 bisexual individuals) who experienced SOMs participated in qualitative, semistructured interviews, during which their SOM experiences were assessed. Through the interviews, several types of SOMs were identified, corresponding to three main types of microaggression (microassaults, microinsults, and microinvalidations) previously identified in Western studies. The participants reported various coping responses to SOMs, ranging from active responses to choosing not to respond, to protecting themselves or to minimizing the negative consequences of confrontation. The results provide mental health professionals with insight regarding the contexts of and coping responses to the SOMs experienced by LGB individuals.


Subject(s)
Homosexuality, Female , Sexual and Gender Minorities , Humans , Female , Male , Microaggression , Taiwan , Bisexuality/psychology , Homosexuality, Female/psychology , Sexual Behavior , Adaptation, Psychological
3.
Article in Chinese | WPRIM (Western Pacific) | ID: wpr-986790

ABSTRACT

Esophageal cancer is a malignant tumor with a high incidence in China. At pesent, advanced esophageal cancer patients are still frequently encountered. The primary treatment for resectable advanced esophageal cancer is surgery-based multimodality therapy, including preoperative neoadjuvant therapy, such as chemotherapy, chemoradiotherapy or chemotherapy plus immunotherapy, followed by radical esophagectomy with thoraco-abdominal two-field or cervico-thoraco-abdominal three-field lymphadenectomy via minimally invasive approach or thoracotomy. In addition, adjuvant chemotherapy, radiotherapy, or chemoradiotherapy, or immunotherapy may also be administered if suggested by postoperative pathological results. Although the treatment outcome of esophageal cancer has improved significantly in China, many clinical issues remain controversial. In this article, we summarize the current hotspots and important issues of esophageal cancer in China, including prevention and early diagnosis, treatment selection for early esophageal cancer, surgical approach selection, lymphadenectomy method, preoperative neoadjuvant therapy, postoperative adjuvant therapy, and nutritional support treatment.


Subject(s)
Humans , Esophageal Neoplasms/surgery , Combined Modality Therapy , Neoadjuvant Therapy/methods , Chemoradiotherapy , Chemotherapy, Adjuvant , Esophagectomy/methods
4.
Behav Sci (Basel) ; 12(8)2022 Jul 23.
Article in English | MEDLINE | ID: mdl-35892349

ABSTRACT

The New York State (NYS) Office of Mental Health created the NYS COVID-19 Emotional Support Helpline and enlisted graduate students to provide phone-based emotional support initially to the NYS community. This NYS-funded initiative transformed into providing psychosocial support for callers across the United States. Four NYS doctoral students acted as the helpline agents and received 251 individual calls from May-August 2020. The agents documented the calls with clinical notes which cannot be traced back to specific callers. The purpose of this retrospective qualitative study was to explore the themes that emerged from the calls to give voice to the trauma that callers were reporting during the early phases of the pandemic, and the resilience they demonstrated as they engaged with the Helpline. The agents' clinical transcripts were converted into codes using a critical-constructivist grounded theory approach (Levitt, 2021) with the NVIVO qualitative data analysis software. A second research team audited the initial codes for construct clarity. Emergent themes detailed the unique traumas that helpline callers divulged, how the agents provided support, and the callers' capacities for resilience. Recommendations are suggested to inform clinicians working with pandemic survivors, to offer guidance on providing distance or virtual interventions as well as to enhance policymakers' understanding of addressing mental health needs across populations served via the NYS COVID-19 Emotional Support Helpline.

5.
Neurobiol Aging ; 100: 118.e15-118.e16, 2021 04.
Article in English | MEDLINE | ID: mdl-33004232

ABSTRACT

Mutations in the peptidyl-tRNA hydrolase domain containing 1 (PTRHD1) gene have been recently identified in consanguineous Iranian and African families with juvenile parkinsonism and intellectual disability. However, the pathogenicity of PTRHD1 mutations in the disease and their role in young-onset Parkinson's disease (PD) remains unclear. We aimed to investigate PTRHD1 mutations in a Taiwanese cohort with young-onset and familial PD. We enrolled 464 participants, including 178 probands from PD pedigrees without known PD-causative gene mutations and 286 patients with young-onset PD (age of onset <50 years). All exons and exon-intron boundary junctions of PTRHD1 were analyzed by Sanger sequencing. We did not find any pathogenic coding variants or previously reported mutations, suggesting that PTRHD1 mutations are rare in young-onset and familial PD in our population.


Subject(s)
Membrane Proteins/genetics , Mitochondrial Proteins/genetics , Mutation/genetics , Parkinson Disease/genetics , Parkinsonian Disorders/genetics , Age Factors , Aged , Asian People/genetics , Cohort Studies , Exons/genetics , Female , Humans , Male , Middle Aged , Pedigree , Taiwan
6.
Phytochemistry ; 181: 112543, 2021 Jan.
Article in English | MEDLINE | ID: mdl-33161176

ABSTRACT

Seven undescribed terpenoids, including three pairs of enantiomers, named (±)-rugulolides A-C, and one cyclopentenone derivative, named rugulolide D, together with twenty-six known compounds, were isolated from the aerial parts of Elsholtzia rugulosa. The chiral separation of rugulolides A-C was achieved by high-performance liquid chromatography using the chiral column. Their structures were elucidated unambiguously based on comprehensive spectroscopic analysis in conjunction with electronic circular dichroism (ECD) and single-crystal X-ray diffraction experiments. Rugulolides A-D are rare naturally occurring terpenoid derivatives featuring a methylated α,ß-unsaturated-γ-lactone or a cyclopent-2-en-1-one nucleus. All the isolates were evaluated for their inhibitory effects on lipopolysaccharide-induced nitric oxide production in RAW264.7 cell, among them, four compounds showed moderate inhibition with IC50 values ranging from 12.46 to 23.10 µM.


Subject(s)
Lamiaceae , Terpenes , Animals , Anti-Inflammatory Agents/pharmacology , Mice , Molecular Structure , Plant Components, Aerial , Terpenes/pharmacology
7.
Emerg Microbes Infect ; 9(1): 889-899, 2020 Dec.
Article in English | MEDLINE | ID: mdl-32284015

ABSTRACT

In the present study, a total of 7793 samples from 5 different types of hosts were collected and tested, with a seroprevalence of 2.4% (184/7793). Although the seroprevalence of human and animal brucellosis is relatively low, numbers of human brucellosis cases reported have increased continuously from 2004 to 2018. A total of 118 Brucella strains containing 4 biotypes were obtained, including Brucella melitensis bv.1 (n = 8) and bv.3 (n = 106), Brucella abortus bv.3 (n = 3) and bv.7 (n = 1). Twenty-one shared MLVA-16 genotypes, each composed of 2 to 19 strains obtained from different hosts, suggest the occurrence of a brucellosis outbreak epidemic with multiple source points and laboratory infection events. Moreover, 30 shared MLVA-16 genotypes were observed among 59.6% (68/114) B. melitensis isolates from Zhejiang and strains from other 21 different provinces, especially northern provinces, China. The analysis highlighted the imported nature of the strains from all over the northern provinces with a dominant part from the developed areas of animal husbandry. These data revealed a potential transmission pattern of brucellosis in this region, due to introduced infected sheep leading to a brucellosis outbreak epidemic, and eventually causing multiple laboratory infection events. It is urgent to strengthen the inspection and quarantine of the introduced animals.


Subject(s)
Brucella/classification , Brucellosis/epidemiology , Brucellosis/transmission , Laboratory Infection/microbiology , Sheep/microbiology , Animals , Bacterial Typing Techniques , Brucella abortus/genetics , Brucella melitensis/genetics , China/epidemiology , DNA, Bacterial/genetics , Disease Outbreaks , Genetic Variation , Genotype , Humans , Minisatellite Repeats , Multilocus Sequence Typing , Phylogeny , Seroepidemiologic Studies
8.
Microorganisms ; 8(1)2020 Jan 13.
Article in English | MEDLINE | ID: mdl-31941013

ABSTRACT

Aminopeptidases that catalyze the removal of N-terminal residues from polypeptides or proteins are crucial for physiological processes. Here, we explore the biological functions of an M29 family aminopeptidase II from Listeria monocytogenes (LmAmpII). We show that LmAmpII contains a conserved catalytic motif (EEHYHD) that is essential for its enzymatic activity and LmAmpII has a substrate preference for arginine and leucine. Studies on biological roles indicate that LmAmpII is required for in vitro growth in a chemically defined medium for optimal growth of L. monocytogenes but is not required for bacterial intracellular infection in epithelial cells and macrophages, as well as cell-to-cell spreading in fibroblasts. Moreover, LmAmpII is found as dispensable for bacterial pathogenicity in mice. Taken together, we conclude that LmAmpII, an M29 family aminopeptidase, can efficiently hydrolyze a wide range of substrates and is required for in vitro bacterial growth, which lays a foundation for in-depth investigations of aminopeptidases as potential targets to defend Listeria infection.

9.
Article in English | WPRIM (Western Pacific) | ID: wpr-880611

ABSTRACT

Amyotrophic lateral sclerosis (ALS) is a rare neurodegenerative disease affecting the upper and lower motor neurons. It is characterized by progressive muscle weakness, atrophy and ultimate death due to dysphagia and dyspnea. There are many causes of ALS, among which the genetic factors show great relevance. Imbalance of protein homeostasis in neurons, prion-like proliferation and propagation of abnormal proteins, mitochondrial dysfunction, glutamate mediated excitotoxicity, and intraneuronal substance transport disorders are recognized as the pathogenesis.The study on gene mutation related to pathogenesis will bridge the molecular and cellular research of ALS, which can deepen the understanding of the occurrence and development of ALS and the role of gene mutation in ALS, and provide new ideas and enlightenment for the treatment of ALS.


Subject(s)
Humans , Amyotrophic Lateral Sclerosis/genetics , Motor Neurons , Mutation , Neurodegenerative Diseases , Proteins
10.
Virulence ; 10(1): 910-924, 2019 12.
Article in English | MEDLINE | ID: mdl-31680614

ABSTRACT

Thiol-disulfide glutaredoxin systems of bacterial cytoplasm favor reducing conditions for the correct disulfide bonding of functional proteins, and therefore were employed by bacteria to defend against oxidative stress. Listeria monocytogenes has been shown to encode a putative glutaredoxin, Grx (encoded by lmo2344), while the underlying roles remain unknown. Here we suggest an unexpected role of L. monocytogenes Grx in oxidative tolerance and intracellular infection. The recombinant Grx was able to efficiently catalyze the thiol-disulfide oxidoreduction of insulin in the presence of DTT as an election donor. Unexpectedly, the deletion of grx resulted in a remarkably increased tolerance and survival ability of this bacteria when exposed to various oxidizing agents, including diamide, and copper and cadmium ions. Furthermore, loss of grx significantly promoted bacterial invasion and proliferation in human epithelial Caco-2 cells and murine macrophages, as well as a notably increasing invasion but not cell-to-cell spread in the murine fibroblasts L929 cells. More importantly, L. monocytogenes lacking the glutaredoxin exhibited more efficient proliferation and recovery in the spleens and livers of the infected mice, and hence became more virulent by upregulating the virulence factors, InlA and InlB. In summary, we here for the first time demonstrated that L. monocytogenes glutaredoxin plays a counterintuitive role in bacterial oxidative resistance and intracellular infection, which is the first report to provide valuable evidence for the role of glutaredoxins in bacterial infection, and more importantly suggests a favorable model to illustrate the functional diversity of bacterial Grx systems during environmental adaption and host infection.


Subject(s)
Cytoplasm/microbiology , Gene Deletion , Glutaredoxins/genetics , Listeria monocytogenes/genetics , Listeria monocytogenes/pathogenicity , Oxidative Stress , Animals , Bacterial Proteins/genetics , Caco-2 Cells , Cell Line , Epithelial Cells/microbiology , Female , Fibroblasts/microbiology , Humans , Insulin/metabolism , Listeria monocytogenes/drug effects , Listeriosis/microbiology , Macrophages/microbiology , Mice , Mice, Inbred ICR , Oxidants/pharmacology , Virulence Factors
11.
Eur J Med Genet ; 62(2): 115-123, 2019 Feb.
Article in English | MEDLINE | ID: mdl-29929010

ABSTRACT

BACKGROUND: Fetal chromosome aberrations and sub-chromosomal copy number variations (CNVs) are not rare. There are several ways to detect duplications and deletions; cell-free DNA screening (cfDNA screening) is nowadays an accurate and safe detection method. The objective of this study is to report the feasibility of cfDNA screening as an indicator of parental balanced chromosome translocation. RESULTS: From February 2015 to March 2016, cfDNA screening was offered to 11344 pregnant women. 137 out of 11344 individuals tested positive for aneuploidies using cfDNA screening were confirmed by karyotyping. 6 additional cases also tested positive for other deletion/duplication were confirmed by chromosomal microarray analysis (CMA). 11201 patients tested negative and 10342 of them were confirmed through interviews after delivery. Among the 137 cases that were screened positive in cfDNA screening, 91 were common trisomies (63 cases of trisomy 21, 25 cases of trisomy 18 and 3 cases of trisomy 13) and 46 cases were positive for sex-chromosomal abnormalities. In addition, 6 cases were positive for other deletion/duplication in which 2 were identified as terminal duplication and deletion on different chromosomes. The cfDNA screening findings were confirmed by CMA or karyotyping, and the origins of CNVs were validated afterward by karyotyping or fluorescence in situ hybridization (FISH) using parental blood samples. CONCLUSION: CfDNA screening may help identify deletions and duplications in fetus, which in some cases may indicate risk of a parent being a balanced rearrangement carrier, and that the diagnostic follow-up testing is necessary.


Subject(s)
Cell-Free Nucleic Acids/genetics , Chromosome Disorders/genetics , Genetic Testing/methods , Karyotyping/methods , Maternal Serum Screening Tests/methods , Adult , Chromosome Aberrations , Chromosome Disorders/diagnosis , Chromosome Disorders/epidemiology , Female , Hospitals, University/statistics & numerical data , Humans , Pregnancy
12.
Sheng Wu Gong Cheng Xue Bao ; 34(5): 685-693, 2018 May 25.
Article in Chinese | MEDLINE | ID: mdl-29893076

ABSTRACT

We aimed to obtain the recombinant aminopeptidase encoded by Listeria monocytogenes (L. monocytogenes) gene lmo1711, and characterized the enzyme. First, the amino acid sequences of Lmo1711 from L. monocytogenes EGD-e and its homologues in other microbial species were aligned and the putative active sites were analyzed. The putative model of Lmo1711 was constructed through the SWISS-MODEL Workspace. Then, the plasmid pET30a-Lmo1711 was constructed and transformed into E. coli for expression of the recombinant Lmo1711. The his-tagged soluble protein was purified using the nickel-chelated affinity column chromatography. With the amino acid-p-nitroaniline as the substrate, Lmo1711 hydrolyzed the substrate to free p-nitroaniline monomers, whose absorbance measured at 405 nm reflected the aminopeptidase activity. The specificity of Lmo1711 to substrates was then examined by changing various substrates, and the effect of metal ions on the catalytic efficiency of this enzyme was further determined. Based on the bioinformatics data, Lmo1711 is a member of the M29 family aminopeptidases, containing a highly conserved catalytic motif (Glu-Glu-His-Tyr-His-Asp) with typical structure arrangements of the peptidase family. The recombinant Lmo1711 with a size of about 49.3 kDa exhibited aminopeptidase activity and had a selectivity to the substrates, with the highest degree of affinity for leucine-p-nitroaniline. Interestingly, the enzymatic activity of Lmo1711 can be activated by Cd²âº, Zn²âº, and is strongly stimulated by Co²âº. We here, for the first time demonstrate that L. monocytogenes lmo1711 encodes a cobalt-activated aminopeptidase of M29 family.


Subject(s)
Aminopeptidases/chemistry , Listeria monocytogenes/enzymology , Amino Acid Sequence , Aminopeptidases/genetics , Cobalt , Escherichia coli , Listeria monocytogenes/genetics , Recombinant Proteins/chemistry , Recombinant Proteins/genetics , Substrate Specificity
13.
Front Microbiol ; 9: 208, 2018.
Article in English | MEDLINE | ID: mdl-29487588

ABSTRACT

Listeria monocytogenes is a food-associated bacterium that is responsible for food-related illnesses worldwide. In the L. monocytogenes EGD-e genome, FlhB, FliM, and FliY (encoded by lmo0679, lmo0699, and lmo0700, respectively) are annotated as putative flagella biosynthesis factors, but their functions remain unknown. To explore whether FlhB, FliM, and FliY are involved in Listeria flagella synthesis, we constructed flhB, fliM, fliY, and other flagellar-related gene deletion mutants using a homologous recombination strategy. Then, we analyzed the motility, flagella synthesis, and protein expression of these mutant strains. Motility and flagella synthesis were completely abolished in the absence of flhB, fliM, or fliY. These impaired phenotypes were fully restored in the complemented strains CΔflhB, CΔfliM, and CΔfliY. The transcriptional levels of flagellar-related genes, including flaA, fliM, fliY, lmo0695, lmo0698, fliI, and fliS, were downregulated markedly in the absence of flhB, fliM, or fliY. Deletion of flhB resulted in the complete abolishment of FlaA expression, while it decreased FliM and FliY expression. The expression of FlaA was abolished completely in the absence of fliM or fliY. No significant changes were found in the expression of FlhF and two flagella synthesis regulatory factors, MogR and GmaR. We demonstrate for the first time that FlhB, FliM, and FliY not only mediate Listeria motility, but also are involved in regulating flagella synthesis. This study provides novel insights that increase our understanding of the roles played by FlhB, FliM, and FliY in the flagellar type III secretion system in L. monocytogenes.

14.
Mol Cytogenet ; 11: 12, 2018.
Article in English | MEDLINE | ID: mdl-29422950

ABSTRACT

BACKGROUND: Chromosome translocations are rare but frequently associated with infertility. The objective of this study is to investigate the feasibility of using chromosomal microarray analysis (CMA) on products of conception (POC) samples as an indicator of parental balanced translocation. From January 2011 to December 2016, CMA using Affymetrix Cytoscan™750K array was performed on 1294 POC samples in our hospital. Karyotyping and fluorescence in situ hybridization (FISH) using parental blood samples were performed to validate the origin of subchromosomal copy number variations (CNVs). RESULTS: In the 1294 cases of POCs, we detected CNVs of terminal duplication and deletion that imply unbalanced translocation derivatives in 16 cases, and accurate diagnosis with the parental study was made in all the cases by karyotyping and/or FISH. In 10/16 (62.5%) of these cases, CNVs were inherited from one carrier parent of balanced translocation (Cases 1 to 10), while 6/16 (37.5%) cases occurred de novo (Cases 11 to 16). CONCLUSION: This study clearly illustrated the importance of the utilization of CMA on POC, followed by parental karyotyping and FISH to better characterize CNVs. This approach is especially useful for couples in whom one partner carries a cryptic/submicroscopic balanced translocation but has an apparently normal karyotype.

15.
Front Immunol ; 8: 1439, 2017.
Article in English | MEDLINE | ID: mdl-29163512

ABSTRACT

Listeria monocytogenes is a facultative intracellular pathogen that secretes the cytolysin listeriolysin O (LLO), which enables the bacteria to cross the phagosomal membrane. L. monocytogenes regulates LLO activity in the phagosome and minimizes its activity in the host cytosol. Mutants that fail to compartmentalize LLO activity are cytotoxic and have attenuated virulence. Here, we showed that residues N478 and V479 of LLO are required for LLO hemolytic activity and bacterial virulence. A single N478A mutation (LLON478A) significantly increased the hemolytic activity of LLO at a neutral pH, while no difference was observed at the optimum acidic pH, compared with wild-type LLO. Conversely, the mutant LLOV479A exhibited lower hemolytic activity at the acidic pH, but not at the neutral pH. The double mutant LLON478AV479A showed a greater decrease in hemolytic activity at both the acidic and neutral pHs. Interestingly, strains producing LLON478A or LLOV479A lysed erythrocytes similarly to the wild-type strain. Surprisingly, bacteria-secreting LLON478AV479A had barely detectable hemolytic activity, but exhibited host cell cytotoxicity, escaped from the phagosome, grew intracellularly, and spread cell-to-cell with the same efficiency as the wild-type strain, but were highly attenuated in virulence in mice. These data demonstrate that these two residues are required for LLO hemolytic activity and pathogenicity in mice, but not for escape from the phagosome and cell-to-cell spreading. The finding that the nearly non-hemolytic LLON478AV479A mutant grew intracellularly indicates that mutagenesis of a virulence determinant is a novel approach for the development of live vaccine strains.

16.
Article in Chinese | WPRIM (Western Pacific) | ID: wpr-489043

ABSTRACT

Objective To study the early clinical outcome of patients undergone minimally invasive direct coronary bypass(MIDCAB) surgery,and the mid-term patency of left internal mammary artery(LIMA)-left anterior descending(LAD) anastomosis.Methods From Jannuary 2007 to May 2014,47 cases underwent MIDCAB surgery in our department,with 35 males and 12 females,aged 48-76 years,with the average of (62.9 ± 8.1) years old.Types of LAD lesions were as followed:1 case was ostial total obstruction,28 severe stenosis at proximal segment,10 long and severe stenosis,3 calcified lesion with severe stenosis,5 myocardial bridge.All patients had symptomatic angina,typical myocardial ischemia could be detected by electrocardiogram for all patients with myocardial bridge.Comorbidities included:hypertension 38 cases,27 diabetes mellitus,3 COPD and 3 chronic kidney disease.Results All surgery went well without transfer to mid-sternotomy.LIMA harvest time was 38-53 minutes,mean LIMA flow rate was(22 ± 6) ml/min after anastomosis.Surgery duration was 117-143 minutes,blood loss was less than 100 ml for each operation.No blood transfusion was required.Tracheal intubation time was 4-16 hours,ICU stay time was 22-45 hours,hospital stay time was 6-10 days.There was no peri-operative death,either no myocardial infarction or cerebral vessel accident.During follow-up,all LIMA-LAD appeared to be patent by coronary CT angiography.Conclusion High patency rate of LIMA-LAD anastomosis could also be obtained during MIDCAB surgery.It was reserved as a safe and effective surgery for well-selected patients.

17.
Chinese Journal of Pediatrics ; (12): 328-332, 2014.
Article in Chinese | WPRIM (Western Pacific) | ID: wpr-345794

ABSTRACT

<p><b>OBJECTIVE</b>To evaluate the safety and efficacy of endoscopic retrograde cholangiopancreatography (ERCP) in children with pancreaticobiliary diseases and the characteristics of pancreaticobiliary disorders in children.</p><p><b>METHOD</b>Retrospective review was conducted on the data of patients younger than 18 years who underwent ERCP between 2005 and 2012 at West China Hospital. The indications,ERCP findings, ERCP procedures, complications, and clinical outcomes were evaluated.ERCP procedures were performed using standard duodenoscopes under general anaesthesia or sedation, which included all endoscopic treatments, such as endoscopic sphincteropapillotomy, stone extraction, stent treatment and so on.</p><p><b>RESULT</b>One hundred and two ERCPs were performed on 68 patients, and all the procedures were successfully completed in 100% cases. There were 39 girls (57%), and median age at time of procedure was 14.6 years (range, 5-17 years).General anesthesia and sedation were performed in 81% and 19% of procedures, respectively. The ERCP findings were classified as follows:bile duct stone(s) (n = 37, 54%), pancreatic duct stone(s) (n = 8, 12%), bile duct benign stricture (n = 7, 10%) and other nonmalignant pancreaticobiliary diseases (n = 16, 24%).Four cases (4/102, prevalence 4%) were complicated with post-ERCP pancreatitis.Symptoms such as abdominal pain and jaundice were cured obviously after the procedures of ERCP were performed.</p><p><b>CONCLUSION</b>The main characteristics of pancreaticobiliary disorders in children were nonmalignant pancreaticobiliary diseases, such as bile duct stone, pancreatic duct stone, and bile/pancreatic duct benign stricture.When performed by well-trained endoscopists, ERCP is safe and effective in children.</p>


Subject(s)
Adolescent , Child , Child, Preschool , Female , Humans , Male , Biliary Tract Diseases , Diagnostic Imaging , General Surgery , Calculi , Diagnosis , Pathology , General Surgery , Cholangiopancreatography, Endoscopic Retrograde , Choledocholithiasis , Diagnosis , Pathology , General Surgery , Pancreatic Diseases , Diagnosis , Pathology , General Surgery , Pancreatic Ducts , Diagnostic Imaging , General Surgery , Retrospective Studies , Treatment Outcome
18.
Xi Bao Yu Fen Zi Mian Yi Xue Za Zhi ; 28(10): 1041-5, 2012 Oct.
Article in Chinese | MEDLINE | ID: mdl-23046935

ABSTRACT

AIM: To investigate the time course of the gene expression after the organ transplantation, and try to identify the relationship of the gene and protein changes with the pathological progression and the immune rejection. METHODS: We systematically observed the gene expression of CD4, CD8, P56, P59 by real-time PCR. The time courses of gene expression were analyzed by Fluorescent Differential Display after the organ transplantation. At the same time points, the clinical outcomes of the patients were followed up so that we could identify the relationship of the gene expression and the immune rejection. RESULTS: Immunosuppressive drugs could not prevent the transplantation rejection completely. P59 gene and tyrosine phosphatase genes started to express positively within 24 h after organ transplantation. Between 24-48 h, PKC-theta and CD4 gene expression levels increased. The expressions of PKC-theta, MHC-II, serine/threonine kinase, tyrosine phosphatase, serine/threonine kinase 15, clotting factor VIII, interferon gamma-inducible protein 16 and HLA-DR-H increased by three times compared to pre-transplantation in patients with kidney and heart transplantations. The expression of P59 gene remained stable within 24 h after transplantation, and then decreased to the lowest level at day 10. P56 and CD8 levels were down-regulated within 72 h, and then up-regulated to the first peak at day 5. The expression of CD4 was also inhibited within 24 h, and then increased to the first peak at 48 h. CONCLUSION: The monitoring on the expressions of the proteins and genes on the peripheral lymphocytes may help to early find the clinical immune rejection after organ transplantation and judge the efficiency of the anti-rejection drugs.


Subject(s)
Gene Expression Profiling , Lymphocytes/metabolism , Organ Transplantation , Transplantation Immunology/genetics , Adult , Female , Gene Expression Regulation , Graft Rejection/immunology , Humans , Lymphocytes/immunology , Male , Middle Aged , Time Factors , Transplantation, Homologous , Young Adult
19.
Org Lett ; 14(15): 3936-9, 2012 Aug 03.
Article in English | MEDLINE | ID: mdl-22817657

ABSTRACT

A facile two-step synthetic route for preparing the novel tetracyclic skeleton of benzofused 2,6-diaryl-1-azahomoisotwistanes 2 had been developed. The route was carried out by a one-pot tandem cross-coupling reaction of o-allylbenzaldehydes 1 with aryl methyl ketones 3, and NH(4)OAc mediated the cascade cyclocondensation reaction of the resulting 1,5-diketones 4 with the 3-o-allylphenyl group in good yield in two steps.


Subject(s)
Acetates/chemistry , Azabicyclo Compounds/chemical synthesis , Heterocyclic Compounds, 4 or More Rings/chemical synthesis , Azabicyclo Compounds/chemistry , Catalysis , Crystallography, X-Ray , Heterocyclic Compounds, 4 or More Rings/chemistry , Ketones/chemical synthesis , Ketones/chemistry , Molecular Conformation , Molecular Structure , Pentanes/chemistry
20.
Kaohsiung J Med Sci ; 22(6): 266-70, 2006 Jun.
Article in English | MEDLINE | ID: mdl-16793563

ABSTRACT

The purpose of this study was to evaluate both the intraocular pressure (IOP)-decreasing and neuroprotective effects of Rescula (0.12% unoprostone isopropyl) as an alternative therapy to betablockers with a long-term drift effect in patients with glaucoma. Twenty-eight patients with unilateral or bilateral glaucoma were treated with Rescula instead of the original beta-blocker therapy. IOP was measured using a Goldmann applanation tonometer, and visual field defects were evaluated quantitatively by Humphrey automatic perimetry central 30-2 threshold test. The mean follow-up time was at least 1 year. Rescula achieved a significant (p = 0.00001) and long-lasting reduction in IOP (from 20.78 +/- 2.71 to 17.14 +/- 2.70 mmHg) in patients with open-angle glaucoma after 12 months of follow-up. It also demonstrated a significant (p = 0.02) IOP-reducing effect (from 20.67 +/- 3.60 to 16.36 +/- 3.67 mmHg) in patients with angle-closure glaucoma 12 months later. The mean deviation of visual field defects changed from -13.27 dB baseline to -10.64 dB at 12 months as evaluated by Humphrey field analyzer II central 30-2 threshold test after Rescula; however, there was no statistical difference (p = 0.098). Our results showed that Rescula has a significant IOP-reducing effect as an alternative therapy to beta-blockers with long-term drift effect in patients with open-angle and angle-closure glaucoma. However, a neuroprotective effect to prevent further progression of the visual field defect in patients with glaucoma was not demonstrated in this study.


Subject(s)
Adrenergic beta-Antagonists/therapeutic use , Antihypertensive Agents/therapeutic use , Dinoprost/analogs & derivatives , Glaucoma/drug therapy , Adult , Aged , Dinoprost/pharmacology , Dinoprost/therapeutic use , Female , Humans , Intraocular Pressure/drug effects , Male , Middle Aged , Neuroprotective Agents/pharmacology , Prospective Studies , Visual Fields/drug effects
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