检索结果-南通市图书馆

Accurate Diagnosis of SARS-CoV-2 JN.1 by Sanger Sequencing of Receptor-Binding Domain Is Needed for Clinical Evaluation of Its Immune Evasion

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Journal of Biosciences and Medicines 2024年第4期12卷 69-78页

作者： Sin Hang lee Milford Molecular Diagnostics Laboratory Milford CT USA

Background: Omicron JN.1 has become the dominant SARS-CoV-2 variant in recent months. JN.1 has the highest number of amino acid mutations in its receptor binding domain (RBD) and has acquired a hallmark L455S mutation. The immune evasion capability of JN.1 is a subject of scientific investigation. The US CDC used SGTF of TaqPath COVID-19 Combo Kit RT-qPCR as proxy indicator of JN.1 infections for evaluation of the effectiveness of updated monovalent XBB.1.5 COVID-19 vaccines against JN.1 and recommended that all persons aged ≥ 6 months should receive an updated COVID-19 vaccine dose. Objective: Recommend Sanger sequencing instead of proxy indicator to diagnose JN.1 infections to generate the data based on which guidelines are made to direct vaccination policies. Methods: The RNA in nasopharyngeal swab specimens from patients with clinical respiratory infection was subjected to nested RT-PCR, targeting a 398-base segment of the N-gene and a 445-base segment of the RBD of SARS-CoV-2 for amplification. The nested PCR amplicons were sequenced. The DNA sequences were analyzed for amino acid mutations. Results: The N-gene sequence showed R203K, G204R and Q229K, the 3 mutations associated with Omicron BA.2.86 (+JN.1). The RBD sequence showed 24 of the 26 known amino acid mutations, including the hallmark L455S mutation for JN.1 and the V483del for BA.2.86 lineage. Conclusions: Sanger sequencing of a 445-base segment of the SARS-CoV-2 RBD is useful for accurate determination of emerging variants. The CDC may consider using Sanger sequencing of the RBD to diagnose JN.1 infections for statistical analysis in making vaccination policies.

关键词： Omicron JN.1 SARS-CoV-2 Sanger Sequencing RBD L455S Mutation Immune Evasion Vaccination Policies CDC

Potentials of ribosomopathy gene as pharmaceutical targets for cancer treatment

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Pharmaceutical Analysis 2024年第3期14卷 308-320页

作者： Mengxin Wang Stephen Vulcano Changlu Xu Renjian Xie Weijie Peng Jie Wang Qiaojun Liu lee Jia Zhi Li Yumei Li Key Laboratory of Biomaterials and Biofabrication in Tissue Engineering of Jiangxi Province Gannan Medical UniversityGanzhouJiangxi341000China School of Rehabilitation Medicine Gannan Medical UniversityGanzhouJiangxi341000China Autoimmunity and Inflammation Program HSS Research InstituteHospital for Special Surgery New YorkNew YorkNY10021USA Division of Oral and Systemic Health Sciences School of DentistryUniversity of CaliforniaLos AngelesCA90095USA School of Medical Information Engineering Gannan Medical UniversityGanzhouJiangxi341000China Inflammation and Immune Mediated Diseases Laboratory of Anhui Province Anhui Institute of Innovative DrugsInstitute for Liver Diseases of Anhui Medical UniversitySchool of PharmacyAnhui Medical UniversityHefei230032China School of Basic Medicine Gannan Medical UniversityGanzhouJiangxi341000China Institute of Oceanography Minjiang UniversityFuzhou350108China

Ribosomopathies encompass a spectrum of disorders arising from impaired ribosome biogenesis and reduced *** or dysexpression of the genes that disturb any finely regulated steps of ribosome biogenesis can result in different types of ribosomopathies in clinic,collectively known as ribosomopathy *** data suggest that ribosomopathy patients exhibit a significantly heightened susceptibility to *** ribosome biogenesis and dysregulation of some ribosomopathy genes have also been found to be intimately associated with cancer *** correlation between ribosome biogenesis or ribosomopathy and the development of malignancies has been well *** work aims to review the recent advances in the research of ribosomopathy genes among human cancers and meanwhile,to excavate the potential role of these genes,which have not or rarely been reported in cancer,in the disease development across *** plan to establish a theoretical framework between the ribosomopathy gene and cancer development,to further facilitate the potential of these genes as diagnostic biomarker as well as pharmaceutical targets for cancer treatment.

关键词： Ribosome biogenesis Ribosomopathy gene Cancer treatment target Pharmaceutical target

Sexually Transmitted Diseases at Monkey Bay Community Hospital in Mangochi, Malawi;an Analysis of Characteristics of Common Sexually Transmitted Diseases

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Advances in Infectious Diseases 2020年第4期10卷 243-252页

作者： David S. Chung Min Jung Koh Sung Hwan Chough Seog In Moon gene K. lee Ivy Kim Yujin Kim Jae Hee Kim Lorie Kim Hyunjin Kim Eunice Kang Fatsani Manase Thomas Nyirenda School of Medicine University of Virginia Charlottesville VA USA Youth with Talents Fairfax VA USA School of Medicine Georgetwon University Washington DC USA College of Dentistry NYU New York NY USA Clinical Research Education and Management Service Lilongwe Malawi

We present the characteristics of the commonly diagnosed sexually transmitted infections (STI) at a clinic of Monkey Bay community hospital by a retrospective study. We conducted an audit of patients’ hospital records from a STIs clinic at Monkey Bay community hospital in Mangochi District (Malawi) covering a period from January 2019 to June 2019 (18 months). Data was tabulated in excel and analyses were made based on sex, age, male circumcision status, pregnancy and the pattern of STIs diagnosed within the chosen study period. A total number of 659 clients presented at STI clinic of Monkey Bay community hospital between January 2018 and June 2019. Out these clients, 409 (62%) were females and 250 (38%) were males. Most of the patients were in the age range of 25 years or above (447, 68%). Majority of the patients were HIV negative (523, 79%). Out of the 250 males, 113 (45%) were circumcised. Among female patients 56 of the 409 (14%) were pregnant. The most common presentations for all cases put together were lower abdominal pain (253, 38%), then urethral discharge (189, 29%), abnormal vaginal discharge (141, 21%), genital ulcer disease (64, 10%), in that order. Syphilis, genital warts, inguinal bubo and scrotal swelling were less common. The most common presentation in males was urethral discharge (178, 71%), while in females it was lower abdominal pain (214, 52%). Our audit showed that in Mangochi (Malawi) sexually transmitted diseases of various types are more common among young adults, females and uncircumcised men. There was no much difference in the percentage of STI’s between HIV positive and HIV negative people. These results point to an alarmingly high level of risky sexual behaviors among sexually active age groups in this part of Malawi, a country which still has one of the highest HIV prevalence in sub-Saharan Africa. This calls for continued and better research and control for transmission of STIs in the district.

关键词： Sexually Transmitted Infections (STIs) Mangochi Malawi

Blastomas of the digestive system in adults:A review

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

World Journal of Gastrointestinal Surgery 2024年第4期16卷 1030-1042页

作者： Yu Liu Tony El Jabbour Jonathan Somma Yukihiro Nakanishi Saverio Ligato Hwajeong lee Zhi-Yan Fu Department of Pathology LSU Health Sciences Center School of MedicineNew OrleansLA 70112United States Department of Pathology Hartford HealthCareHartfordCT 06102United States Department of Pathology Moffitt Cancer CenterTampaFL 33612United States Department of Pathology and Laboratory Medicine Albany Medical CenterAlbanyNY 12208United States

Blastomas,characterized by a mixture of mesenchymal,epithelial,and undifferentiated blastematous components,are rare malignant neoplasms originating from precursor blast *** review focuses on digestive system blastomas in adult patients,including gastroblastoma,hepatoblastoma,and *** is a biphasic,epitheliomesenchymal tumor,with only sixteen cases reported to *** addition to the characteristic histology,metastasisassociated lung adenocarcinoma transcript 1-glioma-associated oncogene homolog 1 gene fusion is typical,although recently novel ewing sarcoma breakpoint region 1-c-terminal binding protein 1 and patched 1-glioma-associated oncogene homolog 2 fusions have been *** is exceptionally rare in adults and can show a variety of histologic patterns which may cause diagnostic ***,primarily a pediatric tumor,displays acinar differentiation and squamoid nests with other lines of differentiation also present,especially *** approaches for these blastomas include a combination of imaging modalities,histopathological examination,and molecular *** treatment generally involves surgical resection,which may be supplemented by chemotherapy or radiotherapy in some *** vary with gastroblastoma generally showing favorable outcomes post-surgery whereas hepatoblastoma and pancreatoblastoma often have poorer outcomes,particularly in the setting of *** review highlights the complexity of diagnosing and managing these rare adult blastomas as well as the need for ongoing research to better understand their pathogenesis and improve treatment strategies.

关键词： Adult blastomas Gastroblastoma Hepatoblastoma Pancreatoblastoma Digestive system

genetic diversity of the S-type small subunit ribosomal RNA gene of Plasmodium knowlesi isolates from Sabah,Malaysian Borneo and Peninsular Malaysia

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Asian Pacific Journal of Tropical Medicine 2024年第2期17卷 84-90页

作者： Eric Tzyy Jiann Chong Joveen Wan Fen Neoh Tiek Ying Lau Kek Heng Chua Yvonne Ai-Lian Lim Ping-Chin lee Biotechnology Research Institute Universiti Malaysia SabahJalan UMS88400 Kota KinabaluSabahMalaysia Department of Biomedical Science Faculty of Medicine BuildingUniversity of Malaya50603 Kuala LumpurMalaysia Centre of Excellence for Research in AIDS(CERiA) University of Malaya50603 Kuala LumpurMalaysia Faculty of Science and Natural Resources Universiti Malaysia SabahJalan UMS88400 Kota KinabaluSabahMalaysia

Objective:To determine the genetic diversity of Plasmodium(P.)knowlesi isolates from Sabah,Malaysian Borneo and Peninsular Malaysia,targeting the S-type SSU rRNA gene and including aspects of natural selection and ***:Thirty-nine blood samples infected with *** were collected in Sabah,Malaysian Borneo and Peninsular *** S-type SSU rRNA gene was amplified using polymerase chain reaction,cloned into a vector,and *** natural selection and haplotype of the S-type SSU rRNA gene sequences were determined using DnaSP v6 and illustrated using NETWORK *** study's 39 S-type SSU rRNA sequences and eight sequences from the Genbank database were subjected to phylogenetic analysis using MEGA ***:Overall,the phylogenetic analysis showed no evidence of a geographical cluster of *** isolates from different areas in Malaysia based on the S-type SSU rRNA gene *** S-type SSU rRNA gene sequences were relatively conserved and with a purifying *** sharing of the S-type SSU rRNA gene was observed between the *** isolates in Sabah,Malaysian Borneo,but not between Sabah,Malaysian Borneo and Peninsular ***:This study suggests that the S-type SSU rRNA gene of *** isolates in Sabah,Malaysian Borneo,and Peninsular Malaysia has fewer polymorphic sites,representing the conservation of the *** features make the S-type SSU rRNA gene suitable for comparative studies,such as determining the evolutionary relationships and common ancestry among *** species.

关键词： Plasmodium knowlesi S-type small subunit ribosomal RNA genetic diversity Natural selection Haplotype

Immunoregulatory and Anti-cancer Activities of Combination Treatment of Novel Four-Herb Formula and Doxorubicin in 4T1-Breast Cancer Bearing Mice

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Journal of Integrative Medicine 2024年第4期30卷 311-321页

作者： Lea Ling-Yu Kan Ben Chung-Lap Chan Grace Gar-lee Yue LI Pei-ting Sharon Sze-Man Hon HUANG Dan-qi Miranda Sin-Man Tsang Clara Bik-San Lau Ping-Chung Leung Chun-Kwok Wong Institute of Chinese Medicine The Chinese University of Hong KongHong Kong SARChina State Key Laboratory of Research on Bioactivities and Clinical Applications of Medicinal Plants The Chinese University of Hong KongHong KongChina Department of Chemical Pathology The Chinese University of Hong KongHong Kong SARChina China-Australia International Research Centre for Chinese Medicine School of Health and Biomedical SciencesSTEM CollegeRMIT UniversityBundooraVictoriaAustralia Li Dak Sum Yip Yio Chin R&D Centre for Chinese Medicine The Chinese University of Hong Kong SARHong KongChina

Objective To investigate the in vivo immunomodulatory and anti-tumor mechanisms of the combined treatment of novel Four-Herb formula(4HF)and doxorubicin in triple-negative breast cancer(TNBC).Methods Murine-derived triple-negative mammary carcinoma cell line,4T1 cells,was cultured and inoculated into mouse mammary ***-six mice were randomly assigned into 6 groups(n=11 in ench):naive,control,LD 4HF(low dose 4HF),HD 4HF(high dose 4HF),LD 4HF+D(low dose and doxorubicin),and D(doxorubicin).Apart from the naive group,each mouse received subcutaneous inoculation with 5×10^(5)4T1 cells resuspended in 100µL of normal saline in the mammary fat *** from the day of tumor cell inoculation,tumors were grown for 6 *** LD and HD groups received daily oral gavage of 658 and 2,630 mg/kg 4HF,*** LD 4HF+D group received daily oral gavage of 658 mg/kg 4HF and weekly intraperitoneal injection of doxorubicin(5 mg/kg).The D group received weekly intraperitoneal injections of doxorubicin(5 mg/kg).The treatment naive mice received daily oral gavage of 0.2 mL double distilled water and 0.1 mL normal saline via intraperitoneal injection once a *** control group received daily oral gavage of 0.2 mL double-distilled *** treatment period was 30 *** the end of treatment,mice organs were harvested to analyze immunological activities via immunophenotyping,gene and multiplex analysis,histological staining,and gut microbiota *** Mice treated with the combination of 4HF and doxorubicin resulted in significantly reduced tumor and spleen burdens(Pgenes,cytokines,and chemokines such as C-C motif chemokine 2 and interleukin-10 of tumors were significantly downregulated(P<0.05).4HF-doxorubicin combination treatment demonstrated synergetic activities and was most effective

关键词： adjunctivetherapy breast cancer cytokines Chinese medicine tumor microenvironment

拟枝孢镰孢Fspgp2基因负调控T-2毒素产量

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

菌物学报 2024年第5期43卷 48-59页

作者：王立雯林子涵王冰冰 lee Yinwon 刘馨徐剑宏史建荣江苏大学食品与生物工程学院江苏镇江212013 江苏省农业科学院农产品质量安全与营养研究所江苏南京210014 南京大学金陵学院化学与生命科学学院江苏南京210089 首尔国立大学农业与生物技术学院韩国首尔08826

T-2毒素(T-2 toxin)是单端孢霉烯族毒素中细胞毒性最强的一种,广泛污染粮食作物,在世界多国的大麦、黑麦、燕麦、玉米等样品中均有污染报道,威胁粮食安全与人畜健康。目前T-2毒素标准物质主要是从产毒菌培养物中提取纯化获得,产率较低,... 详细信息

T-2毒素(T-2 toxin)是单端孢霉烯族毒素中细胞毒性最强的一种,广泛污染粮食作物,在世界多国的大麦、黑麦、燕麦、玉米等样品中均有污染报道,威胁粮食安全与人畜健康。目前T-2毒素标准物质主要是从产毒菌培养物中提取纯化获得,产率较低,主要依赖进口,货期长、价格昂贵。本研究筛选了一株产T-2毒素的拟枝孢镰孢Fsp1,通过基因敲除策略构建了T-2毒素负调控元件Fspgp2的敲除突变体,突变体的菌丝生长及产孢量与野生型菌株相比无显著差异,但其T-2毒素产量显著提高,在大米培养基中产量为421.98mg/kg,为构建T-2毒素宏量制备纯化技术提供菌源基础,对于粮食中T-2毒素污染风险的持续监测和控制技术的研发意义重大。

关键词： T-2毒素基因敲除拟枝孢镰孢高产突变体

Fatty acid binding protein 5 is a novel therapeutic target for hepatocellular carcinoma

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

World Journal of Clinical Oncology 2024年第1期15卷 130-144页

作者： Yan Li William lee Zhen-Gang Zhao Yi Liu Hao Cui Hao-Yu Wang Department of Gastroenterology Tianjin Third Central HospitalTianjin 300170China Biomedical Engineering Texas A&M UniversityCollege StationTX 77843United States

BACKGROUND Hepatocellular carcinoma(HCC)is an aggressive subtype of liver cancer and is one of the most common cancers with high mortality *** lipid metabolism plays crucial roles in HCC cancer cell survival,growth,and *** evidence suggests the importance of fatty acid binding proteins(FABPs)in contribution to cancer progression and metastasis;however,how these FABPs are dysregulated in cancer cells,especially in HCC,and the roles of FABPs in cancer progression have not been well *** To understand the genetic alterations and expression of FABPs and their associated cancer hallmarks and oncogenes in contributing to cancer *** We used The Cancer Genome Atlas datasets of pan cancer and liver hepatocellular carcinoma(LIHC)as well as patient cohorts with other cancer types in this *** investigated genetic alterations of FABPs in various cancer *** expression was used to determine if FABPs are abnormally expressed in tumor tissues compared to non-tumor controls and to investigate whether their expression correlates with patient clinical outcome,enriched cancer hallmarks and oncogenes previously reported for patients with *** determined the protein levels of FABP5 and its correlated genes in two HCC cell lines and assessed the potential of FABP5 inhibition in treating HCC *** We discovered that a gene cluster including five FABP family members(FABP4,FABP5,FABP8,FABP9 and FABP12)is frequently co-amplified in ***,in fact,is the most common genetic alteration for FABPs,leading to overexpression of ***5 showed the greatest differential mRNA expression comparing tumor with non-tumor *** FABP5 expression correlates well with worse patient outcomes(Pgenes in the gene sets such as CDK1(r=0.56,P=0),CDK4(r=0.49,P=0),and TP53(r=0

关键词： Hepatocellular carcinoma Fatty acid binding protein Novel target Amplification Correlated expression

Single-cell manipulation by two-dimensional micropatterning

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Innovative Optical Health Sciences 2024年第1期17卷 45-59页

作者： Xuehe Ma Haimei Zhang Shiyu Deng Qiushuo Sun Qingsong Hu Yuhang Pan Fen Hu Imshik lee Fulin Xing Leiting Pan The Key Laboratory of Weak-Light Nonlinear Photonics of Education Ministry School of Physics and TEDA Institute of Applied Physics Nankai University Tianjin 300071P.R.China State Key Laboratory of Medicinal Chemical Biology Frontiers Science Center for Cell Responses College of Life Sciences Nankai University Tianjin 300071P.R.China Collaborative Innovation Center of Extreme Optics Shanxi University TaiyuanShanxi 030006P.R.China Shenzhen Research Institute of Nankai University Shenzhen Guangdong 518083P.R.China

Cells are highly sensitive to their geometrical and mechanical microenvironment that directly regulate cell shape,cytoskeleton and organelle,as well as the nucleus morphology and genetic *** emerging two-dimensional micropatterning techniques offer powerful tools to construct controllable and well-organized microenvironment for single-cell level investigations with qualitative analysis,cellular standardization,and in vivo environment ***,we provide an overview of the basic principle and characteristics of the two most widely-used micropatterning techniques,including photolithographic micropatterning and soft lithography ***,we summarize the application of micropatterning technique in controlling cytoskeleton,cell migration,nucleus and gene expression,as well as intercellular communication.

关键词： Two-dimensional micropatterning cytoskeleton cell migration extracellular matrix intercellular communication gene expression