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Studies on the Structure of Kansuinine A from Euphorbia kansui

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Chinese Chemical Letters 2002年第12期13卷 1178-1180页

作者： qin pan Zhi Da MIN Department of Natural Medicine Chemistry China Pharmaceutical UniversityNanjing 210009

Kansuinine A is a macrocyclic jatrophane diterpene that was isolated from Euphorbia kansui. Further investigation of the structure was revealed that the benzoyl group located at C-8 and the position of C-3 was the pr... 详细信息

关键词： Euphorbia kansui kansuinine A.

Noninvasive diagnosis of nonalcoholic steatohepatitis:Emerging approaches

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Hepatobiliary & pancreatic Diseases International 2019年第1期18卷 1-3页

作者： qin pan Jian-Gao Fan Department of Gastroenterology Xinhua Hospital Shanghai Jiaotong University School of Medicine Department of Pediatric Gastroenterology Xinhua Hospital Shanghai Jiaotong University School of Medicine Shanghai Key Laboratory of Children’s Digestion and Nutrition

Nonalcoholic steatohepatitis(NASH),a severe type of nonalcoholic fatty liver disease(NAFLD),progresses toward liver fibrosis/cirrhosis,liver failure,and furthermore,hepatocellular carcinoma(HCC)[1].The pathological manifestations are hepatocyte steatosis( >5%),lobular inflammation,and ballooning degeneration,with or without fibrogenesis[2].NAFLD/NASH results from sedentary life style,western diet,and *** have witnessed the conversion of spectrum of chronic liver diseases from viral hepatitis as the leading cause to NAFLD/NASH worldwide[3].Diagnosis of NASH is therefore of great importance for the clinical management,evaluation,and follow-up.

关键词： Nonalcoholic NASH

Facile preparation of covalent organic frameworks@alginate composite beads for enhanced uranium(Ⅵ) adsorption

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Rare Metals 2022年第4期41卷 1323-1331页

作者： pan Duan Duo-Yu Lin Wei-Ting Yang Xiao-Jing Huang A-Hui Sun qin-He pan Key Laboratory of Advanced Materials of Tropical Island Resources Ministry of EducationChemical Engineering and TechnologyHainan UniversityHaikou 570228China

Covalent organic frameworks(COFs) have broad application prospects in adsorption and ***,as COFs are generally in powder form,their superior performance at the laboratory scale is difficult to transfer into pilot-or industrial-scale ***,there is a strong and urgent need to structure COFs into monolithic ***,a facile strategy was developed to prepare COFs@alginate composite *** composite beads comprising different COFs including TpPa-1(2,4,6-triformylphloroglucinol(Tp) and p-phenylenediamine(Pa-1)as monomers),TpDb(Tp and 2,5-diaminobenzonitrile(Db)as monomers) and TpTt(Tp and 1,3,5-triazine-2,4,6-triamine(Tt) as monomers) with controlled COF loading and product size have been facilely achieved via this strategy,validating the applicability of this ***,the representative TpDb@alginate composite beads showed good adsorption performance of uranium(VI) in aqueous solution with high adsorption capacity(635 mg·g^(-1)),good interference immunity and *** work offers a practical approach for incorporation of COFs into polymer matrix,which can serve as potential adsorbents for radioactive wastewater treatment.

关键词： Covalent organic frameworks Alginate Composite beads Uranium Adsorption

Application of an Optical Biosensor to Study the Interaction between Porphyrins and Wheat Germ Agglutinin

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Wuhan University Journal of Natural Sciences 2006年第2期11卷 432-436页

作者： qin Yimin pan Nina ZOU Guolin College of life Sciences Wuhan University Wuhan 430072 Hubei China

An optical biosensor with a stirred cuvette has been used to monitor the interaction of immobilized wheat germ agglutinin （WGA） with two water-soluble cationic porphyrins, The association constants （Ka） of the free base porphyrin and its Zn（Ⅱ） complex form were 2. 66 and 27.31 × 10^5 l,/mol at 20 ℃ respectively. The interactions of the free base porphyrin were further investigated at temperatures between 15 ℃ and 37 ℃, The thermodynamics parameters, changes in free energy, enthalpy and entropy, were -31.23, 22.92, 54.15 ld/mol respectively. The heat capacity change was -355.53 J · mol^-1·K^-1 The binding was driven by entropic contribution, and showed strong enthalpy-entropy compensation. It was governed primarily by hydrophobic forces.

关键词： porphyrins wheat germ agglutinin interaction optical biosensor

Comparison of the prevalence of sarcopenia in geriatric patients in Xining based on three different diagnostic criteria

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World Journal of Clinical Cases 2022年第33期10卷 12200-12207页

作者： Shi-qin pan Xiao-Fang Li Ming-qin Luo Yue-Mei Li Department of Nuring Qinghai Provincial People’s HospitalXining 810000Qinghai ProvinceChina

BACKGROUND Sarcopenia is an age-related decline in skeletal muscle mass,which depends on an assessment of muscle strength and muscle *** diagnostic definition of sarcopenia varies by *** To determine the optimal diagnostic criteria for sarcopenia in a plateau *** off values for the components of diagnostic algorithms for sarcopenia in plateau populations should consider *** One hundred and fifty subjects aged>60 years attending a tertiary comprehensive hospital in the city of Xining(elevation:2260 m)between October and December 2018 were *** strength,muscle mass,and physical performance were *** was diagnosed according to the Asian Working Group for Sarcopenia(AWGS)2019 criteria,Beijing criteria,and Lasha *** Across diagnostic criteria,there were significant differences in the prevalence of sarcopenia in the overall population and stratified by *** prevalence of sarcopenia measured by the AWGS 2019 or Lasha criteria was significantly higher in female compared to male *** males,the prevalence of sarcopenia measured by the Beijing criteria was significantly higher in subjects who identified as Han compared to *** females,there were no significant differences in the prevalence of sarcopenia by ethnicity according to any *** The Lasha criteria provided a lower prevalence of sarcopenia(males,8.7%;females,22.41%;overall,14%)and were able to differentiate between males and *** Lasha criteria are likely most appropriate for detection of sarcopenia in this plateau *** recommend the Lasha criteria for detection of sarcopenia in Xining.

关键词： Ethnic Diagnostic criteria Sarcopenia Prevalence Plateau

Development of the precision feeding system for sows via a rule-based expert system

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International Journal of Agricultural and Biological Engineering 2023年第2期16卷 187-198页

作者： Chong Chen Xingqiao Liu Chaoji Liu qin pan School of Electrical Engineering Yancheng Institute of TechnologyYancheng 224051JiangsuChina School of Electrical and Information Engineering Jiangsu UniversityZhenjiang 212013JiangsuChina

To precisely meet the nutritional requirements of sows during the stages of pregnancy and lactation,a precision feeding system was developed by using the intelligent sow feeder combined with a rule-based expert system and the Internet of Things(IoTs).The model of uncertain knowledge representation was established for inference by using the certainty *** daily feeding amount of each sow was calculated by the expert *** improved pattern matching algorithm Reused Degree Model-RETE(RDM-RETE)was proposed for the decision of daily feeding amount,which sped up inference by optimizing the RETE network topology.A prediction model of daily feeding amount was established by a rule-based expert system and the precision feeding was achieved by an accurate control technology of variable *** experimental results demonstrated that the HASH-RDM-RETE algorithm could effectively reduce the network complexity and improve the inference *** feeding amount decided by the expert system was a logarithmic model,which was consistent with the feeding law of lactating *** inferential feeding amount was adopted as the predicted feed intake and the coefficient of correlation between predicted feed intake and actual feed intake was greater than or equal to *** sow was fed at different feeding intervals and different feed amounts for each meal in a *** feed intake was 26.84% higher than that of artificial feeding during lactation days(p<0.05).The piglets weaned per sow per year(PSY)can be increased by 1.51 compared with that of relatively high levels in domestic pig *** system is stable in feeding and lowers the breeding cost that can be applied in precision feeding in swine production.

关键词： precision feeding expert system pattern matching lactating sows intelligent sow feeder feed intake

Morphological traits for sex identification of the oriental armyworm,Mythimna separata(Lepidoptera:Noctuidae)

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Journal of Integrative Agriculture 2020年第6期19卷 1458-1463页

作者： CHEN Lin pan qin-jian Muhammad Saad WAQAS LIU Tong-xian State Key Laboratory of Crop Stress Biology for Arid Areas/Key Laboratory of Integrated Pest Management on the Loess Plateau Ministry of AgricultureNorthwest A&F UniversityYangling 712100P.R.China State Key Laboratory of Rice Biology/MOA Key Lab of Molecular Biology of Crop Pathogens and Insects/Institute of Insect Sciences Zhejiang UniversityHangzhou 310058P.R.China

The oriental armyworm,Mythimna separata(Lepidoptera:Noctuidae)is a harmful pest which causes heavy loss in agricultural *** identification of *** is very important for understanding the biology and management of this *** of fast and convenient methods to identify *** female and male is the necessary prerequisite for con ducting gender-related *** this study,new methods to differentiate sex of *** at pupal and adult stages were *** results showed that posterior abdominal segments containing genital organs which are morphological traits to differentiate female and *** openings are important characters for the female and male pupae *** female pupa,it locates on the ventral side of eighth and ninth abdominal segments and appears as a visible longitudinal suture;for male pupa,it locates on the ventral side of the ninth abdominal segment and appears as a short slit surrounded by a pair of visible semicircular *** numbers are another indicator for sex differentiation of *** female has three-bristled frenulum and each male has one bristled-frenulum near the base of hind wing of each side of moth *** confirmed the two sex differentiation methods manually by dissecting genitalia of adults and found their genger was as same as what we examined the sex of pupae and adults using the morphological methods.

关键词： sex identification pupa and adult genital opening frenulum genitalia

Colonic metastasis after resection of primary squamous cell carcinoma of the lung:A case report and literature review

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World Journal of Gastroenterology 2014年第19期20卷 5930-5934页

作者： Hai-Zhou Lou Chun-Hua Wang Hong-Ming pan qin pan Jin Wang Department of Medical Oncology Sir Run Run Shaw HospitalCollege of MedicineZhejiang University Bachelor of nursing Department of AdmissionHangzhou Xiasha Hospital Department of Pathology Sir Run Run Shaw HospitalCollege of MedicineZhejiang University

Lung cancer is a common malignancy in the world; however symptomatic colonic metastasis from primary lung cancer is rare. A 64-year-old man was originally found poorly differentiated squamous cell carcinoma of right lung and received right lower lobectomy and lymph node dissection. Three years later, the patient presented to our emergency room with the symptom of upper abdominal pain and weight loss. Abdominal palpation and computed tomography scan of the abdomen revealed a large mass measuring 7.6 cm × 8.5 cm in the ascending colon. Colonoscopy and biopsy revealed poorly differentiated squamous cell carcinoma with similar morphological pattern to that of the previous lung cancer. Chemotherapy was given and the patient died 5 mo later. Lung cancer metastatic to the colon confers a poor prognosis: overall survival ranged from 5 wk to 1 year, with a median survival of 3 mo after the diagnosis of the colonic metastasis.

关键词： Lung neoplasm Colonic metastasis Squamous cell carcinoma Chemotherapy

Bimetallic active site nuclear-shell heterostructure enables efficient dual-functional electrocatalysis in alkaline media

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Rare Metals 2023年第9期42卷 3024-3033页

作者： Yu Cheng Xi Zhou qin-Min pan Li-Fang Zhang Yu-Feng Cao Tao Qian School of Chemistry and Chemical Engineering Nantong UniversityNantong226019China Institute of Chemical Industry of Forestry Products Chinese Academy of ForestryKey Lab.of Biomass Energy and MaterialNanjing210000China School of Chemical and Environmental Engineering College of ChemistryChemical Engineering and Material ScienceSoochow UniversitySuzhou215123China Department of Chemical Engineering University of WaterlooWaterlooONN2L 3G1Canada

Hydrogen,as a green and clean next-generation fuel,is a key to achieving the goal of carbon *** an electrocatalyst with bifunctional hydrogen evolution and oxygen evolution activity in the same electrolyte is a key technology for producing hydrogen via water ***,a bimetallic active site catalyst,which possessed an edge-riched MoS_(2)nanoflakes array vertically growing on cubic CoS_(2),forming a nuclear-shell heterogeneous configuration,termed CSC-Mo S_(2)@Co S_(2).was reported The optimal CSC-Mo S_(2)@Co S_(2)-24 possessed good dualfunctional electrocatalytic activity(hydrogen evolution(HER),10 m A·cm^(-2)@241.5 m V and oxygen evolution(OER),10 m A·cm^(-2)@350 m V).Especially,CSC-Mo S_(2)@CoS_(2)-24 exhibited an extremely high mass activity for HER,and only required an overpotential of~550 m V when reaching a large current density of 1422 m A·mg^(-1),which was20.6-fold that of the bulk CoS_(2)(69 m A·mg^(-1)),as well as exhibiting stability of up to 100 *** good electrocatalytic performance was attributed to the nuclear-shell heterostructure of Mo S_(2)@CoS_(2)hybrid could bring critical synergies,improving efficient mass transfer and electron transfer processes between Co S_(2)and Mo S_(2),which collaboratively promoted the electrocatalytic *** is foreseeable that the method proposed in this work will have guiding value for the preparation of dual-functional electrocatalysts with multi-interface heterostructures by assembling layered sulfides on cubic sulfides.

关键词： Dual-functional electrocatalysts Nuclearshell cubic heterostructure Edge-riched Bimetallic active site Strong interaction