OBJECTIVES: To study the clinical characteristics of pediatric Behçet syndrome (BS). METHODS: A retrospective review was conducted on the medical records of children hospitalized in the Department of Pediatrics at the Second Hospital of Hebei Medical University between December 2014 and December 2024 who met diagnostic criteria for BS. RESULTS: Among 45 children with BS, 26 (58%) were male. Oral aphthous ulcers were the most common manifestation (43/45, 96%), followed by genital ulcers (23/45, 51%) and gastrointestinal involvement (18/45, 40%). Genital ulcers were more frequent in girls, whereas ocular involvement was more common in boys (P<0.05). The pathergy test was positive in 10 (22%), and HLA-B51 was positive in 13 (29%). Fecal calprotectin (FC) was elevated in 16 (36%); gastrointestinal involvement was more frequent in children with elevated FC than in those with normal FC (P<0.05). According to the respective criteria, 17 (38%) patients met the International Study Group criteria (1990), 33 (73%) met the International Criteria for Behçet Disease (2014), and 13 (29%) met the Pediatric Behçet Disease criteria (2015). CONCLUSIONS Pediatric BS shows marked clinical heterogeneity. HLA-B51 is associated with disease susceptibility.
Humans ; Behcet Syndrome/genetics* ; Male ; Female ; Child ; Retrospective Studies ; Adolescent ; Child, Preschool ; Leukocyte L1 Antigen Complex/analysis* ; HLA-B51 Antigen

The purpose of this study was to identify the tick species native to Xindi Township,Yumin County,Xinjiang,China.Preliminary morphological identification of parasitic ticks collected from animals in the area was conducted with an ultra-depth of field three-dimensional VHX 600 digital stereo microscope.Total DNA of the ticks was extracted,amplified by PCR based on the COI and ITS2 gene loci,and the posi-tive PCR products were sequenced.The sequence were a-ligned with reference sequences from the NCBI database were aligned with the Basic Local Alignment Search Tool.A genet-ic phylogenetic tree was generated with the neighbor-joining method of MEGA 7.0 software to determine the evolutionary biological characteristics of ticks.Morphological identification showed that the ticks collected from Xindi Township of Yu-min County were consistent with the characteristics of Hya-lomma asiaticum.An evolutionary tree based on the COI and ITS2 gene sequences showed that the ticks collected in this study were clustered with known H.asiaticum sequences.The PCR products of COI and ITS2 were sequenced and compared,which confirmed that the collected tick species were H.asiaticum,in agreement with the morphological and molecular biological results.These findings help to clarify the distribution of ticks in Xindi Township of Xinjiang,and provide basic data for the analysis of tick genetic and evolutionary characteristics,as reference for surveillance and control of ticks in the Xinjiang Uygur Autonomous Region.

OBJECTIVES: To improve the understanding of the clinical phenotypes and genetic characteristics of nephronophthisis (NPHP) and related syndromes in children. METHODS: A retrospective analysis was performed on the medical data of eight children with NPHP and related syndromes who were diagnosed and treated in the Department of Pediatrics of the Second Hospital of Hebei Medical University, from January 2018 to November 2022. The clinical characteristics and genetic testing results were analyzed. RESULTS: Among these eight children, there were five boys and three girls, with an age of onset ranging from 15 months to 12 years. All 8 children exhibited different degrees of renal function abnormalities when they attended the hospital. Among the eight children, two had the initial symptom of delayed development, two had the initial symptom of anemia, and two were found to have abnormal renal function during physical examination. The extrarenal manifestations included cardiovascular abnormalities in two children, skeletal dysplasia in two children, liver dysfunction in one child, retinitis pigmentosa in one child, and visceral translocation in one child. All eight children had renal structural changes on ultrasound, and four children had mild to moderate proteinuria based on routine urine test. Of all eight children, five had NPHP1 gene mutations and one each had a gene mutation in the NPHP3, IFT140, and TTC21B genes, and four new mutation sites were discovered. CONCLUSIONS Children with NPHP and related syndromes often have the initial symptom of delayed development or anemia, and some children also have extrarenal manifestations. NPHP and related syndromes should be considered for children with unexplained renal dysfunction, and high-throughput sequencing may help to make a confirmed diagnosis.
Child ; Humans ; Retrospective Studies ; Syndrome ; Kidney Diseases, Cystic/genetics* ; Mutation ; Phenotype

This study intends to develop a high performance liquid chromatography-diode array detection(HPLC-DAD) method for simultaneous determination of chlorogenic acid, 2-hydroxymethyl-3-hydroxyl-1-butene-4-O-β-D-(6″-O-caffeoyl)-glucopyranoside, pubescenoside B, huazhongilexone-7-O-β-D-glucopyranoside, rutin, isochlorogenic acid B, isochlorogenic acid A, isochlorogenic acid C in Ilex hainanensis. The HPLC conditions are as follows: Waters XBridge C_(18 )column(4.6 mm×250 mm, 5 μm), mobile phase of 0.5% formic acid in water(A)-acetonitrile(B), gradient elution(0-8 min, 5%-12% B; 8-18 min, 12%-18% B; 18-30 min, 18%-25% B; 30-40 min, 25%-30% B; 40-42 min, 30%-80% B; 42-45 min, 80% B) at the flow rate of 0.8 mL·min~(-1), detection wavelengths of 282, 324, and 360 nm, column temperature of 25 ℃, and injection volume of 5 μL. The content of the 8 phenols in 8 samples was 0.30-6.29, 0.29-3.27, 0.15-10.4, 0.51-5.85, 0.49-9.02, 0.51-4.68, 1.93-13.4, and 0.87-5.95 mg·g~(-1), respectively. Moreover, the content of phenols in the samples collected in October was higher than that of samples harvested in other months. The established method is accurate and sensitive for the determination of phenols in I. hainanensis, which is useful for the quality improvement of this herbal medicine.
Chromatography, High Pressure Liquid ; Drugs, Chinese Herbal ; Ilex ; Phenols

This study aims to establish an HPLC method for the simultaneous determination of 6 main components, including chlorogenic acid, 3,4-dicaffeoylquinic acid,3,5-dicaffeoylquinic acid,4,5-dicaffeoylquinic acid, pellitorine and neopellitorine B in Achil-leae Herba. HPLC analysis was performed on a Merck Purospher STAR RP-18 endcapped(4.6 mm×250 mm, 5 μm), with a mobile phase consisting of 0.05% phosphoric acid solution(A)-acetonitrile(B) at a flow rate of 1 mL·min~(-1)(0-7 min,12%-14% B;7-10 min,14%-17% B;10-25 min,17%-22% B;25-35 min,22%-35% B;35-51 min,35%-80% B;51-60 min,80%-90% B). The detection wavelength was 254 nm and the column temperature maintained at 30 ℃, and the injection volume was 5 μL. The standard curves revealed a good linear relationship. The contents of 6 components were 0.404%-2.116% for chlorogenic acid, 0.160%-0.892% for 3,4-dicaffeoylquinic acid, 0.608%-1.464% for 3,5-dicaffeoylquinic acid, 0.168%-0.868% for 4,5-dicaffeoylquinic acid, 0.122%-1.234% for pellitorine, 0.065%-0.312% for neopellitorine B, respectively. Both cluster and principal component analysis can distinguish the research data in anthesis and pre-anthesis by software Chempattern. There were obviously differences in the different harvest time. Therefore, attention should be paid to the harvesting time of the herb. The method can be used to determine the contents of six main components, and can provide reference for the improvement of quality standard of Achilleae Herba.
Chlorogenic Acid ; Chromatography, High Pressure Liquid ; Drugs, Chinese Herbal ; Principal Component Analysis

This work aims to establish an HPLC specific chromatogram and determine six components of Vernonia anthelmintica with chlorogenic acid, isochlorogenic acid B, isochlorogenic acid A, isochlorogenic acid C, scutellarein and luteolin as index components. HPLC analysis was performed on a Waters Xbridge C_(18) column(4.6 mm×250 mm, 5 μm) with gradient elution of acetonitrile-0.05% trifluoroacetic acid solution at a flow rate of 1.0 mL·min~(-1). The detection wave length was 360 nm and the column temperature was 30 ℃. Chemometrics software Chempattern was employed to analyze the data. HPLC specific chromatogram of V. anthelmintica was established and six characteristic peaks were marked. Six characteristic peaks were simultaneously determined by HPLC within 50 min. The contents of the six components in 13 batch samples of V. anthelmintica were 0.14%-0.68%, 0.44%-0.74%, 0.63%-1.01%, 0.14%-0.71%, 0.15%-0.26% and 0.010%-0.030%, respectively. The HPLC specific chromatogram of V. anthelmintica, together with determination of six components showed strong specificity, and it can be used for the quality control of the crude drug.
Chromatography, High Pressure Liquid ; Drugs, Chinese Herbal/chemistry* ; Phytochemicals/analysis* ; Quality Control ; Vernonia/chemistry*

The present study is to develop an HPLC-ELSD method for simultaneous determination of three pairs of triterpenoid isomers, Ilexsaponin A₁, Ilexhainanoside D, Ilexgenin A, 3β, 19α-dihydroxyolean-12-ene-24, 28-dioic acid (ilexhainanin E) ursolic acid and oleanic acid in the leaf of Ilex hainanensis, which could provide evidence to the quality control of this herb. The six constituents were measured on a Waters XBridge C₁₈ column (4.6 mm×250 mm, 5 μm), with a mobile phase consisting of methanol (A)- 0.5% formic acid in water (B) at a flow rate of 1.0 mL·min⁻¹ (0-18 min，70%-85% A，18-20 min，85%-95% A；20-35 min，95% A). The carrier gas was N₂, and the pressure was 2.8 L·min⁻¹. The drift tube in this experiment were set at 70 °C. The injection volume was 10 μL. The contents of the six triterpenoids in 6 samples were 3.7-8.5, 10.3 -22.1, 2.8-5.9, 7.8-14.1, 2.6-3.8 and 8.8-11.9 mg·g⁻¹, respectively. The established method is proved to be accurate and sensitive for the determination of triterpenoids in Ilicis Hainanensis Folium, and may be used for the quality improvement of this herb.

This study was performed to investigate the guaianolides from the aerial parts of Artemisia myriantha. The chemical constituents were isolated by chromatographic columns over silica gel, Sephadex LH-20, and ODS, as well as Semi-prep HPLC methods, and their structures were identified by NMR and MS data. Ten compounds were isolated and identified as follows: artemyriantholide E (1), tanaphillin (2), 1β, 10β-epoxydehydroleucodin (3), 5-hydroxyleucodin (4), dehydrocostuslactone (5), 3-O-methyl-iso-secotanapartholide (6), roxbughianin A (7), dehydroleucodin (8), arglabin (9), and 8α-acetoxyarglabin (10). Compound 1 was a new compound, and compounds 2-7 were isolated from this plant for the first time. Compound 3 exhibited selective cytotoxicity against human liver cancer (Bel-7402) with IC₅₀ value of 5.35 μmol·L⁻¹, and 6 against human gastric cancer (BGC-823) with IC₅₀ value of 2.68 μmol·L⁻¹, respectively.

The present study is to investigate the chemical constituents from the aerial parts of Artemisia myriantha. The chemical constituents were isolated by column chromatographies over silica gel, Sephadex LH-20, ODS and Semi-prep HPLC, and the structures were identified by NMR and MS data. Thirteen known compounds were isolated and identified as: blumenol A (1),(+)-dehydrovomifoliol (2),(+)-3-hydroxy-β-ionone (3),(3R, 6R, 7E)-3-hydroxy-4, 7-megastigmadien-9-one (4),(-)-10-oxo-isodauc-3-en-15-oic acid (5),isoerivanin (6),eudesmafraglaucolide (7), artanomalide A (8),13-acetoxy-3β-hydroxy-germacra-1(10) E,4E,7(11)-trien-12,6α-olide (9),13-acetoxy-3β-tigloyl-germacra-1(10) E, 4E, 7(11)-trien-12, 6α-olide (10),13-acetoxy-3β-(3-methylbutanoyl)-germacra-1(10)E, 4E, 7(11)-trien-12, 6α-olide (11),3,9-diacetoxy-13-hydroxy-1(10), 4, 7(11)-germacratrien-12,6α-olide (12), and 8α-angeloyloxycostunolide (13). Compounds 1-6 and 13 were obtained from the genus Artemisia for the first time, and 7-9 and 12 were isolated from this plant for the first time. Compound 8 exhibited selective cytotoxicity against human colon cancer (HCT-8) and human gastric cancer (BGC-823) with IC₅₀ values of 2.33 and 4.53 μmol•L ⁻¹, respectively.

OBJECTIVESynthesis and identification of complete antigen of rutin, the traditional Chinese medicine active ingredient, and develop rapid detection of rutin using enzyme-linked immunoassay method (ELISA). Immunogenicity of the complete antigen was also studied.

METHODPrepare the complete antigen by sodium periodate solution and identified by UV scanning and SDS-PAGE test. Male New Zealand white rabbits were immunized by the antigen to obtain the antiserum.

RESULTThe results of UV analysis showed that the coupling ratio of complete antigen is 13: 1. SDS-PAGE display of the artificial antigen was delayed compared with bovine serum protein. The titer of rutin antibody is 1:4 000. The sensitivity of IC50 was 5.37 mg x L(-1), the lowest detection limit was 1 mg x L(-1), the average recovery was 102%, the intra and interspecific RSD were less than 10%, cross-reactivity rate of antibodies and other analogs were less than 1%.

CONCLUSIONRutin complete antigen was synthesized successfully, and the rapid detection of rutin by ELISA method was successfully established.

Animals ; Antibody Specificity ; immunology ; Antigens ; immunology ; Cattle ; Cross Reactions ; immunology ; Electrophoresis, Polyacrylamide Gel ; Enzyme-Linked Immunosorbent Assay ; Immune Sera ; immunology ; Immunization ; Male ; Periodic Acid ; chemistry ; Rabbits ; Rutin ; chemical synthesis ; immunology ; Serum Albumin, Bovine ; immunology ; Solutions ; chemistry