1.In-Situ Controlled Growth of NiCr Layered Double Hydroxide Nanosheets on Nichrome Alloy Fibers for Solid Phase Microextraction of Chlorophenols
Hai-Xia LIU ; Hong-Hong RAO ; Fang LIU ; Yan-Ping ZHENG ; Yong-Qiang JIANG
Chinese Journal of Analytical Chemistry 2025;53(3):481-491,后插1-后插4,封3
Nichrome(NiCr)wire with strong mechanical properties,excellent flexibility,good corrosion resistance and high thermal stability was selected as a promising fiber substrate to replace the fragile fused-silica counterpart.The NiCr layered double hydroxide nanosheets(NiCr LDHs NSs)were in-situ grown on the NiCr fiber substrate.Then,the extraction performance of the NiCr@NiCr LDHs NSs fiber was evaluated using four kinds of chlorophenol(CPs)as model compounds combined with high performance liquid chromatography-ultraviolet detection(HPLC-UV).The results showed that the assembled fibers exhibited superior extraction selectivity and enhanced extraction efficiency for CPs in comparison to commercial PA,PDMS,and PDMS/DVB fibers.Under the optimized experimental conditions,the established method showed good linearity in the range of 0.2-200 μg/L,with coefficient of determination(R2)>0.9989.The limits of detection(LODs)and limits of quantification(LOQs)were 0.050-0.157 μg/L and 0.165-0.502 μg/L,respectively.Relative standard deviations(RSDs)for intra-day and inter-day analyses ranged from 2.85%to 4.05%and from 3.16%to 4.96%,respectively.The developed method with the constructed fiber was applied to preconcentration and detection of different types of CPs in real water samples,showing satisfactory recoveries ranging from 80.0%to 106.9%,with RSDs of 3.12%-7.81%.Moreover,the NiCr@NiCr LDHs NSs fiber could maintain good extraction performance even after 240 extraction-desorption cycles.
2.Interpretation of Chinese Expert Consensus on Integrated Chinese and Western Medicine Management of Wilson Disease-related Renal Damage
Wenming YANG ; Ke DIAO ; Hu XI ; Zhihong RAO ; Taohua WEI ; Yulong YANG ; Shuzhen FANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(20):168-176
Wilson disease is a copper metabolism disorder caused by mutations in the ATP7B gene, which encodes a copper-transporting ATPase β, and can result in multisystem damage. The kidneys are the third most commonly affected organs after the liver and brain. In recent years, numerous diagnostic and treatment guidelines for Wilson disease have emerged. However, most of these focus primarily on hepatic and neurological manifestations and their management, with limited coverage of renal involvement. The high incidence, low awareness, and lack of clinical specificity of Wilson disease-related renal damage (WDRD) have made early detection and intervention particularly challenging in clinical practice. To further optimize the treatment of patients with WDRD, improve clinical diagnosis and management, and enhance patients' quality of life, the Neurology Committee of the Chinese Association of Integrative Medicine, in April 2024, initiated a revision of the first expert consensus on the integrated diagnosis, treatment, and management of WDRD. This effort brought together experts in hepatology, encephalopathy (neurology), and nephrology from many tertiary-level grade A hospitals and research institutions across China. Through comprehensive literature review and integration of frontline clinical experience, the expert group jointly developed Chinese Expert Consensus on Integrated Chinese and Western Medicine Management of Wilson Disease-related Renal Damage (hereinafter referred to as the "Consensus"). This article provides a detailed interpretation of the Consensus in terms of diagnostic criteria, traditional Chinese medicine (TCM) syndrome differentiation and treatment classification, and comprehensive disease management, aiming to better guide clinical application. Regarding diagnostic criteria, the Consensus integrates the latest standards in China and abroad, highlights the importance of biochemical diagnosis, and compensates for the limitations of genetic testing. In the area of TCM syndrome differentiation and treatment, the Consensus refines four major syndrome types, introduces a newly defined syndrome, i.e., phlegm, blood stasis, and heat accumulation, and elaborates on treatment principles, prescriptions, and clinical modification rules for each syndrome. For comprehensive disease management, the Consensus emphasizes multi-dimensional intervention strategies, including diet, exercise, emotional regulation, medication, and medical care, with the goal of maximally controlling the progression of renal dysfunction and helping patients achieve a better quality of life.
3.Effect of demethylase FTO knockout on 5-HT-induced abnormalities of coronary smooth muscle contractile function in mice with diabetes mellitus
Zi-fan WANG ; Liu-xiang JIANG ; Mei-ying LIANG ; Meng-yun LIU ; Mei-jiang CHEN ; Hui YANG ; Fang RAO ; Chun-yu DENG
Chinese Pharmacological Bulletin 2025;41(2):315-322
Aim To explore the influence of demethy-lase fat mass and obesity-related genes(FTO)on the abnormal contractile function of diabetic coronary smooth muscle.Methods Smooth muscle specific FTO knockout mice(FTOSMKO)were prepared by Cre-loxP recombinant technology.They were divided into four groups:control(WT)group,diabetes model group(DM),FTO knockout group(FTOSMKO),and FTOSMKO diabetic group(FTOSMKO-DM),with 15 mice in each group.Diabetic mice were prepared by intraperitoneal injection of streptozotocin(STZ);the remaining mice were injected with an equal amount of citric acid-sodi-um citrate buffer.The effects of 5-HTon the contractile response of coronary artery smooth muscle in the four groups of mice were observed by the technique of small-vessel ring tensiometry.Western blot and Dot blot were used to detect the changes of FTO protein and N6-methyladenine(m6A)methylation modification levels in mouse vascular tissues.Results Compared with the WT group,the DM group had significantly higher blood glucose(P<0.01)and lower body weight(P<0.05);the level of FTO protein in aorta of DM group increased(P<0.01),and the level of m6A methylation modification decreased(P<0.01).The 5-HT-induced contractile response significantly de-creased in the DM group compared with the WT group(P<0.01),whereas the contractile response signifi-cantly increased in the FTOSMKO-DM group compared with the DM group(P<0.01);the non-L-type calci-um channel-mediated vascular smooth muscle contrac-tile response was enhanced in the FTOSMKO-DM group,among which,the contractions induced by 1,4,5-triphosphate inositol receptor(IP3R)and caffeine-ac-tivated ranine receptor(RyR)mediated by sarcoplas-mic reticulum calcium release both significantly in-creased(P<0.05).Conclusions Specific knock-down of smooth muscle FTO improves coronary artery responsiveness to the vasoconstrictor 5-HT in diabetic mice,which may be related to abnormalities in the FTO-mediated 5-HT receptor signaling pathway.
4.Application value of low-temperature plasma bipolar forceps in thyroid cancer surgery
Lingzhao MENG ; Xiaopeng QU ; Pengyu TAO ; Fan YANG ; Yuansheng RAO ; Ru WANG ; Jugao FANG
Journal of Capital Medical University 2025;46(3):553-558
Objective To explore the application value of low-temperature plasma bipolar forceps in open thyroid cancer surgery.Methods The clinical data of 30 patients with differentiated thyroid cancer treated with low-temperature plasma bipolar forceps by our team from May 2021 to October 2024 were retrospectively analyzed.And 30 patients with differentiated thyroid cancer treated with monopolar electrocautery+ultrasonic scalpel were selected as the control group.The surgical procedures for both groups were thyroid lobectomy,isthmus resection+ipsilateral level Ⅵ lymph node dissection.The age,gender,body mass index(BMI),tumor TNM stage,operation time,intraoperative blood loss,48 h postoperative drainage volume,and surgical complications of the two groups were compared.Results There were no significant differences in age,gender,BMI,and tumor TNM stage between the two groups.The operation time,intraoperative blood loss,48 h postoperative drainage volume,and the incidence of postoperative transient hypoparathyroidism in the low-temperature plasma bipolar forceps group were significantly less than those in the control group(P<0.05).There were no occurrences of postoperative subcutaneous hematoma,permanent recurrent laryngeal nerve palsy,and permanent hypoparathyroidism in both groups.Conclusion In thyroid cancer surgery,low-temperature plasma bipolar forceps can not only achieve fine detailed operations,but also effectively protect the blood supply of the recurrent laryngeal nerve,superior laryngeal nerve,and parathyroid glands.It has less trauma and a faster postoperative recovery,and is worthy of clinical promotion and application.
5.MED15-TFE3 renal cell carcinoma: a clinicopathological and molecular analysis
Xiaotong WANG ; Rusong ZHANG ; Rui LI ; Xuan WANG ; Ru FANG ; Qiuyuan XIA ; Qiu RAO
Chinese Journal of Pathology 2025;54(1):16-22
Objective:To investigate the clinicopathological features, immunophenotype, molecular characteristics, and differential diagnosis of MED15-TFE3 gene fusion renal cell carcinoma (MED15-TFE3 RCC).Methods:A total of 12 MED15-TFE3 RCCs, diagnosed from 2016 to 2023, were collected from the Department of Pathology of Nanjing Jinling Hospital, Nanjing University School of Medicine, Nanjing, China for clinicopathologic, immunohistochemical, fluorescence in situ hybridization (FISH) and RNA sequencing (RNA-seq) analyses and follow-up. In addition, its diagnosis and differential diagnosis were also explored.Results:There were five males and seven females. The patients′ ages ranged from 16 to 60 years, with an average age of 40.4 years. The follow-up time ranged from 15 to 92 months, and no recurrence or metastasis was observed. Histologically, 6 cases exhibited extensive cystic structures with almost no solid sheet components, while the remaining 6 cases displayed a cysto-solid growth pattern. The cytoplasm of the tumor cells appeared flocculent, with a clear or faintly eosinophilic appearance, and nucleoli were inconspicuous. Psammoma bodies were observed in 12 cases. There was deposition of basement membrane-like material in 5 cases. All cases showed strong expression of TFE3, GPNMB, Cathepsin K, Melan A, and PAX8, while no expression of CAⅨ or CK7. FISH analyses showed that all 12 cases were positive for the MED15-TFE3 fusion, while the MED15-TFE3 fusion gene and specific fusion sites were detected in 2 cases using RNA-seq.Conclusions:MED15-TFE3 RCC is a type of TFE3-rearranged renal cell carcinoma that exhibits both identifiable diagnostic characteristics and highly deceptive morphology. Its distinct extensive cystic structure can be easily confused with multilocular cystic renal neoplasm of low malignant potential, necessitating careful differentiation in routine practice.
6.Species identification and antimicrobial resistance of bacteria isolated from sepsis patients in a tertiary hospital in Shanghai from 2021 to 2024
Panpan LYU ; Guihua RAO ; Qiang WANG ; Yue JIANG ; Fang ZHAO ; Mingliang CHEN
Chinese Journal of Microbiology and Immunology 2025;45(7):560-566
Objective:To identify the bacteria isolated from sepsis patients in a tertiary hospital in Shanghai and analyze their antimicrobial resistance features.Methods:This study included 439 patients with clinically diagnosed sepsis who underwent microbiological culture in a tertiary hospital in Shanghai from July 2021 to October 2024. Results of microbiological culture and antimicrobial susceptibility testing were retrospectively collected and analyzed. Differences between groups were analyzed using Chi-square test and Fisher′s exact test. Results:The positive rate of microbiological culture was 49.0% (215/439). The positive rate of blood culture was 24.1% (93/386) and 100 strains were isolated from the samples, including 57 Gram-negative bacteria (57.0%). The predominant isolates in blood samples were Escherichia coli, Klebsiella pneumoniae, and coagulase-negative staphylococci. The positive rate of bacterial culture from bronchoalveolar lavage fluid samples was 84.1% (37/44), with Klebsiella pneumoniae, Acinetobacter baumannii, and Pseudomonas aeruginosa being the predominant strains. The positive rate of bacterial culture from urine samples was 35.6% (127/357), with Escherichia coli, Klebsiella pneumoniae, and Enterococcus faecium being the most common. Escherichia coli, Klebsiella pneumoniae, Enterococcus faecium, coagulase-negative staphylococci, Pseudomonas aeruginosa, and Acinetobacter baumannii exhibited high resistance rates to fluoroquinolones [46.8% (29/62)-97.0% (32/33)]. The resistance rates of Acinetobacter baumannii to most commonly used antibiotics were >80.0%. The resistance rates of Escherichia coli and Klebsiella pneumoniae to the third-generation cephalosporins ranged from 41.8% (28/67) to 66.0% (31/47). Carbapenem resistance was observed in 38.1% (24/63)-40.3% (25/62) of Klebsiella pneumoniae isolates, and most of the isolates from bronchoalveolar lavage fluid samples showed a higher resistance rate than those from blood or urine samples ( P<0.05). Conclusions:The positive rate of bacterial culture is nearly 50% in this study, with Gram-negative bacteria being the most common. Six major pathogenic bacteria exhibit high resistance rates to fluoroquinolones. Klebsiella pneumoniae isolates have high resistance rates to the third-generation cephalosporins and carbapenems, with significant differences in the resistance rate between isolates from different samples, and it should be cautious to choose the third-generation cephalosporins and carbapenems in clinical practice.
7.A case of encapsulated empyema caused by Parvimonas micra infection
Guihua RAO ; Qiang WANG ; Fang ZHAO ; Mingliang CHEN
Chinese Journal of Laboratory Medicine 2025;48(9):1231-1234
A 37-year-old male patient was admitted to a certain tertiary hospital in Shanghai on May 10, 2024 due to "sudden cough accompanied by chest pain for 2 days". Smear examination of pleural effusion revealed Gram-positive cocci. A positive result was reported after 3.8 days of anaerobic culture, and the isolate was identified as Parvimonas micra by mass spectrometry. Based on the patient′s medical history, imaging and etiological examination results of pleural effusion, the patient was diagnosed with encapsulated empyema caused by Parvimonas micra infection. After anti-infection treatment with imipenem and linezolid and pleural effusion drainage, the patient improved and was discharged. Whole-genome sequencing analysis revealed that this bacterium carried the drug resistance gene tetM and phylogenetic tree analysis showed that it was closely related to a strain from an apical abscess in South Korea.
8.Treatment of Renal Injury in Wilson Disease Based on Pathogenesis of Latent Toxin in Kidney Collaterals
Ke DIAO ; Wenming YANG ; Xiang LI ; Yue YANG ; Yulong YANG ; Zhihong RAO ; Shuzhen FANG ; Yufeng DING
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(15):132-139
Hepatolenticular degeneration, also known as Wilson disease (WD), is a hereditary disease caused by mutations in the ATP7B gene, leading to copper metabolism disorders. Gene mutations result in impaired synthesis of copper-binding protein, and abnormal excretion of copper through bile leads to pathological deposition of copper in various organs, ultimately causing multi-organ damage. The insidious onset and low specificity of symptoms make it difficult to diagnose this disease. On the basis of existing studies and the theory of latent toxin, this paper proposes that latent toxin in kidney collaterals is the main pathogenesis of renal injury in WD. It is pointed out that health Qi deficiency and latent pathogen are the premises for the occurrence of this disease, and the transformation of latent pathogen into toxin is the ley pathological process. Toxin damaging kidney collaterals is the ultimate result. According to the pathogenesis, this paper proposes the treatment principle of reinforcing healthy Qi and resolving toxin and treatment based on syndrome differentiation. This review provides new ideas for the diagnosis and treatment of renal injury in WD with traditional Chinese medicine.
9.Clinical Efficacy of Gandouling Decoction Combined with Neuromuscular Electrical Stimulation on Dysphagia in Wilson Disease with Combined Phlegm and Stasis
Zhihong RAO ; Wenming YANG ; Yue YANG ; Xiang LI ; Peng HUANG ; Yulong YANG ; Ke DIAO ; Shuzhen FANG
Chinese Journal of Experimental Traditional Medical Formulae 2025;31(15):155-162
ObjectiveTo observe the clinical efficacy of Gandouling decoction combined with neuromuscular electrical stimulation (NMES) in the treatment of dysphagia in Wilson disease (WD) with combined phlegm and stasis. MethodsA total of 80 WD patients with dysphagia due to combined phlegm and stasis treated in the Department of Encephalopathy, the First Affiliated Hospital of Anhui University of Chinese Medicine were randomized into a control group and an observation group, with 40 patients in each group. In addition, 40 healthy volunteers were recruited as the normal group. The control group was treated with basic copper drainage combined with NMES. The observation group was treated with Gandouling Decoction on the basis of the therapy in the control group. Each course of treatment lasted for 8 days, and the patients were treated for a total of 4 courses. All subjects underwent video fluoroscopic swallowing study (VFSS) before and after treatment. During the examination, contrast agents with 4 different characters were used for the swallowing action, and the passing time was recorded. The TCM syndrome score, water swallow test score, standard swallowing assessment (SSA) score, and 24-h urinary copper level before and after treatment were analyzed. ResultsWhen performing VFSS, the passing time of contrast agents of different characters in the oral stage was longer in the WD group than in the normal group (P<0.01), while it had no significant difference in the pharyngeal stage. After treatment, the passing time in the oral stage shortened in the control and observation groups (P<0.01), and the observation group outperformed the control group (P<0.01). After treatment, both the control and observation groups showed declines in TCM syndrome score and SSA score (P<0.01) and an increase in water swallow test score (P<0.01), and the changes were more obvious in the observation group than in the control group (P<0.01). In addition, the treatment in the control and observation groups elevated the 24-h urinary copper level (P<0.01), and the elevation in the observation group was more obvious than that in the control group (P<0.01). Neither group showed obvious adverse reaction. ConclusionGandouling decoction combined with NMES can significantly ameliorate dysphagia in WD patients with the syndrome of combined phlegm and stasis regarding the TCM syndrome score, water swallow test score, and SSA score, demonstrating definite clinical efficacy and high safety.
10.Increasing trends of hyperglycemia and diabetes in treatment-naive people living with HIV in Shenzhen from 2013 to 2019: An emerging health concern.
Liqin SUN ; Haipeng ZHU ; Man RAO ; Fang ZHAO ; Yang ZHOU ; Lukun ZHANG ; Xia SHI ; Jianwei WU ; Yun HE ; Hongzhou LU ; Jiaye LIU
Chinese Medical Journal 2025;138(16):2043-2045

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