1.Retrospective epidemiological analysis of fungal infection of a hospital from 2018 to 2024
Zhihao LIU ; Yali LIU ; Lina GUO ; Yao WANG ; Ying ZHAO ; Xiuli XIE ; Wenjing LIU ; Renyuan ZHU ; Hongli SUN ; Hongtao DOU ; Dingding LI ; Lingli LIU ; Shuying YU ; Menglan ZHOU ; Qiwen YANG ; Yingchun XU ; Li ZHANG
International Journal of Laboratory Medicine 2025;46(21):2588-2594
Objective To analyze the main epidemiological characteristics of fungal infection in this hospital in the past 7 years,and to provide reference for clinical treatment and prevention and control strategies of fun-gal infection.Methods The fungal data and clinical data of related patients isolated from clinical samples in Peking Union Medical College Hospital from early January 2018 to the end of May 2024 were selected,and the main epidemiological characteristics of fungal infection in this hospital were identified and described through multi-angle statistical analysis.Results A total of 4 479 patients with filamentous fungal infection were en-rolled.The proportion of male patients[57.5%(2 576/4 479)]was higher than that of female patients[42.5%(1 903/4 143)],mainly distributed in internal medicine,Intensive Care Unit(ICU)and emergency de-partment,among which internal medicine accounted for the highest proportion[50.0%(2 241/4 479)].About 90.0%of the specimens were from the lower respiratory tract,in addition to specimens from skin and soft tis-sue,tissue,ear and blood culture.In terms of seasonal distribution,there are more patients in winter.The fun-gi were mainly composed of Aspergillus,Mucor,Cerdosporium,Fusarium and Penicillium,among which As-pergillus was the most abundant,accounting for 74.6%of the total.Aspergillus fumigatus was the most a-bundant Aspergillus,accounting for 42.5%of the total Aspergillus(1 418/3 340).Among the related infec-tions caused by mold,Aspergillus was the most common in the lower respiratory tract,accounting for 76.8%.Among them,Aspergillus fumigatus accounted for the highest proportion(33.6%).98.6%of the molds infected the ear were Aspergillus,of which Aspergillus niger and Aspergillus terreus were the most common.Skin infections are mainly caused by Sporothrix schenckii,Trichophyton rubrum,Microsporum ca-nis.The results of in vitro drug sensitivity test showed that the four common Aspergillus isolated in this hos-pital were sensitive to voriconazole,and amphotericin B had better antifungal activity against Mucorales in vitro.Conclusion Based on the main epidemiological characteristics of fungal infections in this hospital,it is recommended that special attention be paid to the admission of patients in the respiratory department during the peak infection period in autumn and winter.In the treatment of fungal infections in different regions and on different body parts,attention should be paid to the differences in the distribution of bacterial species.
2.Genetic diagnosis for a pedigree affected with hereditary nephrogenic diabetes insipidus.
Zhijin LU ; Xia WU ; Renyuan ZHOU ; Kai KAI ; Jie WEN ; Qian XIONG
Chinese Journal of Medical Genetics 2019;36(2):140-142
OBJECTIVE:
To explore the genetic basis for pedigree affected with hereditary nephrogenic diabetes insipidus (HNDI).
METHODS:
Next generation sequencing (NGS) with an osteology system gene panel was carried out for the proband. Suspected mutation was validated by Sanger sequencing of two relatives with similar symptoms and two unaffected relatives from the pedigree.
RESULTS:
The proband was found to carry a c.856C>T mutation of the AVPR2 gene. The same mutation was detected in the two relatives with similar symptoms and one unaffected healthy relative.
CONCLUSION
The HNDI in this pedigree may be attributed to the c.856C>T mutation of the AVPR2 gene.
Diabetes Insipidus, Nephrogenic
;
High-Throughput Nucleotide Sequencing
;
Humans
;
Mutation
;
Pedigree
;
Receptors, Vasopressin
3.Study of the value of PSADT in the follow-up of patients with prostate cancer after MAB therapy
Wei WANG ; Guowei SHI ; Jiayang HE ; Renyuan ZHOU ; Wenzhang WANG ; Qiang DING
Chinese Journal of Urology 2013;(4):301-304
Objective To study the value of PSADT in predicting the prognosis and the possibility of disease progression for patients with prostate cancer after MAB therapy.Methods Based on the retrospective review of the history and the follow-up of 159 prostate cancer patients,who received MAB therapy in our department from January 1994 to December 2010,PSADT values were calculated and survival analysis was performed.The ages at diagnosis ranged from 54 to 90 years with a median of 74 years.The pretreatment PSA value ranged from 2.6 to 275.0 μg/L with a median of 46.8 μg/L.The patients of Gleason score ≤6,7 and ≥8 constituted 27.7%,42.1% and 25.2%,respectively.Only 26.4% of the patients were staged as T1N0M0-T2N0M0 and the others had locally advanced disease or metastasis.A multivariate analysis with a Cox's proportional hazard model was used and the disease progression rates in different PSADT groups were also compared.Chi-square test and Log-rank test were applied in statistic analysis.Results The 159 patients received follow-up with a median period of 28 months (6-126 m).The median PSADT of these 159 patients was 5.7 months (0.5-21.0 m).The 3-year and 5-year survival for the 71 patients,whose PSADT were not less than 6 months,were 89.4% and 47.6% respectively,compared with 49.8% and 30.6% for the other 88 patients whose PSADT were less than 6 months.The survivals were significantly different between the two groups (P < 0.01).It was confirmed by a further multivariate analysis with a Cox' s proportional hazard model that PSADT was one of the predictive factors of the prognosis of these prostate cancer patients with a hazard ratio of 2.6 (P < 0.01).Moreover,disease progression were found in 19.7% of the PSADT≥6 m group during the follow-up compared with 63.6% in the PSADT <6 m group.The disease progression rates were also significantly different (P < 0.0 l).Conclusions PSADT can be used to predict the prognosis of patients with prostate cancer after the MAB therapy.The survival for the patients,whose PSADT are not less than 6 months,is higher than those whose PSADT less than 6 months.Meanwhile,PSADT can predict the possibility of disease progression after MAB treatment.
4.Treating allergic conjunctivitis combined with frequently winking in children using olopatadine
Hao ZHOU ; Xingtao ZHOU ; Xiaomei QU ; Hong LIU ; Lan JUN ; Renyuan CHU
Ophthalmology in China 2009;18(4):272-274
Objective To observe curative effect of olopatadine in treatment of allergic conjunctivitis combined with frequently winking in children. Design Prospective case series. Participants Ninety seven children with frequently winking aged 3-12 years in Shanghai Eye and ENT Hospital. Methods According to the factor in causation of frequently winking (FW), 97 children were divided into allergic conjunctivitis (AC) group, trichiasis combined AC group, AC with tics group, trichiasis group, tics group and unknown cau-sation group after clinical examination. The first 3 groups with AC were treated with olopatadine 0.1% ophthalmic solution b.I.d.(n=35) and emedastine 0.05% ophthalmic solution was used q.I.d, in AC group as control(n=32). The patients were followed after 3 weeks and the extent of symptoms of FW was recorded. Main Outcome Measures Extent of the symptoms of FW. Result The effective rate of olopatadine in treating FW caused by AC or AC combined with other diseases was 80.43%. The effective rate in FW children caused mainly by AC was 82.86% which was higher than that of control drug emedastine (75.0%) (P=0.02). Seven cure cases were all in olopatadine treating group. Conclusion AC is the most common and main causative factor in FW children. Early use of olopatadine ophthalmic drop can effectively alleviate FW symptoms. (Ophthalmol CHN, 2009, 18: 272-274)
5.Effects of rush-mat dust on the health of exposed workers.
Guobing XIAO ; Renyuan WANG ; Lairong XU ; Zaohua MA ; Xing ZHANG ; Chenglai ZHOU ; Takumi KISHIMOTO ; Kenji MORINAGA ; Norihiko KOHYAMA
Chinese Journal of Industrial Hygiene and Occupational Diseases 2002;20(2):90-92
OBJECTIVETo evaluate the effect of exposure to rush-mat dust on the health of workers.
METHODSA cross sectional study of 661 workers (349 men, 312 women) from 35 rush-mat plants was carried out by using occupational health investigation, questionnare and physical examination.
RESULTSThe geometric mean total dust concentration in the workshop was up to 20.00 mg/m3, and the geometric mean respirable dust concentration reached 8.22 mg/m3. The mean free SiO2 concentration of accumulated dust was 25.6%. The prevalence of radiographic small opacities profusion category > or = 1/0, according to the China Classification for pneumoconiosis (GB 5906-2000), and compared with the ILO 1980 system, was 2.57%. Even more, one man had category 2 pneumoconiosis with progressive massive fibrosis. However, the incidence of pneumoconiosis (1/0 at least) was correlated with work duration and dust concentration(r = 1.156, P < 0.001; r = 0.106, P = 0.006, respectively). Some positive correlations were found between the incidence of cough or expectoration and occupational exposure (r = 0.085, P = 0.028; r = 0.094, P = 0.016, respectively).
CONCLUSIONTo our knowledge, this is the first report of rush pneumoconiosis in China. The results have offered the possibility of a dose-response relationship between rush-mat dust and pneumoconiosis. More investigation in this area is need.
Aluminum Silicates ; Chemical Industry ; Cross-Sectional Studies ; Dust ; Female ; Humans ; Male ; Occupational Exposure ; adverse effects ; Pneumoconiosis ; etiology
6.Retinal dopamine transporter in experimental myopia.
Xiaoqing XI ; Renyuan CHU ; Xingtao ZHOU ; Yi LU ; Xingdang LIU
Chinese Medical Journal 2002;115(7):1027-1030
OBJECTIVETo investigate the distribution, changes and a possible role for retinal dopamine transporter (DAT) in experimental myopia in chickens.
METHODSTwo-day-old chickens were divided into four groups. Chicken eyes were fitted with lenses of -10D,-20D and translucent goggles unilaterally. Normal eyes were used as controls. After 3 wk, all chickens were given an intramuscular injection of (125)I-beta-CIT 2beta-carbomethoxy-3beta-(4-iodophenyl)tropane and sacrificed two hours post injection. Retinal pigment epithelium (RPE) and the neural retina were obtained together or RPE was dissected out from the neural retina. Radioactive DAT from each specimen was assayed by gamma-counter.
RESULTSRetinal DAT was detected in RPE specimens rather than in the neural retina in all eyes. Radioactive DAT in myopic eyes was higher, compared with control eyes.
CONCLUSIONSRetinal DAT is mainly located in the RPE and may be involved in the formation of lens induced myopia (LIM) and form deprivation myopia (FDM). These methods may provide a new approach for further studying the role of the dopamine system in experimental myopia.
Animals ; Chickens ; Dopamine Plasma Membrane Transport Proteins ; Eye ; growth & development ; Membrane Glycoproteins ; Membrane Transport Proteins ; analysis ; physiology ; Myopia ; metabolism ; Nerve Tissue Proteins ; Retina ; chemistry
7.Use of modified suction ring in LASIK
Jinhui DAI ; Renyuan CHU ; Liangcheng WU ; Xingtao ZHOU
Recent Advances in Ophthalmology 2001;21(3):199-200
Objective To evaluate the effect of modified suction ring in laser in situ keratomileusis(LASIK) for special eyeballs.Methods Those eyeballs that couldn't be sucked successfully with regular suction ring were performed with modified suction ring, and the characteristic of those eyes was analyzed.Results Fifteen eyes of 9 cases were included in this study and were sucked successfully with modified suction ring with intact corneal flap.Eight eyes of 5 cases had small corneal power especially in the peripheral section. The corneal power in the peripheral section of 7 eyes was less than 41D. Corneal diameter of 1 eye was 9.5mm and 6 eyes of 3 cases had small palpebral fissure.Conclusions The modified suction ring is safe and effective for those eyes with flat cornea, small corneal diameter and small palpebral fissure.
8.Ultrastructure changes of lens zonule in experimental myopia induced by eye lid suture
Hao ZHOU ; Renyuan CHU ; Xingtao ZHOU ; Jinhui DAI ; Donghong CHEN
Academic Journal of Second Military Medical University 1999;0(12):-
Objective:To observe the lens zonule infrastructure changes in experimental myopia. Methods; The eye lids were sutured to induce the myopia in guinea pigs and the zonule ultrastructure changes were observed. Results: There were significant differences in the eye axial length and diopter between lid-sutured eyes and controls(P

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