1.Analysis of missed detection in gonococci culture of male urethral secretions
Junwei NIE ; Guangzhen LIU ; Zhiyuan LIN
International Journal of Laboratory Medicine 2009;30(8):762-763
Objective:
To investigate the undertected situation in gonococci culture of male urethral secretions.
Methods:
The 362 cases of male ureethral secreations were simultaneously detected with fluorescence quantitative PCR, germiculture and direct smear method. The results in three detections were statistically analyzed.
Results:
The fluorescence quantitative PCR positive rate was 29.56%, near to direct smear method (26.52%)(x2=0.83,P>0.05); the germiculture positive rate(4.42%) was significantly lower than the positive rates of fluorescence quantitative PCR(x2=81.10,P<0.01) and direct smear method(x2=67.60,P<0.01).
Conclusion
The simple gonococci culture has high missed detection rate(>80%) in detecting male cases. Ensuring the quality of samples before analysis and detecting with two methods or above are the effective measures to improve the gonococci detection rate.
2.Analysis of Factors Relevant to the Onset of Eczema in 479 Infants in Taiyuan
Yuhua HE ; Jing KANG ; Guangzhen LIU
Chinese Journal of Information on Traditional Chinese Medicine 2006;0(08):-
0.05). 73.96% of eczema were taken place at the age of 1~6 months, 13.02% were at the age of 6 months to 2 years, and 13.61% were at the age of 2~3 years. The incidence of eczema is also relevant to feeding patterns, which is 62.23%, 23.08% and 14.79% respectively by breast-feeding, mixed feeding and artificial feeding. Some other factors that relevant to the onset of eczema also have been found in the study, such as constitution, weather, genetic background, and so on. Conclusion Feeding pattern, genetic background and some other factors were relevant to the onset of eczema.
3.Computer software for prevention and treatment of diabetes mellitus
Guangzhen ZHANG ; Yu LIU ; Liqun REN
Chinese Journal of Tissue Engineering Research 2007;0(13):-
At present, the computer administration and network system for diabetes still need exploration in China. A management software for the prevention and treatment of diabetes has been developed, taking the advanced MS SQL SERVER system as background database, while PowerBuilder 9.0 as foreground development tool. Both personal version and net version are configurable at random. This software includes six parts, namely the general data of patients, conventional physical examination of patients, treatment proposal, knowledge management, data query and statistical analysis, and system maintenance, in which they contact and conjugate with each other for the convenience of the whole processing. Good effects are obtained in the practical application of this software, and a regional network of the preventive and therapeutic information for diabetes is set up combining with other medical units, which can share the individual information, improve the ability of cooperative and follow-up study of diabetes, promote the data transferring and diagnosing quality of primary medical services, and is beneficial for both patients and physicians.
4.Effect of propylthiouracil and methimazole on serum cytokines in patients with Graves' disease
Hongquan DU ; Yu LIU ; Aihua JIA ; Guangzhen ZHANG
Chinese Journal of Endocrinology and Metabolism 2012;28(9):737-740
Sixty-four patients with Graves' diseases were divided into methimazole group ( n =30 ) and propylthiouracil group( n =34 ).20 healthy volunteers were used as the control group.The levels of interleukin (IL) -2,IL-6,and TSH receptor antibody (TRAb) were determined by ELISA after serum samples were eollected before treatment and after treatment for 3 and 6 months.The results showed that the general data of two groups were not significantly different before treatment.IL-2 and IL-6 levels at 6 months after treatment were significantly different from the baseline (P< 0.05 ),IL-2 being gradually increased while IL-6 decreased with time.The level of IL-6 in methimazole group was lower than that in propylthiouracil group after treatment for 6 months ( P< 0.05 ).There was no significant difference in TRAb levels between two groups before treatment while differences became significant at 3 and 6 months of treatment ( all P< 0.01 ),being gradually decreased with time. IL-2/IL-6 ratio became significantly greater at 3 and 6 months of treatment compared with that before treatment in the same treatment group( P<0.05 ) and the ratio in methimazole group was higher than that in propylthiouracil group by 6 months of treatment ( P<0.05 ).IL-6level was positively correlated with FT3 and FT4 levels,and IL-2 level was negatively correlated with FT3,FT4,and TRAb levels in GD patients before treatment.The correlations of IL-2 and IL-6 with FT3 and FT4 disappeared by 3 and 6 months of treatment.IL-2 and IL-6 levels were related with TRAb level before and after treatment in methimazole group. These results suggest that the immunosuppressive effect of methimazole is more evident than that of propylthiouracil in patients with Graves' disease.
5.Study on GC Fingerprint of Lingyang Ganmao Tablets
Lin LIN ; Dongxiao GUO ; Bing WANG ; Guangzhen LIU
China Pharmacy 2017;28(24):3397-3399
OBJECTIVE:To establish the GC fingerpriont for Lingyang ganmao tablets.METHODS:The determination was performed on DB-5 ms capillary column.Flame ionization detector was adopted with temperature of 250 ℃ (temperature programming).The temperature of injector was 240 ℃.Carrier gas was nitrogen with flow rate of 1.0 mL/min;the sample size was 1 μL by split sampling with split ratio of 20 ∶ 1.Using peppermint ketone as reference,Similarity Evaluation Software for Chromatographic Fingerprint of Traditional Chinese Medicine (2012 edition) was used for the similarity analysis of 10 batches of Lingyang ganmao tablets.RESULTS:There were 14 common peaks in the batches of Lingyang ganmao tablets,similarity degrees were higher than 0.98.It was proved that the GC profiles and control fingerprint of 10 batches of samples had good consistency.CONCLUSIONS:The established fingerprint can provide reference for the identification and quality evaluation of Lingyang ganmao tablets.
6.Determination and Evaluation of Antimicrobial Effectiveness of 10% Chloral Hydrate Solution
Guangzhen LIU ; Guojin WANG ; Xiangang LI ; Gang CHEN ; Lin LIN
China Pharmacist 2017;20(2):372-374
Objective:To determine and evaluate the antimicrobial effectiveness of 10% chloral hydrate solution. Methods:The determination of antimicrobial effectiveness of 10% chloral hydrate solution from two different manufacturers was carried out according to Chinese Pharmacopoeia (2015 edition). Results:The antimicrobial effectiveness of 10% chloral hydrate solution met the require-ments of Chinese Pharmacopoeia (2015 edition). Conclusion:10% Chloral hydrate solution shows adequate antimicrobial effective-ness.
7.Effect of Ibudilast on the quality of life of patients with steroid resistant allergic rhinitis:a randomized,double blind,controlled study
Hong LUO ; Xiaoling LIU ; Zezhang TAO ; Nengbing YAN ; Guangzhen PAN ; Yan JIANG ; Ye YU ; Jiangping LI
Chinese Archives of Otolaryngology-Head and Neck Surgery 2006;0(11):-
OBJECTIVE To assess the effect of Ibudilast on the quality of life (QOL) of patients with steroid resistant allergic rhinitis.METHODS A randomized,double-blind,placebo-controlled study was carried out with Ibudilast in 66 patients with the steroid resistant allergic rhinitis.QOL was measured with Short-Form Health Survey (SF-36) questionnaire (Chinese version).Ibudilast (10rag twice daily,34 patients),placebo (32 patients) was given for 3 weeks. The SF-36 questionnaire was administered at the start of treatment and after 3 weeks of treatment.Sings and Symptom-medication scores were measured daily during the study.RESULTS There were no significant differences between the Ibudilast and placebo group in terms of sings and symptoms or QOL scores before study.After 3 weeks of treatment,symptoms scores were significantly decreased and QOL scores significantly improved in the Ibudilast group compared with those in placebo group (both P
8.Clinicopathological features of intravascular large B-cell lymphoma and collision tumors of five cases
Jia LIU ; Guangzhen LIU ; Lei XIA ; Hongyan WANG ; Xiaofang ZHANG ; Hui LIU
Chinese Journal of Pathology 2024;53(1):22-28
Objective:To investigate the clinicopathological characteristics, diagnosis and differential diagnosis of intravascular large B-cell lymphoma (IVLBCL) and its collision tumors.Methods:Five cases of IVLBCL were collected, including 2 cases of collision tumors, and 1 case complicated with liver cirrhosis. The morphology and immunophenotype were analyzed. The related literature was reviewed.Results:There were 2 females and 3 males, aged from 53 to 73 years, with a median age of 65 years. The tumors were located in the lower extremities, right cerebellar hemisphere, left kidney, bilateral nasal cavity, and liver, respectively. Cases 2 and 3 were incidentally found in meningioma and renal cell carcinoma tissues, respectively. Case 5 had a background of liver cirrhosis. Morphologically, atypical large lymphoid cells were located in small blood vessels and capillary lumen, with little cytoplasm, hyperchromasia, prominent nucleoli, and obvious mitotic figures. Immunohistochemically, the IVLBCL tumor cells expressed CD20 and PAX5; 2 cases were CD5 positive. One of the 5 cases was GCB phenotype, and 4 cases were non-GCB phenotype. All cases expressed C-MYC (positive rate was 10%-40%). PD-L1 was positive in 4 cases (positive rate was 60%-90%). Ki-67 proliferation index was 70%-90%. CKpan, CD3, TDT, and CD34 were negative. In case 2, meningioma cells were positive for PR, EMA, and vimentin, but negative for CKpan and PD-L1. In case 3, renal carcinoma cells were positive for CKpan, PAX8, EMA, vimentin, CAⅨ and CD10, while PD-L1 was negative. No EBER expression (by in situ hybridization) or C-MYC gene translocation (FISH, break-apart probe) was detected in any of the 5 cases. Three patients were followed up, and all died within 1-13 months.Conclusions:IVLBCL is a highly aggressive lymphoma, with occult clinical manifestations and poor prognosis. Collision tumors of IVLBCL are extremely rare. A better understanding of IVLBCL would help pathologists avoid misdiagnoses.
9.ALK-positive large B-cell lymphoma with EBV infection or cyclin D1 expression: a clinicopathological analysis of 3 cases
Wanna WU ; Chenxi XIANG ; Dongshen MA ; Guangzhen LIU ; Hui LIU
Chinese Journal of Pathology 2022;51(6):506-511
Objective:To investigate the clinicopathological features and misdiagnosis factors of ALK positive large B-cell lymphoma (ALK +LBCL). Methods:The clinicopathological data of 3 patients with ALK +LBCL in the Department of Pathology, the Affiliated Hospital of Xuzhou Medical University from 2010 to 2021 were collected retrospectively. Immunohistochemistry (IHC) was used for immunophenotyping, in-situ hybridization (ISH) for EBV-encoded RNA (EBER) detection, in-situ fluorescence hybridization (FISH, break-apart probes) for ALK, MYC, and CCND1 translocations. Next-generation sequencing (NGS) was used for the detection of gene fusions and mutations. And clinicopathological features and prognosis of patients were analyzed. Results:Among the 3 ALK +LBCL patients, there were 2 males and 1 female, aged 42, 59, and 39 years, respectively, none of which presented with B symptoms. Case 1 showed systemic lymphadenopathy with elevated serum EBV DNA loading, while cases 2 and 3 presented with extranodal lesions in the nasal and hard palate, respectively. Bone marrow biopsies were performed in cases 1 and 3, and neither showed involvement. Case 1 was at clinical stage Ⅲ while both cases 2 and 3 were at stage Ⅰ, and IPI score ranged 0-1 in all cases. The morphology of these cases was similar. The architecture was effaced by sheets of cohesive large cells growing in extensive infiltration and intra-sinus growth pattern. The neoplastic cells showed immunoblastic or plasmablastic morphology, and large anaplastic cells were easily found. The tumor cells expressed ALK protein cytoplasmically in almost all cells, with ALK gene translocations detected by FISH. Common B-cell and T-cell markers, including CD20, PAX5, CD19, CD2, CD3, CD5, CD7, CD43, CD56, and bcl-2, were negative, while plasmacytic differentiation markers, including CD138, CD38, and MUM1, were positive; CD22, BOB1 and OCT2 were variably expressed. CD10 was strongly expressed only in case 3. All cases were negative for bcl-6 but positive for CD4, perforin, CD30 (partial cells), pSTAT3 (diffusely), and MYC (40%-50%). The Ki-67 index was ranged 60%-70%. MYC translocation was not detected in any case by FISH. In case 1, EBER was strongly positive in>90% of tumor cells. Case 3 was diffusely positive for cyclin D1 but negative for SOX11 expression and CCND1 translocation. All cases harbored ALK fusion genes detected by NGS. In case 1, the fusion partner was TFG, which had not been reported in DLBCL, while in the other 2 cases, ALK fused with the CTCL gene, which was commonly seen in ALK +LBCL. Cases 1 and 3 were treated with ECHOP-based chemotherapy for six cycles and were followed up for 70 and 27 months, respectively, and both achieved complete remission. Conclusions:ALK +LBCL cases with diffuse EBER-positivity reported in this study show TGF as a new fusion partner of ALK in DLBCL, together with cyclin D1 expression. These rare cases are easily confused with EBV positive diffuse large B-cell lymphoma, not otherwise specified (EBV +DLBCL, NOS), cyclin D1 positive diffuse large B-cell lymphoma (cyclin D1 +DLBCL) and ALK positive anaplastic large cell lymphoma (ALK +ALCL), resulting in misdiagnosis. Being aware of these rare phenotypes is essential for pathologists to diagnose ALK+LBCL and guide appropriate treatment accurately.
10.Clinicopathological features of mixed cervical carcinoma with adenoid cystic pattern
Linlin LI ; Yingying CUI ; Pengying GAO ; Lei XIA ; Guangzhen LIU ; Hui LIU
Chinese Journal of Pathology 2022;51(7):615-620
Objective:To investigate the clinicopathological characteristics, immunophenotype, molecular characteristics, differential diagnosis, clinical treatment and prognosis of mixed carcinoma of cervix with adenoid cystic pattern.Methods:Three cases of mixed cervical carcinoma with adenoid cystic pattern were collected at the Affiliated Hospital of Xuzhou University Medical School from 2018 to 2021.The clinicopathological characteristics were analyzed, immunohistochemistry (IHC) and in situ hybridization (ISH) were performed. The related literature was reviewed.Results:The three patients were postmenopausal women with a median age of 74.7 years. The clinical symptom was vaginal bleeding without obvious causes. One case was an endophytic tumor, and the others were exophytic. The median diameter of the three cases was 3.3 cm. Two patients underwent hysterectomy, the tumors infiltrated the external 1/3 and middle 1/3 of the cervix respectively. All the lymph nodes were negative. One patient had a previous biopsy. Microscopically, all three tumors were characterized by a cribriform structure, which were filled with basophilic myxoid substance and surrounded by tubules lined by two layers of cells. The tumor cells had scanty cytoplasm and showed the characteristics of cervical basal-like cells. All three cases were accompanied by high-grade squamous intraepithelial lesions and squamous cell carcinoma, and one also showed a non-specific spindle cell sarcomatoid component. Within the double-layered epithelial structure, the outer epithelium was positive for p63, CD117, p16 INK4a (clone E6H4) and MYB protein and negative for S-100 by IHC. The combined positive score of PD-L1 (clone 22C3) was less than 1 in all three cases. Human papillomavirus (HPV) types 16 and 18 were detected in one patient preoperatively, while high-risk HPV were positive in the other two patients by RNAscope ISH postoperatively. None of the three cases showed MYB gene rearrangement by FISH. The mean follow-up time was 23.3 months (36, 28 and 6 months, respectively). Two patients underwent hysterectomy and radiotherapy survived without disease. One patient survived with tumor just by radiotherapy and drug therapy. Conclusions:Mixed cervical carcinoma with adenoid cystic pattern is extremely rare. It is a high-grade malignancy with poor prognosis. The tumor is associated with high-risk HPV infection, without MYB gene rearrangement, and with low PD-L1 immunoreactivity. Radical surgery combined with radiotherapy and chemotherapy is the mainstay of treatment at present.