1.Mechanism of action of chemotherapy drugs in promoting liver injury
Journal of Clinical Hepatology 2020;36(3):677-679
Drugs are an important cause of liver injury, and according to statistics, about 1100 drugs may induce liver injury. Due to the difficulty in differential diagnosis, drug-related liver injury is still misjudged. As different drugs have different mechanisms of action in inducing liver injury and may cause different degrees of liver injury, targeted countermeasures should be adopted. There are fewer systematic reviews of liver injury caused by chemotherapy drugs. This article mainly introduces the hepatotoxic mechanisms of various chemotherapy drugs, elaborates on the degree of hepatotoxicity caused by chemotherapy drugs, summarizes the clinical manifestations of liver injury caused by chemotherapy drugs, and gives recommendations to clinical treatment.
2.A rat model for cochlear implant research.
Wei LU ; Jin XU ; R K SHEPHERD
Journal of Clinical Otorhinolaryngology Head and Neck Surgery 2008;22(13):603-605
OBJECTIVE:
To introduce a rat model for use in cochlear implant related research.
METHOD:
Five deafened Hooded-Wistar rats were implanted with a scala tympani electrode array using a new surgical method. Electrically evoked brainstem responses (EABRs) using bipolar stimulation were recorded and cochlear history was assessed.
RESULT:
Electrically evoked brainstem responses with normal configuration confirmed the functional status of the cochlear implantation. There was no evidence of severe insertion-induced damage of intra-cochlear structure.
CONCLUSION
The surgical method established in the rat model is a safe and effective procedure for acute or chronic cochlear implantation.
Animals
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Cochlear Implantation
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methods
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Cochlear Implants
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Evoked Potentials, Auditory, Brain Stem
;
Male
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Models, Animal
;
Rats
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Rats, Wistar
3.Retrospects and prospects of transjugular intrahepatic portosystemic shunt in China
Journal of Clinical Hepatology 2016;32(2):230-233
In recent years, transjugular intrahepatic portosystemic shunt (TIPS) has been gradually applied and widely accepted in China, and the technical standards, indications, and contraindications of this technique have also been established gradually. The invention of covered stents successfully solved the issue of a high rate of shunt occlusion seen in bare stents, and thus TIPS is greatly developed. Unfortunately, since most clinical studies were published before the invention of covered stents, the clinical effect of TIPS cannot represent the current status in this field. With the development of this technique, the indications for TIPS are gradually expanded, and as a country with many patients in need of TIPS, high-quality multicenter randomized controlled clinical trials are urgently needed in China. TIPS has been accepted in the treatment of various complications of portal hypertension and hepatic vascular diseases and will enjoy a promising future.
5.Interferon beta-1b is effective and has a favourable safety profile in Chinese patients with relapsing forms of multiple sclerosis
ZX Li ; CZ Lu ; XH Zhang ; LY Cui ; XH Xu ; E Radue ; SG Chu ; LR Wang ; K Beckmann ; J Lampe ; C Pohl ; B Stemper ; R Sandbrink
Neurology Asia 2014;19(2):179-189
Background & Objective: No clinical study of any interferon beta therapy has yet been successfully conducted in Chinese multiple sclerosis patients, probably due to the low incidence of this disease in China. The primary objective of this study was to demonstrate that treating multiple sclerosis patients of Chinese origin with interferon beta-1b has a beneficial effect on disease course, as measured by the decrease of newly active lesions on magnetic resonance imaging. Methods: Chinese patients diagnosed with relapsing-remitting or secondary-progressive multiple sclerosis were enrolled in this multicenter, open label, single-arm study. Following a 3-month pre-treatment phase, patients were treated with 250 µg interferon beta-1b subcutaneously every other day for 6 months. Patients had regular assessments for treatment safety and efficacy of the treatment. Results: Thirty seven patients completed the trial. Significant decreases in the number of newly active lesions were observed in the 6-month treatment period compared with the pre-treatment period (median decrease 1.5 lesions, p<0.001). Most adverse events were mild and transient and no serious ones were observed. Conclusions: Treatment with interferon beta-1b significantly reduced the occurrence of new lesions and was well tolerated in this Chinese population. These findings support the use of interferon beta- 1b for treating Chinese MS patients.
6.Beyond the clinical walls: registered dietitian nutritionists providing medical nutrition therapy in the home setting
Kristen HICKS-ROOF ; Jing XU ; Amanda K. FULTS ; Krista Yoder LATORTUE
Nutrition Research and Practice 2021;15(6):789-797
SUBJECTS/METHODS:
This is a secondary data analysis. The mean age of the participants (n = 1,007) was 51.6 years old with a mean body mass index (BMI) of 34.1 kg/m2 . Individualized MNT visits were delivered by an RDN in the home setting from January to December 2019. Participants were referred by healthcare professionals or self-referred. Participants had MNT benefits covered by their health insurance plan (43.3% Medicaid; 39.8% private insurance; 7.9% Medicare, 9% other). Health outcomes related to nutrition care were measured. Outcomes included self-reported consumption of nutrition factors and physical activity. Our secondary outcome focused on food security. The changes in weight, BMI, physical activity, and nutrition factors were analyzed by a linear regression model or linear mixed model, adjusting for age, sex, baseline value, and number of appointments. Food security was summarized in a 2 by 2 contingency table.
RESULTS:
Baseline values had significantly negative impacts for all changes and number of appointments was significant in the changes for weight and BMI. Increases in physical activity were significant for both female and male participants, 10.4 and 12.6 minutes per day, respectively, while the changes in weight and BMI were not. Regarding dietary factors, the consumption total servings per day of vegetables (0.13) and water (3.35) significantly increased, while the consumption of total servings of whole grain (−0.27), fruit (−0.32), dairy (−0.80) and fish (−0.81) significantly decreased. About 24% (of overall population) and 45% (of Medicaid population) reported improvements in food security.
CONCLUSIONS
This study found that home visits were a useful setting for MNT delivered by RDNs. There is a strong need for individualized counseling to meet the participants' needs and personal goals.
7.Changes in clinical indicators among human immunodeficiency virus patients who failed in antiretroviral therapy during 2004-2016 in Yunnan, China: an observational cohort study
Peicheng WANG ; Junfang XU ; Bingbing GUO ; K-Jason WANG ; Liangmin GAO ; Qianyun WANG ; Jun JING ; Feng CHENG
Global Health Journal 2020;4(2):57-63
Background:This study aimed to investigate the changes in the clinical indicators and influencing factors of treatment duration among human immunodeficiency virus (HIV) patients in whom antiretroviral therapy (ART) was unsuccessful.Methods:In this retrospective study,a total of 9,418 HIV patients who failed in ART during 2004-2016 were included and divided into two treatment groups-Group 1 (treatment time ≤ 3 years,n1 =5,218) and Group 2 (treatment time > 3 years,n2 =4,200).Patient follow-up data,including age,cluster of differentiation 4 (CD4) count,and viral load,glucose,creatinine,and triglyceride levels,were extracted from electronic health record databases.Covariance analysis for repeated measures was used to analyze the biochemical indicators,and multiple logistic regression modeling was used to compare relevant data extracted from the Group 1 and Group 2 HIV patient cohorts with different treatment time.Results:The median initial CD4 count was 175.0 cells/μl (interquartile range,77.0-282.0),while the initial CD4 counts for Group 1 were lower than those for Group 2 (P < 0.05).A significant interaction between group and time effects was observed (P < 0.05) in total cholesterol (TC).Changes in hemoglobin level among HIV patients were also significantly associated with treatment time (P =0.001).The initial CD4 count (odds ratio [OR] =0.756),female sex (OR =0.713),Zerit (d4T) (OR =1.443),TC (OR =1.285),and aspartate aminotransferase level (OR =1.002) were significantly associated with the survival time of dead patients with HIV (P < 0.05).Additionally,the initial CD4 count (OR =1.456),age (OR =1.022),time interval (OR =0.903),patient's living status (OR =0.597),d4T (OR =2.256),and triglyceride (OR =0.930) and hemoglobin levels (OR =0.997) were significantly associated with the treatment time of HIV patients with drug withdrawal (P < 0.05).Conclusion:The initial biochemical parameters can affect the survival and treatment time of HIV patients.With a comprehensive understanding of the physiological and biochemical indicators of patients,we can reduce the probability of drug withdrawal and prolong the survival time of HIV patients.
8.Analysis of community colorectal cancer screening in 50-74 years old people in Guangzhou, 2015-2016.
Y LI ; H Z LIU ; Y R LIANG ; G Z LIN ; K LI ; H DONG ; H XU ; M WANG
Chinese Journal of Epidemiology 2018;39(1):81-85
Objective: To analyze the effect of colorectal cancer screening in the general population in Guangzhou, and provide evidence for the for development of colorectal cancer screening policy and strategy. Methods: The data of colorectal cancer screening in Guangzhou during 2015- 2016 were collected. The participation, the positive rate of fecal occult blood test, the detection rate of colonoscopy and screening effect of colonoscopy were evaluated. Results: A total of 220 834 residents aged 50-74 years received the screening, and the positive rate of the screening was 16.77% (37 040 cases). Colonoscopy was performed for 7 821 cases (21.12%). Colorectal lesions were found in 4 126 cases (52.76%), of which 614 (7.85%) and 73 (0.93%) and 230 (2.94%) were identified as advanced adenoma, severe dysplasia lesions and colorectal cancers, respectively. The detection rates of all colorectal lesions were higher in men than in women (all P<0.01). The diagnostic rate of early lesion was 87.24%, and 99 early cancer cases were found, accounting for 46.26% of the total cases. The overall screening detection rate of colorectal cancer was 104.15/100 000, higher than the incidence rate (81.18/100 000) in colorectal cancer surveillance (P<0.001), but age group <70 years had higher detection rate, age group ≥70 years had higher incidence rate. Conclusions: The colorectal cancer screening strategy in Guangzhou is effective in the detection of the population at high risk, increase the detection rate of colorectal lesions, early diagnosis rate of precancerous lesions and diagnosis rate of early colorectal cancer. The benefit in those aged ≤69 years was more obvious than that in those aged 70-74 years. It is necessary to improve the compliancy of colorectal cancer screening in population at high risk.
Adenoma/prevention & control*
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Aged
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China/epidemiology*
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Colonoscopy/statistics & numerical data*
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Colorectal Neoplasms/prevention & control*
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Early Detection of Cancer/methods*
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Female
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Humans
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Immunochemistry
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Male
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Mass Screening/statistics & numerical data*
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Middle Aged
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Occult Blood
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Predictive Value of Tests
9.Correlation of HBV genotypes to the therapeutic effect of PEG-interferon and the pathological changes of the liver of chronic hepatitis B patients.
Jian-kun SHEN ; Jin-lin HOU ; Xin-nan PANG ; Hong YANG ; Zheng-ju XU
Journal of Southern Medical University 2008;28(7):1217-1218
OBJECTIVETo study the correlation of HBV genotypes to the response to PEG-interferon alpha (PEG-IFN) in chronic hepatitis B (CHB) patients.
METHODSReal-time fluorescent PCR was used for HBV genotyping in 48 CHB patients, and the therapeutic effects of PEG-IFN and hepatic pathological changes were observed.
RESULTSNo obvious differences were noted in ALT and HBV DNA levels or negative rate for HBeAg between patients with genotypes B and C (P>0.05). The sustained response rate was significantly higher in genotype B than in genotype C patients 48 weeks o after the therapy.
CONCLUSIONHBV genotype is the main factor for predicting PEG-IFN therapy response in CHB patients, and the sustained response rate is significantly higher in genotype B than in genotype C patients.
Adolescent ; Adult ; Antiviral Agents ; therapeutic use ; DNA, Viral ; blood ; Female ; Genotype ; Hepatitis B e Antigens ; blood ; Hepatitis B virus ; genetics ; immunology ; Hepatitis B, Chronic ; blood ; drug therapy ; virology ; Humans ; Interferon-alpha ; therapeutic use ; Liver ; drug effects ; pathology ; virology ; Male ; Middle Aged ; Polyethylene Glycols ; therapeutic use ; Recombinant Proteins ; Young Adult
10.Loss of A-type lamin expression compromises nuclear envelope integrity in breast cancer.
Callinice D CAPO-CHICHI ; Kathy Q CAI ; Jennifer SMEDBERG ; Parvin GANJEI-AZAR ; Andrew K GODWIN ; Xiang-Xi XU
Chinese Journal of Cancer 2011;30(6):415-425
Through advances in technology, the genetic basis of cancer has been investigated at the genomic level, and many fundamental questions have begun to be addressed. Among several key unresolved questions in cancer biology, the molecular basis for the link between nuclear deformation and malignancy has not been determined. Another hallmark of human cancer is aneuploidy; however, the causes and consequences of aneuploidy are unanswered and are hotly contested topics. We found that nuclear lamina proteins lamin A/C are absent in a significant fraction (38%) of human breast cancer tissues. Even in lamin A/C-positive breast cancer, lamin A/C expression is heterogeneous or aberrant (such as non-nuclear distribution) in the population of tumor cells, as determined by immunohistology and immunofluorescence microscopy. In most breast cancer cell lines, a significant fraction of the lamin A/C-negative population was observed. To determine the consequences of the loss of lamin A/C, we suppressed their expression by shRNA in non-cancerous primary breast epithelial cells. Down-regulation of lamin A/C in breast epithelial cells led to morphological deformation, resembling that of cancer cells, as observed by immunofluorescence microscopy. The lamin A/C-suppressed breast epithelial cells developed aneuploidy as determined by both flow cytometry and fluorescence in situ hybridization. We conclude that the loss of nuclear envelope structural proteins lamin A/C in breast cancer underlies the two hallmarks of cancer aberrations in nuclear morphology and aneuploidy.
Aneuploidy
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Breast Neoplasms
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genetics
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metabolism
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pathology
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Cell Proliferation
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Down-Regulation
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Epithelial Cells
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metabolism
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Female
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Humans
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Lamin Type A
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genetics
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metabolism
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Mitosis
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Nuclear Envelope
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metabolism
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pathology
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Polyploidy
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RNA, Small Interfering
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genetics