1.Cynaroside regulates the AMPK/SIRT3/Nrf2 pathway to inhibit doxorubicin-induced cardiomyocyte pyroptosis
ZOU HAI ; ZHANG MENGYU ; YANG XUE ; SHOU HUAFENG ; CHEN ZHENGLIN ; ZHU QUANFENG ; LUO TING ; MOU XIAOZHOU ; CHEN XIAOYI
Journal of Zhejiang University. Science. B 2024;25(9):756-772
Doxorubicin(DOX)is a commonly administered chemotherapy drug for treating hematological malignancies and solid tumors;however,its clinical application is limited by significant cardiotoxicity.Cynaroside(Cyn)is a flavonoid glycoside distributed in honeysuckle,with confirmed potential biological functions in regulating inflammation,pyroptosis,and oxidative stress.Herein,the effects of Cyn were evaluated in a DOX-induced cardiotoxicity(DIC)mouse model,which was established by intraperitoneal injections of DOX(5 mg/kg)once a week for three weeks.The mice in the treatment group received dexrazoxane,MCC950,and Cyn every two days.Blood biochemistry,histopathology,immunohistochemistry,reverse transcription-quantitative polymerase chain reaction(RT-qPCR),and western blotting were conducted to investigate the cardioprotective effects and potential mechanisms of Cyn treatment.The results demonstrated the significant benefits of Cyn treatment in mitigating DIC;it could effectively alleviate oxidative stress to a certain extent,maintain the equilibrium of cell apoptosis,and enhance the cardiac function of mice.These effects were realized via regulating the transcription levels of pyroptosis-related genes,such as nucleotide-binding oligomerization domain-like receptor protein 3(NLRP3),caspase-1,and gasdermin D(GSDMD).Mechanistically,for DOX-induced myocardial injury,Cyn could significantly modulate the expression of pivotal genes,including adenosine monophosphate-activated protein kinase(AMPK),peroxisome proliferator-activated receptor γ coactivator-1α(PGC-1α),sirtuin 3(SIRT3),and nuclear factor erythroid 2-related factor 2(Nrf2).We attribute it to the mediation of AMPK/SIRT3/Nrf2 pathway,which plays a central role in preventing DOX-induced cardiomyocyte injury.In conclusion,the present study confirms the therapeutic potential of Cyn in DIC by regulating the AMPK/SIRT3/Nrf2 pathway.
2.Determination of seven elemental impurities in amlodipine besylate tablets by ICP-MS
Naijun ZHU ; Weibin JIN ; Huafeng ZHANG
Drug Standards of China 2024;25(3):257-264
Objective:To establish a method for simultaneous determination of 7 elemental impurities(V,Co,Ni,As,Cd,Hg Pb)in amlodipine besylate tablets based on inductively coupled plasma mass spectrometry(ICP-MS).Methods:After the samples were treated by microwave digestion,the solution was analyzed by ICP-MS.Ge,In,Bi were selected as the internal standards.The established method was validated.The contents of 7 elemental impurities in amlodipine besylate tablets from 54 enterprises were determined by this method.Results:The content of(V,Co,Ni,As,Cd,Hg,Pb had good linear relationship in the ranges of 1-100,1-100,1-100,1-100,1-100,0.5-4,1-100 ng·mL-1,respectively.The correlation coefficients(r)all above 0.999 4.The detec-tion limits and quantification limits were in the range of 0.000 4-0.018 4 ng·mL-1 and 0.001 4-0.061 2 ng·mL-1.The RSD of precision was less then 1.8%.The RSD of repeatability was less then 6.1%.The average re-coveries(n=9)were between 85.4%-106.5%,while their RSD was less then 4.7%.The content of 7 elemental impurities in 54 sample batches were in accordance with the limit value.Conclusion:The method is simple,rapid,accurate,reliable and highly sensitive,and can be used for the quality control of elemental impurities in amlodipine besylate tablets.
3.Analysis of prenatal phenotype and pathogenetic variant in a fetus with Papillorenal syndrome.
Xiang ZHAO ; Dan YANG ; Yumin JIA ; Yanling SHOU ; Liming WANG ; Xiangzhi WANG ; Jiena FU ; Huafeng GUO ; Jianping ZHAO ; Hao YIN ; Xueyan ZHANG ; Xiwei ZHU ; Lijuan GAO ; Chaojie MA ; Zedan XIE ; Man SHI
Chinese Journal of Medical Genetics 2020;37(9):958-961
OBJECTIVE:
To determine the carrier rate of deafness-related genetic variants among 53 873 newborns from Zhengzhou.
METHODS:
Heel blood samples of the newborns were collected with informed consent from the parents, and 15 loci of 4 genes related to congenital deafness were detected by microarray.
RESULTS:
In total 2770 newborns were found to carry deafness-related variants, with a carrier rate of 5.142%. 1325 newborns (2.459%) were found to carry heterozygous variants of the GJB2 gene, 1071 (1.988%) were found with SLC26A4 gene variants, 205 were found with GJB3 gene variants (0.381%), and 120 were found with 12S rRNA variants (0.223%). Five newborns have carried homozygous GJB2 variants, two have carried homozygous SLC26A4 variants, five have carried compound heterozygous GJB2 variants, and four have carried compound heterozygous SLC26A4 variants. 33 neonates have carried heterozygous variants of two genes at the same time.
CONCLUSION
The carrier rate of deafness-related variants in Zhengzhou, in a declining order, is for GJB2, SLC26A4, GJB3 and 12S rRNA. The common variants included GJB2 235delC and SLC26A4 IVS7-2A>G, which are similar to other regions in China. To carry out genetic screening of neonatal deafness can help to identify congenital, delayed and drug-induced deafness, and initiate treatment and follow-up as early as possible.
4.MICM classification for a case of acute myelomonocytic leukemia M
Liping HOU ; Yongping PENG ; Xiaoli SU ; Miaojuan FENG ; Ziwei CHANG ; Shan GAO ; Shuchun YU ; Zhiqiang TIAN ; Yan YU ; Xiaoli XIN ; Wenjing CUI ; Yaping ZHAO ; Guangxun GAO ; Huafeng ZHU
Chinese Journal of Clinical Laboratory Science 2019;37(6):497-471
Objective:
To describe the MICM (morphology, immunology, cytogenetics and molecular biology) characteristics of a case of acute myelomonocytic leukemia M 4C .
Methods:
The medical history data of the case of M 4C admitted to our hospital was reviewed. The results of bone marrow cell morphology, cytochemical stains, bone marrow biopsy, immunophenotype, cytogenetics, molecular test and NGS (next-generation sequencing) of the case were analyzed.
Results:
The bone marrow smear showed markedly active proliferation of bone marrow cells in which the myelomonocytic cells accounted for 85.6%. Cytochemical stains showed peroxidase (POX) stain partially and weakly positive; specific esterase AS-DCE partially positive; non-specific esterase α-NBE partially positive and smothered by sodium fluoride; non-specific esterase AS-DAE partially positive and smothered by sodium fluoride. Bone marrow biopsy showed hyperproliferative cells and diffused hyperplasia of blasts. Immunophenotype analysis showed that the abnormal cell population was positive for CD11B, CD64, CD56, cMPO, CD33, CD41, CD61, CD38 and CD58, but negative for CD13, CD34, CD117, CD7, CD123, HLA-DR, CD10, CD19, CD20, CD2, CD14, CD235, CD15, CD303, CD304, CD25, cCD79a, cCD3, cCD22, CD1a and TDT. Cytogenetic analysis showed 47, XY, t(9;11) (p22;q23),+mar. The molecular test for leukemia showed MLLT3/KMT2A gene rearrangement. NGS showed NRAS and TET2 mutation. The case was finally diagnosed as AML (acute myelomonocytic leukemia) M 4C with t(9;11)(p22;q23), MLLT3-KMT2A.
Conclusion
Leukemia M 4C may show the characteristics of both granulocytes and monocytes with complex morphological features. The combined examination of MICM should be necessary for the diagnosis of M 4C with great significance.
5.Pharmaceutical Care for Infant Patient with Rhodococcus equi Infection
Huafeng ZHANG ; Guiqing PENG ; Yuhua ZHU ; Jing XU ; Shaolin YANG ; Xulong CHEN
Herald of Medicine 2018;37(1):48-50
Objective To provide reference for drug use in infant patients with Rhodococcus equi(R.equi) infection. Methods By participating in drug therapy for an infant patient with Rhodococcus equi infection,clinical pharmacist assisted physicians to develop treatment plan and provide reasonable pharmaceutical care. Results Therapeutic selection was improved through pharmaceutical care process. Conclusion Participation of clinical pharmacist can fully play their advantages in the field of drug efficacy,and improve the level of clinical treatment.
6.Analysis of imaging features of dynamic contrast-enhanced MRI in the detection of invasive ductal carcinoma of breast cancer
Yanli ZHU ; Huafeng LUO ; Zhenqiang WANG
Chinese Journal of Primary Medicine and Pharmacy 2018;25(8):995-998
Objective To investigate the imaging features of MRI in patients with invasive ductal carcinoma of breast cancer .Methods 75 patients with breast ductal carcinoma treated by surgical treatment were selected . According to the age,75 patients were divided into young group (≤40 years) with 22 cases and elderly group ( >40 years) with 53 cases.The morphology,location,size,border and edge of the two groups were analyzed .The time signal intensity curve ( TIC) was analyzed.Results The proportion of patients with non -luminal invasive ductal carcinoma of the young group was 54.55%,which was higher than 30.19% of the elderly group,the difference was statistically significant(χ2 =3.94,P=0.047).The proportion of breast cancer infiltrating ductal carcinoma in the young group was 63.64%,which was higher than 37.74%in the elderly group,the difference was statistically signifi-cant(χ2 =4.21,P=0.040).The proportion of the infarcted ductal carcinoma in the young group was 59.09%,and that in the elderly group was 62.26%,the difference was not statistically significant(χ2=2.19,P=0.14).The proportion of breast invasive ductal carcinoma in the young group was 63.64%, which in the elderly group was 54.72%, the difference was not statistically significant (χ2 =0.13,P=0.72).Ⅰ,ⅡandⅢtype of breast ductal carcinoma TIC in the young group were 0cases,14cases,8cases,respectively,which in the elderly group were 0cases,36cases,17cases, respectively,there was no statistically significant difference in TIC grade between the two groups (χ2 =2.26,P=0.13 ) .Conclusion Breast infiltrating ductal carcinoma is mostly pulmonary lump type ,tumor border is unclear;MRI dynamic enhancement technique for the detection of breast invasive ductal carcinoma can reduce misdiagnosis .
8.Association between metabolic syndrome and prognosis of endometrioid carcinoma
Juan NI ; Hanmei LOU ; Tao ZHU ; Lingqin ZHAO ; Huafeng SHOU
Chinese Journal of Obstetrics and Gynecology 2014;49(10):768-771
Objective To study the association between metabolic syndrome (MS) and prognosis of endometrioid carcinoma.Methods A total of 256 patients with endometrioid carcinoma at,Zhejiang Cancer Hospital between January,2001 and December,2008 were chosen.The deadline for follow up was December 2008.The general conditions(including age and body mass index),whether coupled with MS and it's risk factors(including waist circumference,fasting plasma glucose,triglycerides,high-densitylipoprotein,systolic and diastolic blood pressure) were analyzed.The outcome of 256 patients whether coupled with MS were analyzed using Kaplan-Meier curve.Relative risks were estimated using Cox proportional hazards regression model.Results A total of 256 cases were followed-up successfully.Sixtyfour (33.0%) cases coupled with MS among the 194 patients survived,while thirty-two (51.6%)coupled with MS from 62 cases died,there was significant difference between them (x2=6.953,P=0.008).The total fiveyear survival rate was 75.8%,the survival time was (78.0±3.4) months.The rate and the survival time of patients coupled with MS [66.7%,(67.0±2.4) months] were significatly lower than those coupled with no MS [81.3%,(85.0±4.0) months;P<0.05].The Cox proportional hazards regression results showed that coupled with MS,body mass index ≥25 kg/m2,waist circumference>80 cm,abnormol systolic and diastolic blood pressure,abnormal fasting plasma glucose and more than two components of definitions of MS were related to bad prognosis of endometrioid carcinoma(P<0.05).Conclusion Metabolic syndrome may be lead to a bad prognosis of endometrioid carcinoma.
9.Investigation and analysis of the effect of family structure on anxiety of inpatients
Xiaohua XIE ; Yuan LIANG ; Caihong LI ; Huafeng YANG ; Aiqiong JIN ; Yan ZHU ; Weiying LAI
Chinese Journal of Practical Nursing 2013;(13):52-55
Objective To explore the symptoms of anxiety,family structure,and the distribution features of family about in-patients.And to find out the influence of the family structure on in-patients' symptoms of anxiety.The results would provide evidentiary support and suggestions for in-patients to improve quality of life and for prevention and intervention of anxiety.Methods Family table was used to register the family structure which was classified as the nuclear family,stem/expended family and other classification.The anxiety of in-patients was measured by self-rating anxiety scale.Results A total of 512 cases of in-patients completed the survey,there were 483 valid questionnaires.The rate of effective questionnaire was 94.34%.In family structure of in-patients,core family accounted for 48.65%,stem/expended family was 36.85%.The sex of family structure showed significant difference,the female proportion of the nuclear family was significantly higher than male.Among all in-patients,78.05% did not have anxiety,low-level,medium-level,and severe anxiety showed no significant differences.The effects of anxiety on family structure had significant differences.The anxiety level of stem family was relatively higher.Conclusions Economic development and the population flow due to industrialization and globalization changed family structure of our country,especially in coastal de-velopment cities with fast economic development,fast-paced and stressful work,and it may affect the influ-ence of Chinese traditional family structure on anxiety of the in-patients.
10.Association between endometrial cancer and metabolic syndrome
Huafeng SHOU ; Juan NI ; Tao ZHU ; Jianhong CHEN ; Xiang ZHANG ; Xiaoxian XU ; Lu CHEN ; Hua YU
Chinese Journal of Obstetrics and Gynecology 2010;45(2):128-131
Objective To study the association between endometrioid uterine carcinomas and metabolic syndrome (MS). Methods A retrospective study was conducted on 123 patients who were admitted in Department of Gynecology Oncology, Zhejiang Cancer Hospital (study group) and 90 healthy women (control group) with matching age from Jan. 2005 to Mar. 2009. The general conditions[including age, whether menopausal, body mass index (BMI)];the risk factors for MS [including waist circumference,fasting plasma glucose, triglycerides(TG), high-density lipoprotein (HDL) and systolic and diastolic blood pressure]were analyzed. The clinical stage, histological type, and pathology differentiated degree of study group with or without MS were also analyzed by univariate analysis and Cox proportional hazards models.Results (1) The univariate survival analysis shown that there were no significant difference with age in two groups[(54.3±0.6) vs. (54.2±0.9) years;P>0.05], while the rate of menopausal, BMI(≥25 kg/m~2), the cases coupled with MS, the size of waist circumference (> 80 cm), the level of fasting plasma glucose (≥5.6 mmol/L),TG(> 1.7 mmol/L)and abnormal systolic and diastolic blood pressure in study group were higher than those in control group (67.5% vs. 48. 9%, 45.5% vs. 23.3%, 43.9% vs.18.9%, 50.4% vs. 27.8%, 53.7% vs. 21.1%, 40.7% vs. 21.1% and 40.7% vs. 25.6%,respectively, all P <0.05). The percentage of HDL(< 1.30 mmol/L) was higher in study group than that in control granp(63. 4% vs. 32. 2%, P <0.05). (2) There were not significant difference for the clinical stage, pathological type, grades between patients with or without MS in study group (P > 0.05). (3) The Logistic multivariate survival analysis shown that central obesity, higher TG, lower HDL and abnormal plasma glucose were independent risk factors for endometrioid uterine carcinomas coupled with MS (P< 0.05). Conclusion Metabolic syndrome is marginally associated with an increased risk of endometrioid uterine carcinomas, which may be the new point to screen, prevention and treatment endometrioid uterine carcinomas.

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