1.Mechanism of action and therapeutic potential of the Hippo signaling pathway in ocular disease
International Eye Science 2024;24(11):1764-1768
Hippo signaling pathway plays an important role in cell growth, proliferation, apoptosis, and stem cell regeneration. Dysregulation of this pathway has been linked to various diseases, such as cancer, heart disease, lung disease, kidney disease, liver disease, and immune dysfunction, as well as ocular diseases. Consequently, regulating the balance of Hippo signaling pathway may be an effective treatment for ocular diseases. This article reviews the mechanism of action and therapeutic potential of Hippo signaling pathway in ocular diseases, and discusses the potential therapeutic targets of the Hippo signaling pathway, to identify new targets and provide new research ideas for treating ocular diseases.
2.Correlation between the nucleic acid load of Bordetella pertussis and clinical features and severity of illness in infants and young children with wooping cough
Yongchao DENG ; Caixia DONG ; Shuo CHEN ; Liya MO ; Caizhi HUANG
Chinese Journal of Preventive Medicine 2024;58(10):1580-1586
To study the correlation between the level of Bordetella pertussis nucleic acid and clinical features of the disease in infants and young children and to investigate the risk factors for the development of severe pertussis. Using retrospective research methods, children aged 1 month-3 years who came to Hunan Children′s Hospital from August 2023 to February 2024 and were diagnosed with pertussis for analysis. According to the logarithmic value of BP-DNA (log 10 copies/ml), 35 cases were divided into the low load group, 78 cases were divided into the medium load group and 94 cases were divided into the high load group; 54 cases were divided into the severe whooping cough group and 153 cases were divided into the general group according to the severity of the disease; the clinical characteristics and laboratory data of the groups were compared, and the risk factors for the occurrence of severe whooping cough were analyzed at the same time. The ROC was used to evaluate the predictive efficacy of BP-DNA and WBC count for the development of severe pertussis. The results showed that in the high-dose group, the WBC count(22.59×10 9/L), L/N ratio(3.31), and hospitalization days(9.0 d) were significantly higher than those in the medium-dose group and low-dose group ( F=6.309, 2.825, 15.149, all P<0.05). The hospitalization rate (100%), combined infection rate (64.96%), incidence of severe whooping cough (31.9%), pyrexia rate (29.8%), and corticosteroid use rate (57.4%) were also significantly higher than the other two groups ( χ2=25.977, 9.163, 9.371, 8.299, 20.332, all P<0.05), and the complete immunity rate (9.6%) was significantly lower than the other two groups ( χ2=11.632, P<0.05). Compared with the group of common whooping cough, the proportion of children under 1 year old (100%, χ2=9.581), the BP-DNA load (6.56 log 10 copies/ml, Z=4.004), the WBC count(31.34×10 9/L, t=7.513), the PCT level(0.07 ng/ml, Z=2.626), the IL-6 level (6.65 ng/ml, Z=4.336), the combined infection rate (88.9%, χ2=36.536), the incidence of wheezing or dyspnea (55.6%, χ2=42.972), the rate of no improvement of symptoms with macrolides prior to the visit (77.8%, χ2=26.266), and the incidence of fever (55.6%, χ2=42.972) were all significantly higher;the complete immunity rate was significantly lower (5.6%, χ2=9.581) in the severe whooping cough group, the differences were all statistically significant(all P<0.05).The result of logistic regression analysis showed severe elevation of BP-DNA, high leukocyte count, co-infection, wheezing or shortness of breath, pyrexia and no improvement of symptoms with macrolides before the treatment were the risk factors for the development of severe pertussis and the logistic regressive model predicts a sensitivity and specificity of 0.83 and 0.90 for severe whooping cough, respectively. The sensitivity of BP-DNA>1.91×10 6 copies/ml, WBC count >19.97×10 9/L and the binominal combined test to predict the occurrence of severe pertussis were 0.87, 0.61 and 0.80, and the specificity were 0.43, 0.86 and 0.73, respectively. In conclusion, nucleic acid load in infants with pertussis correlated with clinical characteristics such as the active immunity status, fever, co-infections and hospitalisation and days in hospital. Children with high nucleic acid load, high white blood cell counts, co-infections, fever and no improvement of symptoms with macrolides prior to seeing a doctor were more likely to develop the severe pertussis. When BP-DNA >1.91×10 6 copies/ml or WBC counts>19.97×10 9/L, they have the highest predictive efficacy for severe pertussis respectively, and combined detection is better.
3.Correlation between the nucleic acid load of Bordetella pertussis and clinical features and severity of illness in infants and young children with wooping cough
Yongchao DENG ; Caixia DONG ; Shuo CHEN ; Liya MO ; Caizhi HUANG
Chinese Journal of Preventive Medicine 2024;58(10):1580-1586
To study the correlation between the level of Bordetella pertussis nucleic acid and clinical features of the disease in infants and young children and to investigate the risk factors for the development of severe pertussis. Using retrospective research methods, children aged 1 month-3 years who came to Hunan Children′s Hospital from August 2023 to February 2024 and were diagnosed with pertussis for analysis. According to the logarithmic value of BP-DNA (log 10 copies/ml), 35 cases were divided into the low load group, 78 cases were divided into the medium load group and 94 cases were divided into the high load group; 54 cases were divided into the severe whooping cough group and 153 cases were divided into the general group according to the severity of the disease; the clinical characteristics and laboratory data of the groups were compared, and the risk factors for the occurrence of severe whooping cough were analyzed at the same time. The ROC was used to evaluate the predictive efficacy of BP-DNA and WBC count for the development of severe pertussis. The results showed that in the high-dose group, the WBC count(22.59×10 9/L), L/N ratio(3.31), and hospitalization days(9.0 d) were significantly higher than those in the medium-dose group and low-dose group ( F=6.309, 2.825, 15.149, all P<0.05). The hospitalization rate (100%), combined infection rate (64.96%), incidence of severe whooping cough (31.9%), pyrexia rate (29.8%), and corticosteroid use rate (57.4%) were also significantly higher than the other two groups ( χ2=25.977, 9.163, 9.371, 8.299, 20.332, all P<0.05), and the complete immunity rate (9.6%) was significantly lower than the other two groups ( χ2=11.632, P<0.05). Compared with the group of common whooping cough, the proportion of children under 1 year old (100%, χ2=9.581), the BP-DNA load (6.56 log 10 copies/ml, Z=4.004), the WBC count(31.34×10 9/L, t=7.513), the PCT level(0.07 ng/ml, Z=2.626), the IL-6 level (6.65 ng/ml, Z=4.336), the combined infection rate (88.9%, χ2=36.536), the incidence of wheezing or dyspnea (55.6%, χ2=42.972), the rate of no improvement of symptoms with macrolides prior to the visit (77.8%, χ2=26.266), and the incidence of fever (55.6%, χ2=42.972) were all significantly higher;the complete immunity rate was significantly lower (5.6%, χ2=9.581) in the severe whooping cough group, the differences were all statistically significant(all P<0.05).The result of logistic regression analysis showed severe elevation of BP-DNA, high leukocyte count, co-infection, wheezing or shortness of breath, pyrexia and no improvement of symptoms with macrolides before the treatment were the risk factors for the development of severe pertussis and the logistic regressive model predicts a sensitivity and specificity of 0.83 and 0.90 for severe whooping cough, respectively. The sensitivity of BP-DNA>1.91×10 6 copies/ml, WBC count >19.97×10 9/L and the binominal combined test to predict the occurrence of severe pertussis were 0.87, 0.61 and 0.80, and the specificity were 0.43, 0.86 and 0.73, respectively. In conclusion, nucleic acid load in infants with pertussis correlated with clinical characteristics such as the active immunity status, fever, co-infections and hospitalisation and days in hospital. Children with high nucleic acid load, high white blood cell counts, co-infections, fever and no improvement of symptoms with macrolides prior to seeing a doctor were more likely to develop the severe pertussis. When BP-DNA >1.91×10 6 copies/ml or WBC counts>19.97×10 9/L, they have the highest predictive efficacy for severe pertussis respectively, and combined detection is better.
4.A cross-lagged study of relationship between chronotype and depression symptoms among middle school students in Chongqing
Liya DENG ; Houyuan LI ; Congguang ZOU ; Dewei XU ; Liping LIAO ; Junjie YU ; Hong WANG
Chinese Mental Health Journal 2024;38(9):774-780
Objective:To explore the development and interaction between chronotype and depressive symp-toms among middle school students in Chongqing.Methods:A total of 1208 middle school students(613 in grade 7,595 in grade 10)were surveyed for three follow-ups at 6-month intervals.Periods T1-T3 represented baseline,6 months later,and 12 months later,respectively.Chronotype and depressive symptoms were measured by the Morn-ing and Evening Questionnaire-5(MEQ-5)and the Patient Health Questionnaire-9(PHQ-9).Analyses were per-formed using SPSS 26.0 and Mplus 8.3.Results:The MEQ-5 scores were lower in T1 than in T3,and the scores were lower in T2 than in T1 and T3(F=20.08,P<0.001),suggesting a fluctuating trend of chronotype shifting to the Evening-type first after baseline and then to the Morning-type.The PHQ-9 scores exhibited a significant differ-ence among the three-time measurements(x2/df=9.77/2,P<0.01).But pairwise comparisons did not yield any statistically significant findings(P>0.05).The cross-lagged panel model showed that pathways of Ti MEQ-5 scores negatively predicted Ti+1 PHQ-9 scores(βTi-Ti+1=-0.12/-0.09,P<0.05)and TiPHQ-9 scores nega-tively predicted Ti+1 MEQ-5 scores(βTi-Ti+1=-0.07/-0.11,P<0.05).Conclusion:Chronotype and depressive symptoms show some changes in adolescents.The more inclined adolescents are to the Evening-type,the higher the likelihood of depressive symptoms occurring later.The more severe the depressive symptoms,the greater the likeli-hood of a subsequent shift to the Evening-type.
5.Quality of vision related survival among primary and secondary school students with different myopia correction status
ZOU Congguang*, WEI Ke, LI Houyuan, DENG Liya, XU Dewei, WANG Hong
Chinese Journal of School Health 2023;44(8):1252-1255
Objective:
To analyse the influencing factors of myopia correction among primary and secondary school students with myopia and to compare the quality of visionrelated survival of students with different correction conditions.
Methods:
A total of 3 649 students from eight primary and secondary schools in a district of Chongqing were selected for myopia screening and vision related survival quality questionnaires using a stratified cluster random sampling method.
Results:
Univariate analysis showed that there were statistically significant differences in the rate of wearing eyeglasses among myopic students with different gender, school, educational stage, academic stress, and parenting style ( χ 2=10.98, 31.63, 31.86, 11.28, 9.59, all P <0.05). The fully vision correction rate among students wearing eyeglasses differed in educational stage, academic stress and parenting style ( χ 2= 11.77, 9.92, 8.69, all P <0.05). Multivariate Logistic regression analysis showed that gender, school and educational stage were all influencing factors of the rate of wearing eyeglasses (all P <0.01). Myopic students total scores on the Quality of Survival Scale were significantly higher than those of non myopic students ( t =20.07, P <0.01). There were significant differences in the scores of physical, emotional, visual and physical functioning and the total score of quality of survival scores among the three groups of myopic students without wearing eyeglasses, students with undercorrection and students with full vision correction ( F=49.93, 49.38, 28.14, 67.31, P <0.01).
Conclusion
Myopic students have low rates of wearing eyeglasses and fully vision correction. The rate of wearing glasses is different in urban and rural areas, gender and educational stage. The quality of life among myopic students is decreased by wearing eyeglasses, and the quality of life of undercorrected students is lower than that of fully corrected students. We should pay attention to the correction of myopia and improve the quality of life among myopic students.
6.Analysis of the clinical features and the risk factors of severe adenovirus pneumonia in children
Hao HUANG ; Yu CHEN ; Liya MA ; Miaomiao YAN ; Yu DENG ; Wendi ZHANG ; Yi YUAN ; Peng XIONG ; Feng FANG ; Tonglin LIU
Chinese Journal of Pediatrics 2021;59(1):14-19
Objective:To analyze the clinical characteristics, risk factors for critical illness and death of severe adenovirus pneumonia in children, so as to provide clinical evidences for early diagnosis and reliable treatment.Methods:A total of 75 pediatric cases with severe adenovirus pneumonia admitted to Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology from January to October 2019 were studied. The clinical features, laboratory and imaging data, therapeutic approaches, efficacy of the treatments and prognosis were investigated retrospectively. Patients were divided into severe group and critical group. Chi square test and Mann-Whitney U rank sum test were used to analyze the data of the two groups. The risk factors for critical illness and death were analyzed by univariate and multivariate Logistic regression. Results:Among the 75 children, there were 52 males and 23 females, aged from 3 months to 8 years, including 30 of severe cases and 45 of critical case. The positive rate of adenovirus antigen in nasopharyngeal swab was 21% (15/72), and the positive rate of serum adenovirus IgM antibody was only 13% (10/75). However, the positive rate of adenovirus nucleic acid in nasopharyngeal swab was 75% (21/28). What is more, the positive rates of metagenomics next generation sequencing (mNGS) in plasma and bronchoalveolar lavage fluid were 92% (33/36) and 96% (54/56), respectively, of which 95% (63/66) were confirmed as adenovirus type 7. Relatively high dose of ribavirin and integrated therapeutic approaches (respiratory support, glucocorticoids, immunoglobulin and organ supportive therapies) were used. The recovery rate was 77% (58/75), the improvement rate was 8% (6/75) and the mortality rate was 15% (11/75). The proportion of children with the duration of fever longer than 3 days after ribavirin treatment in the critical group was significantly higher than that in the severe group(51% (18/35) vs. 8% (2/26), χ 2=12.949, P<0.05). The risk factors for critical illness were younger than 4 years, longer duration of fever before and after admission to PICU, oxygenation index<300 mmHg (1 mm Hg=0.133 kPa), ferritin>1 000 μg/L, lactate dehydrogenase (LDH)>1 500 U/L, 5 lung lobes involvement, pleural effusion and (or) air leakage (all P<0.05). Among them, 5 lung lobes involvement was the independent risk factor for critical illness (adjusted OR=49.641, 95% CI 4.186-588.618, P=0.002). Risk factors for death included longer duration of fever after being admitted to PICU, oxygenation index<100 mmHg, ferritin>2 000 μg/L, interleukin (IL)-6>100 ng/L, LDH>1 500 U/L, pleural effusion and (or) air leakage (all P<0.05). Among them, IL-6>100 ng/L was the independent risk factor for the mortalities of critically ill children (adjusted OR=16.094, 95% CI2.059-25.787, P=0.008). Conclusions:The mortality rate of severe pediatric adenovirus pneumonia caused by adenovirus type 7 is high. High positive rates of adenovirus nucleic acid in nasopharyngeal swabs and mNGS in plasma or bronchoalveolar lavage fluid contribute to early diagnosis, and mNGS can also be used for serotyping. Younger children under 4 years of age, persistent fever, extensive pulmonary lesions and significantly increased inflammatory cytokines such as IL-6 are warning indicators for critical illness and poor prognosis. Relatively high dose of ribavirin combined with integrated therapeutic approaches are beneficial for prognosis.
7.Antitumor effect of recombinant mouse interleukin-33 in mice
Liya JIANG ; Ping LUO ; Shaorong DENG ; Hao YE ; Yan YU ; Wei HAN
Journal of China Pharmaceutical University 2020;51(5):584-590
To explore the effect of IL-33 on various tumor types,exogenous injection of recombinant mouse IL-33 protein (mIL-33) was used to study the efficacy of different subcutaneous tumor-bearing mouse models. In this study,mIL-33 has been found to significantly inhibit the growth of liver,lung,gastric,prostate,and colon cancers. However,the inhibition of tumor growth by mIL-33 was not completely consistent in different types of tumor. A lower dose of mIL-33 (10 μg/kg) significantly inhibited tumor growth in subcutaneous tumor-bearing mice of liver,lung,and gastric cancers,while a higher dose of mIL-33 (90 μg/kg) was required to exert the corresponding antitumor effect in subcutaneous tumor-bearing mouse models with prostate and colon cancers. In addition,the growth inhibitory effect of mIL-33 on subcutaneous tumors of colon cancer was also correlated with the duration of administration and the stage of tumor progression. The results of this study indicate that mIL-33 significantly inhibits the growth of a variety of tumors,suggesting that IL-33 might be an effective target for tumor treatment.
8.Adverse maternal and infant health effects caused by thallium exposure during pregnancy
Chunmei LIANG ; Liya MA ; Fen DENG ; Fangbiao TAO
Chinese Journal of Preventive Medicine 2020;54(3):332-336
Thallium is a highly toxic heavy metal. The adverse maternal and infant health effects caused by thallium exposure during pregnancy have also attracted more and more scholars′ attention. This study focused on the sources of thallium exposure and its influencing factors, the association between thallium exposure during pregnancy and pregnancy complications and adverse birth outcomes in newborns, the effects of thallium exposure during pregnancy on children′s growth and development after birth. In terms of potential mechanisms, the related research progress was reviewed in this study, which could provide a new basis for further research on the harm, prevention and control of thallium exposure during pregnancy.
9.Adverse maternal and infant health effects caused by thallium exposure during pregnancy
Chunmei LIANG ; Liya MA ; Fen DENG ; Fangbiao TAO
Chinese Journal of Preventive Medicine 2020;54(3):332-336
Thallium is a highly toxic heavy metal. The adverse maternal and infant health effects caused by thallium exposure during pregnancy have also attracted more and more scholars′ attention. This study focused on the sources of thallium exposure and its influencing factors, the association between thallium exposure during pregnancy and pregnancy complications and adverse birth outcomes in newborns, the effects of thallium exposure during pregnancy on children′s growth and development after birth. In terms of potential mechanisms, the related research progress was reviewed in this study, which could provide a new basis for further research on the harm, prevention and control of thallium exposure during pregnancy.
10.Study on the Metabolic Characteristics of Piperitylmagnolol in Different Species of Liver Microsomes by UPLC-MS/MS
Xing DENG ; Liya LUO ; Liping GOU ; Qianwen WEN ; Minghai TANG ; Li WAN
China Pharmacy 2019;30(2):170-175
OBJECTIVE: To establish a method for the determination of piperitylmagnolol in the incubation system of liver microsomes, and to investigate the metabolic characteristics of it in different species of liver microsomes. METHODS: The piperitylmagnolol were respectively dissolved in NADPH activated liver microsome incubation systems of human, rat, mouse, monkey and dog, and then incubated in water at 37 ℃. The reaction was terminated with methanol at 0, 2, 5, 10, 15, 20, 30, 45 and 60 minutes of incubation, respectively. Using magnolol as internal standard, UPLC-MS/MS method was used to determine the concentration of piperitylmagnolol in the incubation system. The determination was performed on Acquity UPLCTM CSH C18 column with mobile phase consisted of 0.1% formic acid-methanol (gradient elution) at the flow rate of 0.3 mL/min. The column temperature was set at 30 ℃, and the sample size was 2 μL. The ion source was electrospray ion source, and the positive ion scanning was carried out in the multiple reaction monitoring mode. The ion pairs used for quantitative analysis were m/z 401.2→331.1 (piperitylmagnolol) and m/z 265.1→247.0 (internal standard), respectively. Using the concentration of piperitylmagnolol at 0 min of incubation as a reference, the residual percentage, metabolism half-life in vitro (t1/2) and intrinsic clearance (CLint) were calculated for different incubation systems. The metabolic pathway of piperitylmagnolol was studied by chemical inhibitor method. Under the above chromatographic conditions, the metabolites in vitro were preliminarily analyzed by first-order full scanning and positive ion detection. RESULTS: The linear range of piperitylmagnolol was 3.91-500.00 ng/mL. The limit of quantitation was 3.91 ng/mL. RSDs of intra-day and inter-day were less than 10%. The accuracy ranged 87.40%-103.75%. Matrix effect didn’t affect the determination of the substance to be measured. The piperitylmagnolol was metabolized significantly in human, rat, mouse and dog liver microsomes, but not in monkey liver microsomes. After incubating for 30 min, residual percentage of piperitylmagnolol kept stable in different species of liver microsomes. The t1/2 of piperitylmagnolol were 12.07, 17.68, 17.59, 216.56 and 61.88 min in human, rat, mouse, monkey and dog liver microsomes; CLint were 0.115, 0.078, 0.079, 0.006, 0.022 mL/(min·mg), respectively. Inhibitory rates of CYP2A6, CYP2D6, CYP2C19, CYP3A4, CYP2C9, CYP2E1 and CYP1A2 to compound metabolism were 55.76%, 93.94%, 96.01%, 93.69%, 71.81%, 23.25%, 28.04%, respectively. Quasi-molecular ion peaks of the two main metabolites of piperitylmagnolol in human liver microsomes were m/z 441.2([M+Na]+) and m/z 337.2([M+H]+), respectively. CONCLUSIONS: Established UPLC-MS/MS method is simple, rapid and specific, and can be used for the determination of piperitylmagnolol concentration in the incubation system of liver microsomes and pharmacokinetic study. The metabolic characteristics of the compound are different among liver microsomes of human, rat, mouse, monkey and dog. Its metabolism process may be associated with CYP2D6, CYP2C19, CYP3A4, CYP2C9, etc.


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