1.Construction of predictive model for early allograft dysfunction after liver transplantation
Xin LI ; Xinglin YI ; Yan CHEN ; Xin DENG ; Xiangfeng LIU ; Xianzhe LIU ; Ying JIANG ; Guanlei LIU ; Chunmei CHEN ; Fang QIU ; Jianteng GU
Journal of Army Medical University 2024;46(7):746-752
Objective To analyze the factors related to early allograft dysfunction(EAD)after liver transplantation and to construct a predictive model.Methods A total of 375 patients who underwent liver transplantation in our hospital from December 2008 to December 2021 were collected,including 90 patients with EAD and 266 patients without EAD.Thirty items of baseline data for the 2 groups were compared and analyzed.Aftergrouping in a ratio of 7∶3,univariate and multivariate logistic regression analyses were used in the training set to evaluate the factors related to EAD and construct a nomogram.Receiver operating characteristic(ROC)curve,decision curve analysis(DCA),sensitivity,specificity,positive predictive value,negative predictive value,Kappa value and other indicators were used to evaluate the model performance.Results The incidence of EAD after liver transplantation was 24%.Multivariate logistic regression analysis showed that preoperative tumor recurrence history(OR=3.15,95%CI:1.28~7.77,P=0.013)and operation time(OR=1.22,95%CI:1.04~1.42,P=0.015)were related to the occurrence of EAD after surgery.After predicting the outcome according to the cut-off point of 0.519 identified by the Youden index,the model performance in the both training set and validation set was acceptable.DCA suggested the model has good clinical applicability.Conclusion The risk factors for EAD after liver transplantation are preoperative tumor recurrence history and operation time,and the established model has predictive effect on prognosis.
2.Research progress on the immune effects of photodynamic therapy
Wen-Xin CHOU ; Tian-Zhen SUN ; Ying GU ; Hong-You ZHAO
Medical Journal of Chinese People's Liberation Army 2024;49(6):718-725
As a novel tumor treatment,photodynamic therapy(PDT)has been widely used in clinical treatment of a variety of tumors due to its advantages,such as fewer adverse reactions,precise targeting and repeatability of treatment.Unlike conventional treatments,such as surgery,chemotherapy and radiotherapy,PDT not only eliminates the primary tumor but also effectively inhibits metastatic tumors by activating the body's immune response.However,the PDT-activated immune response is influenced by multiple factors,including the localization and dose of photosensitizer in the cells,light parameters,oxygen concentration in the tumor,and the integrity of immune function.This review summarizes the mechanisms behind the PDT-activated anti-tumor immune response,systematically examines the key influencing factors on the immune effect of PDT,and discusses the future development direction of PDT in cancer treatment.
3.Mechanism of Honghua Oral Liquid in Alleviating Neuropathic Pain
Qiuyan GUO ; Minghong ZHAO ; Tianming LU ; Fei XIA ; Ying ZHANG ; Hongbing ZHANG ; Xiaoru ZHAI ; Qian YANG ; Yongdong LI ; Jin LI ; Xin LI ; Shuo SHEN ; Liwei GU ; Maobo DU
Chinese Journal of Experimental Traditional Medical Formulae 2023;29(6):222-230
ObjectiveTo investigate the pharmacodynamic characteristics and explore the molecular mechanism of Honghua oral liquid (HOL) in relieving neuropathic pain (NP). MethodHealthy male SD rats were randomly assigned into sham group, model group, low-, medium-, high-dose (0.5, 1.0, 2.0 mL·kg-1·d-1, respectively) HOL groups, and a positive drug (pregabalin, 25 mg·kg-1·d-1) group, with 6 rats in each group. Spinal nerve ligation (SNL) of L5 was conducted in other groups except the sham group. Drug administration was performed 3 days after the SNL surgery for 2 consecutive weeks, and samples were collected after the end of the administration. During the treatment period, the mechanical pain threshold and cold pain threshold were determined to measure the pain-relieving effect of HOL. Transcriptome sequencing was performed on hippocampal tissue samples from the sham, model, and high-dose HOL groups, and differentially expressed genes between the sham group and the model group as well as the model group and HOL high-dose group were obtained. After pathway enrichment analysis, we selected the targets which were closely related to neuroinflammation for validation, and predicted the specific binding sites of the major active components in HOL with the targets through molecular docking. In addition, the serum levels of tumor necrosis factor-α (TNF-α) and interleukin-10 (IL-10) were determined by enzyme-linked immunosorbent assay (ELISA) to evaluate the effect of HOL on neuroinflammation in NP rats. ResultCompared with the sham group, SNL decreased the mechanical pain threshold and cold pain threshold (P<0.05). Compared with the model group, HOL recovered the mechanical pain threshold and cold pain threshold (P<0.05). The transcriptome data showed that 376 differentially expressed genes (DEGs) were identified between the model group and the sham group, including 124 upregulated genes and 252 downregulated genes, and 194 DEGs between the model group and the high-dose HOL group, including 33 upregulated genes and 161 downregulated genes. Among them, insulin-like growth factor 1(IGF1), matrix metallopeptidase-2 (MMP-2), matrix metallopeptidase-14 (MMP-14), erb-B2 receptor tyrosine kinase 2 (ERBB2), and integrin subunit alpha 5 (ITGA5) associated with NP were selected for further validation. The Real-time fluorescence quantitative polymerase chain reaction(Real-time PCR) results showed that compared with the sham group, the modeling up-gurelated the mRNA levels of the above five molecules in the hippocampus (P<0.01). Compared with model group, HOL down-regulated the mRNA levels of these molecules (P<0.01). The molecular docking results showed that the main active components of safflower, hydroxysafflor yellow A, kaempferol, and quercetin, formed stable hydrogen bonds with the amino acid residues of IGF1, MMP-2, MMP-14, ERBB2, and ITGA5. The enzyme-linked immunosorbent assay(ELISA) results showed that compared with those in the sham group, the serum levels of TNF-α and IL-10 were out of balance in the model rats (P<0.01). Compared with the model group, HOL lowered the level of the pro-inflammatory cytokine TNF-α (P<0.01) and elevated that of the anti-inflammatory cytokine IL-10 (P<0.05). ConclusionHOL exerts analgesic effect on SNL rats by inhibiting neuroinflammation.
4.Chinese expert consensus on the diagnosis and treatment of osteoporotic periarticular fracture of the shoulder in the elderly (version 2023)
Yan HU ; Dongliang WANG ; Xiao CHEN ; Zhongmin SHI ; Fengjin ZHOU ; Jianzheng ZHANG ; Yanxi CHEN ; Liehu CAO ; Sicheng WANG ; Jianfei WANG ; Hongliang WANG ; Yong FENG ; Zhimin YING ; Chengdong HU ; Qinglin HAN ; Ming LI ; Xiaotao CHEN ; Zhengrong GU ; Biaotong HUANG ; Liming XIONG ; Yunfei ZHANG ; Zhiwei WANG ; Baoqing YU ; Yong WANG ; Lei ZHANG ; Lei YANG ; Peijian TONG ; Ximing LIU ; Qiang ZHOU ; Feng NIU ; Weiguo YANG ; Wencai ZHANG ; Shijie CHEN ; Jinpeng JIA ; Qiang YANG ; Tao SHEN ; Bin YU ; Peng ZHANG ; Yong ZHANG ; Jun MIAO ; Kuo SUN ; Haodong LIN ; Yinxian YU ; Jinwu WANG ; Kun TAO ; Daqian WAN ; Lei WANG ; Xin MA ; Chengqing YI ; Hongjian LIU ; Kun ZHANG ; Guohui LIU ; Dianying ZHANG ; Zhiyong HOU ; Xisheng WENG ; Yingze ZHANG ; Jiacan SU
Chinese Journal of Trauma 2023;39(4):289-298
Periarticular fracture of the shoulder is a common type of fractures in the elderly. Postoperative adverse events such as internal fixation failure, humeral head ischemic necrosis and upper limb dysfunction occur frequently, which seriously endangers the exercise and health of the elderly. Compared with the fracture with normal bone mass, the osteoporotic periarticular fracture of the shoulder is complicated with slow healing and poor rehabilitation, so the clinical management becomes more difficult. At present, there is no targeted guideline or consensus for this type of fracture in China. In such context, experts from Youth Osteoporosis Group of Chinese Orthopedic Association, Orthopedic Expert Committee of Geriatrics Branch of Chinese Association of Gerontology and Geriatrics, Osteoporosis Group of Youth Committee of Chinese Association of Orthopedic Surgeons and Osteoporosis Committee of Shanghai Association of Chinese Integrative Medicine developed the Chinese expert consensus on the diagnosis and treatment of osteoporotic periarticular fracture of the shoulder in the elderly ( version 2023). Nine recommendations were put forward from the aspects of diagnosis, treatment strategies and rehabilitation of osteoporotic periarticular fracture of the shoulder, hoping to promote the standardized, systematic and personalized diagnosis and treatment concept and improve functional outcomes and quality of life in elderly patients with osteoporotic periarticular fracture of the shoulder.
5.Effectiveness of 13-valent pneumococcal conjugate vaccine against invasive disease caused by serotype 19A in children: a meta-analysis.
Zhao Jun LU ; Yan LIU ; Jian DU ; Jun WANG ; Xin Ren CHE ; Wei JIANG ; Xiao Ping ZHANG ; Wen Wen GU ; Yu Yang XU ; Xue Chao ZHANG ; Jing WANG ; Qi Xin XIE ; Ying Ying YANG ; Lin Tao GU
Chinese Journal of Preventive Medicine 2023;57(12):2181-2187
Objective: Using Meta-analysis to evaluate the vaccine effectiveness of 13-valent pneumococcal conjugate vaccine (PCV13) against invasive Streptococcus pneumoniae disease (IPD) caused by serotype 19A in children <5 years old. Methods: "Streptococcus pneumoniae infection""invasive pneumococcal disease""13-valent pneumococcal polysaccharide conjugate vaccine""PCV13""effectiveness""infant""child" and related terms were searched from China National Knowledge Infrastructure (CNKI), WANFANG DATA, PubMed, SCOPUS and Web of science with no limited on language, region and research institution. The retrieval time was limited from January 2010 to February 2023 and cohort study, case-control study and randomized controlled trial were included. Data were extracted from eligible studies by two independent reviewers, and after study quality assessment by NOS scale, Meta-analysis was completed using Stata 16.0 software. Results: A total of 2 340 related literatures were searched, and 10 literatures were finally included, including 5 case-control studies and 5 indirect cohort studies, which showed good literature quality. The vaccine effectiveness against serotype 19A IPD of PCV13 in children was 83.91% (95%CI: 78.92%-88.89%), and the subgroup analysis (P=0.240) showed there was no significant difference among the case-control study (VE=87.34%, 95%CI:79.74%-94.94%) and the indirect cohort study (VE=81.30%, 95%CI:74.69%-87.92%). The funnel plot and Egger test suggested that the possibility of publication bias was small. Conclusion: The present evidence indicates that PCV13 has a good vaccine effectiveness against serotype 19A IPD in children, and it is recommended to further increase the vaccination rate of PCV13 to reduce the disease burden of IPD in children <5 years old.
Child
;
Humans
;
Child, Preschool
;
Case-Control Studies
;
Cohort Studies
;
Serogroup
;
Vaccines, Conjugate/therapeutic use*
;
China
;
Pneumococcal Infections/prevention & control*
6.Mechanical effects of needle texture on acupoint tissue.
Ming-Zhu SUN ; Xin WANG ; Ying-Chen LI ; Wei YAO ; Wei GU
Journal of Integrative Medicine 2023;21(3):254-267
OBJECTIVE:
This study aims to clarify how the stimulation of acupuncture points is achieved by needles with different surface texture during acupuncture; it also seeks to lessen injury at the insertion site and increase the therapeutic efficacy of acupuncture, by simulating the mechanical effects of various needle surface patterns on Zusanli (ST36) without changing the radius of acupuncture needles.
METHODS:
Five acupuncture needle models with different surface patterns, including the smooth needle, the lined needle, the ringed needle, the left-hand threaded needle and the right-hand threaded needle, and a layered model of the Zusanli acupoint were used to investigate how to reduce tissue damage and increase stimulation during acupuncture treatment. Puncturing of the skin as well as lifting-inserting and twisting needle manipulations were simulated using these models, and the degree of damage and force of stimulation caused by the acupuncture needles with different surface patterns during acupuncture were compared.
RESULTS:
The smooth needle and the lined needle caused the least tissue damage during insertion, while the left-hand threaded and the right-hand threaded needles caused the most damage. The ringed needle, the left-hand threaded needle and the right-hand threaded needle stimulated the acupoint tissue more during lifting-inserting manipulations, while the lined needle and the smooth needle produced less stimulation. The stimulation of the lined needle on the acupoint tissue was the largest during twisting manipulation, whereas the left-hand threaded needle and the right-hand threaded needle had smaller effects. In lifting-inserting and twisting manipulations, both the left-hand threaded needle and right-hand threaded needle provided more stimulation, but the torsion direction in which they produced better stimulation was the opposite.
CONCLUSION
According to the simulation results, the ringed pattern enhances stimulation best in the lifting-inserting manipulation, whereas the lined pattern enhances stimulation best in the twisting manipulation. Both the right-hand and left-hand thread patterns have certain enhancing effects in these two operations. Taking the geometric properties of the pattern into account, the left-hand thread pattern and the right-hand thread pattern have the geometric characteristics of both the lined pattern and the ringed pattern. To conclude, a pattern perpendicular to the movement direction during the acupuncture manipulation creates more stimulation. These results have significance for future needle design. Please cite this article as: Sun MZ, Wang X, Li YC, Yao W, Gu W. Mechanical effects of needle texture on acupoint tissue. J Integr Med. 2023; 21(3): 254-267.
Acupuncture Points
;
Needles
;
Acupuncture Therapy/methods*
;
Hand
7.Regional analysis of high risk factors of hypertensive disorders in pregnancy with organ or system impairment.
Xin LYU ; Wei Yuan ZHANG ; Jing Xiao ZHANG ; Yu Qian WEI ; Xiao Li GUO ; Shi Hong CUI ; Jian Ying YAN ; Xiao Yan ZHANG ; Chong QIAO ; Rong ZHOU ; Wei Rong GU ; Xian Xia CHEN ; Zi YANG ; Xiao Tian LI ; Jian Hua LIN
Chinese Journal of Obstetrics and Gynecology 2023;58(6):416-422
Objective: To explore the influencing factors of pregnancy-induced hypertensive disorders in pregnancy (HDP) with organ or system impairment in pregnant women, and to analyze and compare the differences of HDP subtypes in different regions of China. Methods: A total of 27 680 pregnant women with HDP with complete data from 161 hospitals in 24 provinces, autonomous regions and municipalities were retrospectively collected from January 1, 2018 to December 31, 2018. According to their clinical manifestations, they were divided into hypertension group [a total of 10 308 cases, including 8 250 cases of gestational hypertension (GH), 2 058 cases of chronic hypertension during pregnancy] and hypertension with organ or system impairment group [17 372 cases, including 14 590 cases of pre-eclampsia (PE), 137 cases of eclampsia, 2 645 cases of chronic hypertension with PE]. The subtype distribution of HDP in East China (6 136 cases), North China (4 821 cases), Central China (3 502 cases), South China (8 371 cases), Northeast China (1 456 cases), Southwest China (2 158 cases) and Northwest China (1 236 cases) were analyzed. By comparing the differences of HDP subtypes and related risk factors in different regions, regional analysis of the risk factors of HDP pregnant women with organ or system impairment was conducted. Results: (1) The proportions of HDP pregnant women with organ or system impairment in Northeast China (79.05%, 1 151/1 456), Central China (68.42%, 2 396/3 502) and Northwest China (69.34%, 857/1 236) were higher than the national average (62.76%, 17 372/27 680); the proportions in North China (59.18%, 2 853/4 821), East China (60.85%, 3 734/6 136) and South China (59.56%, 4 986/8 371) were lower than the national average, and the differences were statistically significant (all P<0.05). (2) Univariate analysis showed that the proportions of primiparas, non-Han, non-urban household registration, irregular prenatal examination and PE history in the hypertension with organ or system impairment group were higher than those in the hypertension group, and the differences were statistically significant (all P<0.05). Multivariate logistic regression analysis showed that primiparas, non-Han, non-urban household registration, irregular prenatal examination and PE history were independent risk factors for HDP pregnant women with organ or system impairment (all P<0.05). (3) Primipara: the rates of primipara in Northeast China, North China and Southwest China were higher than the national average level, while those in South China, Central China and Northwest China were lower than the national average level. Non-Han nationality: the rates of non-Han nationality in Northeast China, North China and Northwest China were higher than the national average, while those in East China, South China and Central China were lower than the national average. Non-urban household registration: the rates of non-urban household registration in Northeast China, North China, and Southwest China were lower than the national average, while those in East China, Central China were higher than the national average. Irregular prenatal examination: the rates of irregular prenatal examination in North China, South China and Southwest regions were lower than the national average level, while those in Northeast China, Central China and Northwest China were higher than the national average level. History of PE: the incidence rates of PE in Northeast China, North China, South China and Southwest China were lower than the national average level, while those in Central China and Northwest China were higher than the national average level. Conclusions: Primiparas, non-Han, non-urban household registration, irregular prenatal examination, and PE history are risk factors for HDP pregnant women with organ or system impairment. Patients in Northeast, Central and Northwest China have more risk factors, and are more likely to be accompanied by organ or system function damage. It is important to strengthen the management of pregnant women and reduce the occurrence of HDP.
Humans
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Pregnancy
;
Female
;
Hypertension, Pregnancy-Induced/diagnosis*
;
Retrospective Studies
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Pre-Eclampsia/epidemiology*
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Risk Factors
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Incidence
8.Lifestyle improvement and the reduced risk of cardiovascular disease: the China-PAR project.
Ying-Ying JIANG ; Fang-Chao LIU ; Chong SHEN ; Jian-Xin LI ; Ke-Yong HUANG ; Xue-Li YANG ; Ji-Chun CHEN ; Xiao-Qing LIU ; Jie CAO ; Shu-Feng CHEN ; Ling YU ; Ying-Xin ZHAO ; Xian-Ping WU ; Lian-Cheng ZHAO ; Ying LI ; Dong-Sheng HU ; Jian-Feng HUANG ; Xiang-Feng LU ; Dong-Feng GU
Journal of Geriatric Cardiology 2023;20(11):779-787
BACKGROUND:
The benefits of healthy lifestyles are well recognized. However, the extent to which improving unhealthy lifestyles reduces cardiovascular disease (CVD) risk needs to be discussed. We evaluated the impact of lifestyle improvement on CVD incidence using data from the China-PAR project (Prediction for Atherosclerotic Cardiovascular Disease Risk in China).
METHODS:
A total of 12,588 participants free of CVD were followed up for three visits after the baseline examination. Changes in four lifestyle factors (LFs) (smoking, diet, physical activity, and alcohol consumption) were assessed through questionnaires from the baseline to the first follow-up visit. Cox proportional hazard models were used to estimate hazard ratios (HRs) and corresponding 95% confidence intervals (CIs). The risk advancement periods (RAPs: the age difference between exposed and unexposed participants reaching the same incident CVD risk) and population-attributable risk percentage (PAR%) were also calculated.
RESULTS:
A total of 909 incident CVD cases occurred over a median follow-up of 11.14 years. Compared with maintaining 0-1 healthy LFs, maintaining 3-4 healthy LFs was associated with a 40% risk reduction of incident CVD (HR = 0.60, 95% CI: 0.45-0.79) and delayed CVD risk by 6.31 years (RAP: -6.31 [-9.92, -2.70] years). The PAR% of maintaining 3-4 unhealthy LFs was 22.0% compared to maintaining 0-1 unhealthy LFs. Besides, compared with maintaining two healthy LFs, improving healthy LFs from 2 to 3-4 was associated with a 23% lower risk of CVD (HR = 0.77, 95% CI: 0.60-0.98).
CONCLUSIONS
Long-term sustenance of healthy lifestyles or improving unhealthy lifestyles can reduce and delay CVD risk.
9.Effect of blue light on the biological activity of human skin keratinocytes, fibroblasts and melanocytes: a preliminary study
Yaqi YANG ; Xin JIANG ; Jinxiu CHANG ; Ying TU ; Yanyun MA ; Li HE ; Hua GU
Chinese Journal of Dermatology 2023;56(12):1115-1122
Objective:To preliminarily investigate the effect of blue light on the biological activity of human skin keratinocytes, fibroblasts and melanocytes.Methods:Discarded foreskin tissues were collected from 10 healthy children aged from 3 to 12 years after circumcision surgery in the First Affiliated Hospital of Kunming Medical University from June 2021 to December 2021. After epidermis-dermis separation, selective culture was performed to isolate keratinocytes, fibroblasts, and melanocytes. According to the pre-experiment results, the above three types of cells were irradiated with 440 - 450 nm blue light at doses of 0, 5, 10, 20, 30, and 40 J/cm 2, and then continued to be cultured for 0, 6, 24, and 48 hours. Cell counting kit 8 (CCK8) assay was performed to evaluate cellular proliferative activity at each time point, enzyme-linked immunosorbent assay (ELISA) to detect levels of interleukin (IL) -18, IL-33, nerve growth factor (NGF), and granulocyte-macrophage colony-stimulating factor (GM-CSF) secreted by keratinocytes, as well as levels of IL-33 and keratinocyte growth factor (KGF) secreted by fibroblasts, NaOH lysis method to determine melanin synthesis rates in melanocytes, and Western blot analysis to determine the relative expression of tyrosinase (TYR), tyrosine-related protease 1 (TRP-1) and dopachrome isomerase (DCT) in melanocytes. Two-way analysis of variance was used to analyze group effects, time effects and interaction effects. Results:After irradiation with blue light, the cellular proliferative activity significantly differed among different doses of blue light irradiation groups and different time points in keratinocytes ( Ftime = 516.20, Fdose = 421.20, Finteraction = 25.05, all P < 0.003), fibroblasts ( Ftime = 129.30, Fdose = 477.80, Finteraction = 10.91, all P < 0.003), and melanocytes ( Ftime = 77.61, Fdose = 138.70, Finteraction = 3.50, all P < 0.003) ; immediately after irradiation, the proliferative activity of keratinocytes and fibroblasts was significantly lower in the 20 - 40 J/cm 2 blue light group than in the 0 J/cm 2 blue light group (all P < 0.003), and the proliferative activity of melanocytes was significantly higher in the 5 J/cm 2 blue light group than in the 0 J/cm 2 blue light group ( P < 0.003) ; the proliferative activity of the 3 types of cells showed decreasing trends with the increase of blue light irradiation doses and culture time. ELISA showed that the concentrations of IL-18, IL-33, NGF, and GM-CSF secreted by keratinocytes, as well as the concentrations of IL-33 and KGF secreted by fibroblasts, tended to increase with the increase of blue light irradiation doses and culture time. The melanin synthesis rates in melanocytes significantly differed among different doses of blue light irradiation groups and different time points ( Ftime = 833.50, Fdose = 249.40, Finteraction = 81.38, all P < 0.003) ; during 0 - 24 hours after blue light irradiation, the melanin synthesis rates tended to increase with the increase of blue light irradiation doses and time; during 24 - 48 hours, the melanin synthesis rates showed decreasing trends with the increase of blue light irradiation doses and culture time compared with that at 24 hours after irradiation; 24 hours after irradiation, the melanin synthesis rates were significantly higher in the 5, 10, 20, 30 and 40 J/cm 2 blue light groups (159.50% ± 10.88%, 218.76% ± 8.49%, 333.72% ± 7.72%, 393.29% ± 6.00%, 427.21% ± 8.39%, respectively) than in the 0 J/cm 2 blue light group (102.29% ± 6.57%, all P < 0.003). The relative expression of TYR ( Ftime = 67.94, Fdose = 28.99, Finteraction = 3.71, all P < 0.003), TRP-1 ( Ftime = 21.73, Fdose = 8.38, both P < 0.003) and DCT ( Ftime = 34.51, Fdose = 11.79, both P < 0.003) in melanocytes significantly differed among different doses of blue light irradiation groups and different time points, and tended to increase with the increase of blue light irradiation doses and culture time. Conclusion:Blue light irradiation at doses of 5 - 40 J/cm 2 could inhibit the proliferative activity of human skin keratinocytes, fibroblasts, and melanocytes, and the inhibitory effect tended to increase with the increase of blue light irradiation doses, except an enhancing effect on the proliferative activity of melanocytes observed immediately after irradiation with blue light at 5 J/cm 2; additionally, blue light irradiation at 5 - 40 J/cm 2 could enhance the expression of melanin synthesis-related enzymes in melanocytes, and increase the melanin synthesis rate in melanocytes over a short period of time.
10.Effectiveness of 13-valent pneumococcal conjugate vaccine against invasive disease caused by serotype 19A in children: a meta-analysis.
Zhao Jun LU ; Yan LIU ; Jian DU ; Jun WANG ; Xin Ren CHE ; Wei JIANG ; Xiao Ping ZHANG ; Wen Wen GU ; Yu Yang XU ; Xue Chao ZHANG ; Jing WANG ; Qi Xin XIE ; Ying Ying YANG ; Lin Tao GU
Chinese Journal of Preventive Medicine 2023;57(12):2181-2187
Objective: Using Meta-analysis to evaluate the vaccine effectiveness of 13-valent pneumococcal conjugate vaccine (PCV13) against invasive Streptococcus pneumoniae disease (IPD) caused by serotype 19A in children <5 years old. Methods: "Streptococcus pneumoniae infection""invasive pneumococcal disease""13-valent pneumococcal polysaccharide conjugate vaccine""PCV13""effectiveness""infant""child" and related terms were searched from China National Knowledge Infrastructure (CNKI), WANFANG DATA, PubMed, SCOPUS and Web of science with no limited on language, region and research institution. The retrieval time was limited from January 2010 to February 2023 and cohort study, case-control study and randomized controlled trial were included. Data were extracted from eligible studies by two independent reviewers, and after study quality assessment by NOS scale, Meta-analysis was completed using Stata 16.0 software. Results: A total of 2 340 related literatures were searched, and 10 literatures were finally included, including 5 case-control studies and 5 indirect cohort studies, which showed good literature quality. The vaccine effectiveness against serotype 19A IPD of PCV13 in children was 83.91% (95%CI: 78.92%-88.89%), and the subgroup analysis (P=0.240) showed there was no significant difference among the case-control study (VE=87.34%, 95%CI:79.74%-94.94%) and the indirect cohort study (VE=81.30%, 95%CI:74.69%-87.92%). The funnel plot and Egger test suggested that the possibility of publication bias was small. Conclusion: The present evidence indicates that PCV13 has a good vaccine effectiveness against serotype 19A IPD in children, and it is recommended to further increase the vaccination rate of PCV13 to reduce the disease burden of IPD in children <5 years old.
Child
;
Humans
;
Child, Preschool
;
Case-Control Studies
;
Cohort Studies
;
Serogroup
;
Vaccines, Conjugate/therapeutic use*
;
China
;
Pneumococcal Infections/prevention & control*

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