1.Protective effect of miconazole on white matter damage induced by anoxia and ischemia in rats
Wenyan TANG ; Xuewen SU ; Yinxiang YANG ; Zuo LUAN
Journal of Clinical Pediatrics 2017;35(6):462-466
Objective To explore the protective effect of miconazole on white matter damage (WMD) in neonatal rats. Methods Three-day-old neonatal SD rats were randomly divided into sham group, WMD model group, 10 mg/(kg·d) miconazole group and 40 mg/(kg·d) miconazole group with 15 rats each. Rats in WMD model group were subjected to the ligation of right carotid artery, and then kept in a chamber with 6% oxygen and 94% nitrogen for 80 min to establish the white matter damage model. The rats in miconazole group were intraperitoneally injected with different doses (10 and 40mg/kg) of miconazole, dissolved in dimethyl sulfoxide (DMSO), for five consecutive days, and rats in WMD model group were injected with the same volume of DMSO. Myelin basic protein (MBP) of white matter was detected by immunofluorescence staining and western blot. Myelin sheaths of corpus callosum were observed by transmission electron microscopy. Weight changes of rats were compared among groups. Results Immunofluorescence staining and western blot showed that, after treatment with miconazole, the MBP expression level of corpus callosum was higher than in WMD model group (P<0.05). In WMD model group, the myelin sheath of corpus callosum had loose structure and a large number of small vacuoles with decreased thickness of myelin sheath. After treatment with miconazole, myelinolysis induced by anoxia and ischemia could be improved significantly. The increase in weight of rats in WMD model group was significantly less than that in sham group. And after miconazole treatment, the rate of weight gain of rats was increased. Conclusion Miconazole can significantly reduce the brain white matter damage induced by anoxia and ischemia through promoting myelination, and then improves the growth and development in rats.
2.Comparison of the influences of enteral nutrition and parenteral nutrition on the inflammatory factors and immune functions in patients with systemic inflammatory response syndrome
Lihui ZHANG ; Hong LIU ; Xuewen LI ; Bingmei CHANG ; Yingtao ZHANG ; Huiyu SU
Chinese Journal of Clinical Nutrition 2010;18(6):343-346
Objective To compare influences of enteral nutrition (EN) and parenteral nutrition (PN) on the inflammatory factors and immune functions in patients with systemic inflammatory response syndrome. Methods Totally 85 patients who were treated in the First Hospital of Shanxi Medical University, Shanxi Province People's Hospital, and Taiyuan Central Hospital from April, 2006 to April, 2010 were enrolled in this study and divided into EN group (n = 49) and PN group (n = 36) according to nutrition support modes. The changes of inflammatory factors and immune functions after nutritional supports were recorded and compared between these two groups. Results The weight, arm circumference, skin fold thickness of brachial triceps, total protein, and serum albumin were significantly improved on the 7th and 14th day after nutrition supports in both two groups compared with the baseline levels (all P < 0.05). On the 14th day after nutritional support, the levels of total protein and serum albumin were significantly higher in EN group than in PN group. On the 7th and 14th day, the levels of tumor necrosis factor-α, Interleukin (IL)-8, and IL-1β in EN group were significantly lower than those in PN group and baseline levels (all P < 0. 05). The blood CD4/CD8 and IgG in EN group were significantly increased compared with the baseline levels and those in PN group (both P <0. 05). Conclusions Both PN and EN can effectively improve the nutritional status of patients with SIRS. EN has superior effectiveness in EN group than in PN group in terms of improving nutritional status, ameliorating immune function, and reducing the release of inflammatory factors.
3.Epidemiological investigation on a case of acute flaccid paralysis with detection of vaccine-derived poliovirus
TANG Xuewen ; BAI Yiran ; SU Ying ; GONG Liming ; YAN Rui ; ZHU Yao ; HE Hanqing
Journal of Preventive Medicine 2025;37(2):178-180,188
Abstract
In April 2021, type Ⅰ vaccine-derived poliovirus (VDPV) was detected from two fecal samples of a male infant with acute flaccid paralysis (AFP) in Zhejiang Province when he was admitted to the Children's Hospital Affiliated to Fudan University in Shanghai, with 12 and 14 nucleotide mutations in the VP1 region, respectively. The case had a history of immunization with three doses of poliovirus vaccines, and grade Ⅲ proximal muscle strength and grade Ⅱ distal muscle strength of the right lower limb. After symptomatic treatment, the activity of the right lower limb and the muscle strength was significantly restored, thus he was discharged. VDPV was not detected from subsequent (the 8th to 12th) fecal samples of the case and fecal samples of close contacts. No similar cases were found in medical institutions in the county, surrounding areas, neighboring villages or towns. Since the case did not exhibit clinical symptoms of poliomyelitis caused by VDPV, poliomyelitis was excluded, and the case was diagnosed with hemophilia type A based on the epidemiological investigation, laboratory tests, and the history of poliomyelitis vaccination. This event involved cross-provincial (municipal) cooperation and was responsed promptly, preventing further spread of the virus. It suggested that the sensitivity of the AFP case surveillance system should be maintained, environmental monitoring methods should be increased, and the poliomyelitis vaccination should be promoted to prevent the spread of the virus.
4.Research Thinking of Colon Therapy in the Management of Chronic Kidney Disease with Traditional Chinese Medicine Based on the Theory of Gut-kidney Axis
Chuan ZOU ; Yuchi WU ; Lihong YANG ; Zhaoyu LU ; Guobin SU ; Yuqun ZENG ; Xuewen LUO ; Xusheng LIU ; Chunlin HUANG
World Science and Technology-Modernization of Traditional Chinese Medicine 2013;(5):947-951
Chronic kidney disease (CKD) is becoming a global social problem. It is important to slow down the progression of CKD for economic and social concerns. In recent years, it has been found that colon is one of the vital organs which produce uremic toxins. And enterogenous uremic toxins are closely related to the prognosis of CKD. Theory of gut-kidney axis for the slowdown of CKD progression was raised by foreign scholars and became the research hot spot. Colon therapy with traditional Chinese medicine (TCM) has been widely used in clinical practice and is believed to slow down the progression of CKD by numerous clinical reports. However, low re-search quality and ambiguous results limited its further application. Under the guidance of senior TCM Professor Huang Chunlin, who emphasized the method of draining turbidity through bowels in the management of CKD, from the Nephrology Center, Guangdong Provincial Hospital of Chinese Medicine, as well as the modern theory of gut-kidney axis, we had carried out a series of exploratory researches which will provide data and methodology support for further confirmatory studies and improve its effectiveness.
5.Progress of LINGO-1 in neurological diseases
Jiayi LIU ; Hua ZHU ; Xuewen SU
International Journal of Pediatrics 2024;51(1):59-63
LINGO-1,a Nogo receptor-interacting protein-1 rich in leucine repeat sequences and immunoglobulin structural domains,which is specifically expressed in neurological diseases. In recent years,more and more evidences indicate that LINGO-1 plays an important role in glial scar formation,cell death and inflammatory reaction. LINGO-1 inhibits oligodendrocyte activation,and prevents axon and myelin formation and functional recovery,and is therefore considered to be a negative regulator of neuronal survival,neurite extension and axon myelination. The change of LINGO-1 level is related to the occurrence and development of many neurological diseases. This article reviews the physiological function of LINGO-1 and summarizes the latest research progress of LINGO-1 in multiple sclerosis,spinal cord injury,neonatal brain injury and epilepsy,so as to explore new strategies for the treatment of neurological diseases.
6.Advances in the diagnosis of vasoinhibitory vasovagal syncope in children
Hua QING ; Xuewen SU ; Hua ZHU
International Journal of Pediatrics 2024;51(2):99-102
Vasoinhibitory vasovagal syncope(VVS-VI)in children is the most common type of responses in vasovagal syncope(VVS)and has a high incidence. VVS-VI is a recurrent disorder caused by a malfunctioning autonomic nervous system. VVS-VI can be caused by a variety of stimuli such as strong emotions,sudden changes in posture,hot and stuffy environments and prolonged standing. It was found that VVS-VI is a benign disease without organic lesions and is self-limiting and reversible,but VVS-VI children often suffer irreversible consequences due to secondary injuries. VVS-VI seriously affects the life and academic performance of children,endangers their physical and mental health,and causes anxiety among parents,so the number of studies on VVS-VI has increased in recent years. This article summarizes the progress of diagnostic research on VVS-VI in children,and provides a reference for related research.
7.SWOT analysis of construction of intelligent vaccination clinics in Zhejiang Province
ZHENG Shuhan ; SHEN Lingzhi ; DENG Xuan ; SU Ying ; LUO Feng ; ZHOU Yang ; TANG Xuewen ; YAN Rui ; ZHU Yao ; HE Hanqing
Journal of Preventive Medicine 2024;36(8):669-673
Objective:
To analyze the strengths, weaknesses, opportunities and threats of the construction on intelligent vaccination clinics in Zhejiang Province, so as to provide countermeasures for promoting the construction of intelligent vaccination clinics in Zhejiang Province.
Methods:
By reviewing the annual reports of Zhejiang immunization planning, survey data from Zhejiang Centers for Disease Control and Prevention and Immunization Intelligent Service System, data of human resources of immunization planning, vaccine procurement, construction progress of intelligent vaccination clinics and vaccination were collected. The relevant literature was searched to gather information on the construction standards and norms of intelligent vaccination clinics. The analysis of the strengths, weaknesses, opportunities and threats (SWOT) of the construction of intelligent vaccination clinics was conducted, and corresponding countermeasures and suggestions were proposed.
Results:
The National Immunization Program reported vaccine rate in Zhejiang Province is more than 99%, and standardized vaccination clinics have been popularized throughout the province. The vaccination staff are professional, and a province-wide intelligent immunization service information system has been established, providing the resources and conditions for the construction of intelligent vaccination clinics. However, there are problems such as low data quality and matching efficiency in vaccination, insufficient data interoperability and sharing, unbalanced regional capabilities in intelligent transformation, and uneven distribution of talent and resources. It is crucial to seize the opportunities presented by the development of big data and artificial intelligence, rely on the regional development of the Internet and health industry, seize the opportunity of rapid growth in demand for intelligent vaccination services and high public acceptance, accelerate the construction of intelligent vaccination clinics, and establish intelligent vaccination service standards as soon as possible.
Conclusion
We should seize the opportunities presented by the digital reform and development, fully utilize the existing vaccination resources and strengths, address the shortcomings, and accelerate the construction of intelligent vaccination clinics in Zhejiang Province.
8.Transvaginal Contrast-enhanced Sonography in the Differentiation of Benign from Malignant Adnexal Masses
Junyan WANG ; Qiuli CUI ; Aijun LIU ; Xuewen GAO ; Longxia WANG ; Li SU ; Yuanqing YAO ; Enfeng ZHAO ; Xiuli LI ; Weiping LI ; Hong XU ; Zhixian YUAN ; Qian LIN
Chinese Journal of Medical Imaging 2009;(6):412-415
Purpose:The study was designed to investigate the feasibility of contrast-enhanced ultrasound in the differentiation of benign and malignant adnexal masses.Materials and Methods:Sixty-nine consecutive patients with adnexal masses received trans vaginal contrast-enhanced ultrasound.The image and perfusion features were assessed.Results:All of 26 malignant tumors showed detectable contrast enhancement,including 24 cases with a quick,heterogeneous or branching pattern.Among 39 benign lesions,24 were cystic with circle or half-circle enhancement,including 5 cases with intra-cystic septum or papillae slightly enhanced.The other 15 cases were solid,8 of them had slightly dotted enhancement.There are significant difference in enhancement patterns between benign and malignant masses ( P < 0.0001).The 4 cases of borderline tumors showed progressive,heterogeneous enhancement.Conclusion:Contrast-enhanced ultrasound is of value in the differentiation of benign and malignant adnexal masses.
9.Progress of the central nervous system myelin sheath development and related diseases in children
International Journal of Pediatrics 2023;50(8):544-548
The myelin sheath of the central nervous system(CNS)is a multilayer lipid membrane with oligodendrocyte membrane surrounding the axon.The development of myelin sheath in children follows the corresponding laws of time and space, and this process of myelination is considered to be related to children′s proper behavior and function.The myelin sheath development of CNS in childhood is a multi-step and extremely complex process, and the integrity of myelin sheath plays a crucial role in shaping CNS function.At present, it has been found that many neurological diseases in children, such as multiple sclerosis, transverse myelitis and pediatric optic neuritis are closely related to myelin sheath abnormality.Therefore, this paper reviews the progress of myelin sheath development and related diseases in childhood, so as to provide a basis for clinical diagnosis and treatment of myelin sheath abnormalities.
10.Progress of genes related to benign convulsions with mild gastroenteritis
International Journal of Pediatrics 2024;51(5):321-325
The incidence of benign convulsions with mild gastroenteritis(CwG)is increasing year by year.Cluster seizures are one of the characteristics of CwG and are difficult to control with antiepileptic drugs.The pathogenesis of CwG is complex and is a hot topic of current research.Relevant studies believe that genetic factors play an important role in its development.By exploring the pathological mechanism of CwG and clarifying the role of related genes in the development of CwG,gene research provides a theoretical basis for early screening,early prevention,early diagnosis,and early treatment of the possible clinical symptoms of CwG in the later stage,so as to provide clues for targeted therapy.This article reviews the research progress of CwG related genes,in order to understand its pathogenesis,effectively control recurrent seizures and prevent the appearance of possible clinical symptoms in the later stage.