Paroxysmal diseases of the nervous system associated with patent foramen ovale / 临床神经病学杂志

Patent foramen ovale(PFO)is a common congenital heart disease.The clinical manifestations of PFO are heterogeneous,which can easily lead to missed diagnosis and misdiagnosis.In recent years,people found PFO is related to a variety of nervous system diseases such as TIA,migraines,dizziness,syncope,seizures.This paper reviews the relationship between PFO and nervous system paroxysmal disease and its possible mechanism.This review aims to improve clinicians'understanding of PFO and provide ideas for the diagnosis and treatment of PFO.

Progress in researches for perampanel in the treatment of comorbidities of epilepsy / 中国临床药理学与治疗学

Sleep disorder, migraine, cognitive and behavioral disorders, anxiety and depression are common comorbidities of epilepsy. The comorbidity rate of epilepsy patients is eight times that of the general population, which affects the prognosis and quality of life of epilepsy patients. Perampanel (PER), as a third-generation antiseizure medication, has shown promising clinical research and application in the treatment of comorbidities in epilepsy. PER can improve the total sleep time, sleep latency and sleep efficiency of patients with epilepsy comorbid sleep disorder. PER also shows good efficacy in reducing seizure and migraine attacks of patients with epilepsy comorbid migraine. Meanwhile, the impact of PER on overall cognitive characteristics is neutral, with no systematic cognitive deterioration or improvement, but behavioral changes are one of the most common adverse events related to PER. For patients with comorbid anxiety and depression, PER does not exacerbate the anxiety and depression of epilepsy patients, and the severity of anxiety and depression in some patients will improve. This article will review the mechanism of action and clinical treatment research progress of PER on comorbidities of epilepsy.

Study on the biological exposure limit of whole blood chromium in occupational hexavalent chromium compounds exposed population / 中国职业医学

ObjectiveTo analyze the exposure-response relationship of peripheral whole blood chromium level and lung function as well as genetic toxicity indicators in workers exposed to hexavalent chromium [Cr(Ⅵ)] compounds, and to propose a biological exposure limit of whole blood chromium for soluble Cr(Ⅵ) compounds-exposed workers. Methods A total of 515 workers from a dynamic occupational Cr(Ⅵ) compounds-exposed cohort in an enterprise from 2010 to 2017 were selected as the research subjects using a retrospective cohort study. A total of 918 followed-up results of research subjects and baseline data of a cohort were analyzed based on bibliometric analysis. The results include lung function tests, whole blood chromium level detected by inductively coupled plasma-mass spectrometry, urinary 8-hydroxy-2′-deoxyguanosine (8-OHdG) detected by high performance liquid chromatography-tandem mass spectrometry, peripheral micronuclei frequency (MNF) detected by cytokinesis-block micronucleus assay, and mitochondrial DNA copy number (mtCN) detected by real-time fluorescence quantitative polymerase chain reaction. Results The results of bibliometric analysis showed that domestic and foreign studies on biological monitoring of Cr(Ⅵ) compounds increased year by year in the past 30 years, and whole blood chromium levels had a good correlation with the occupational Cr(Ⅵ) compounds exposure. The geometric mean of whole blood chromium levels in males and females among the occupational Cr(Ⅵ) compounds exposure cohort was 2.77 and 1.79 μg/L, respectively. A turning point appeared in 6.00 μg/L chromium in whole blood of the exposure-response curve of whole blood chromium levels with lung function indicators and genetic toxicity indicators. For each unit increase in the natural logarithm-transformed whole blood chromium level, the forced expiratory volume in one second (FEV1) decreased by 0.05 L, the FEV1/forced-vital-capacity decreased by 0.67%, the peak expiratory flow decreased by 0.15 L/s, the maximal mid-expiratory flow decreased by 0.09 L/s, the MNF increased by 0.149‰, the urinary 8-OHdG increased by 0.090 μg/g, and the mtCN increased by 0.013. When the whole blood chromium level was >6.00 μg/L, there was a significant increase in urinary 8-OHdG, MNF, and mtCN (all P<0.01). Conclusion The level of whole blood chromium can be used as a biomarker for occupational exposure to soluble Cr(Ⅵ) compounds. The preliminary biological exposure limit is set at 6.00 μg/L for whole blood chromium in workers exposed to soluble Cr(Ⅵ) compounds.

Research progress on the related treatment of progressive myoclonic epilepsy / 中国临床药理学与治疗学

Progressive myoclonic epilepsy (PME) is a rare epileptic syndrome closely associated with genetic factors. The disease is primarily inherited in an autosomal recessive manner, although there are rare cases that demonstrate autosomal dominant or mitochondrial inheritance. Common clinical features include myoclonus, multiple seizure types, and progressive decline in neurological and cognitive function. PME typically manifests in late childhood or adolescence but can occur at any age. It accounts for approximately 1% of epileptic syndromes among children and adolescents worldwide. In recent years, in addition to antiseizure medications, numerous non-pharmacological treatments have emerged, including dietary therapy, neuromodulatory therapy, immunomodulatory therapy, enzyme replacement therapy, gene therapy, etc. This article aims to review the research progress in the treatment of PME.

Genetic mechanisms and targeted treatment prospects for common developmental and epileptic encepha-lopathy / 中国神经精神疾病杂志

The majority of patients with developmental and epileptic encephalopathy(DEE)has genetic causes and presents with cognitive impairment and severe seizures.Although controlling seizures cannot improve cognitive impairment,targeted therapy based on individualized factors,corrects pathological and physiological processes with clear molecular genetic mechanisms in DEE patients,thereby achieving good clinical outcomes.According to the study of the molecular genetic mechanisms of related DEE such as SCN1A,KCNQ2/KCNQ3,CDKL5 and PCDH19,gene therapy such as antisense oligonucleotides(ASOs),Ataluren,adenovirus vectors,and gene editing has shown great promise for treatment of DEE,among which ASOs demonstrate enormous potential for treatment of DEE.Next-generation sequencing technologies,animal models,inducing polyenergic stem cell technologies,organ clusters from patient cells,and gene editing technologies can promote the development of future targeted epilepsy therapies.

Research progress of non-ion channel genes related to juvenile myoclonic epilepsy / 中国神经精神疾病杂志

Juvenile myoclonic epilepsy(JME)is a common subtype of idiopathic generalized epilepsy(IGE).Genetic factors play an important role in JME.Multiple genes and chromosomal loci have been found to be associated with the onset of JME.According to the different mechanisms involved in gene mutations causing JME,JME related genes can be divided into ion channel genes and non-ion channel genes.The mechanism of action of ion channel genes has gradually been clarified which only accounts for a few cases.The mechanism of action of JME related non-ion channel genes is not yet clear.This article will review the research progress of JME related non-ion channel genes from three aspects:neurotransmitter related genes(CHRNA4,GRM4,SLC6A4),nervous system development related genes(TOP3B,CILK1,BRD2,EFHC1)and other related genes(TAP-1,CX36).

Radiofrequency thermocoagulation of the sulcus bottom in type II focal cortical dysplasia-related epilepsy with tapered implantation of electrodes: a case report.

We report a 15-year-old male patient with recurrent epileptic seizures for 12 years. Oral multiple drugs do not work well to his condition. MRI FLAIR scans revealed focal cortical dysplasia type II in the right parietal lobe. The diagnosis of the patient was drug-refractory epilepsy, FCD-related secondary epilepsy. According to the shape of the FCD lesion, electrodes were implanted in a tapered pattern along the bottom of the sulcus to completely destroy the focus. Magnetic resonance imaging at 6 months after surgery revealed that the FCD at the sulcus bottom was completely destroyed. After 26 months of follow-up, the patient had undergone no epileptic seizures, reaching Engel class I. For FCD that are located deep in the brain and adjacent to functional areas, craniotomy has a high risk. And stereoelectroencephalography-guided radiofrequency thermocoagulation may be a preferred treatment.

Comparison of Low-polarity Volatile Constituents in Supercritical CO2 Extract from the Roots and Stem of Ilex asprella and Its Effects on the Proliferation of IEC- 6 Cells / 中国药房

OBJECTIVE： To compare low-polarity volatile constituents in supercritical CO2 extract from the roots and stem of Ilex asprella and its effects on the proliferation of IEC-6 in vitro， and to provide reference for making full use of wild resources of I. asprella and expanding its medicinal parts. METHODS： The low-polarity volatile constituents were extracted from the root and stem of I. asprella with supercritical fluid CO2 extraction（SFE-CO2）. The chemical constituents were analyzed by GC-MS. IEC-6 cells were treated with different concentrations of supercritical CO2 extracts （0， 1， 5， 10， 20， 40， 60， 80， 100 μg/mL） from roots or stems of I. asprella. MTT assay was used to detect the relative viability， and cell proliferation curve was drawn and EC50 of each extract were calculated. RESULTS： Sixty-two and forty-six low-polarity volatile constituents were identified from supercritical CO2 extract in the roots and stem of I. asprella with GC-MS； there were 24 common constituents totally， mainly including pelargonic acid（14.18％ and 6.14％），octanoic acid（10.59％ and 4.35％），hexanoic acid（8.63％ and 10.86％），paeonol（7.79％ and 6.00％），2-methyl-3-phenyl-propanal（6.3％ and 0.58％），acetic acid（1.72％ and 33.77％） in root and stem， respectively. The results of cell culture in vitro showed that when the concentration of supercritical CO2 extract from the roots and stems of I. asprella was lower （≤60 μg/mL）， it could significantly promote the proliferation of IEC-6 cells and their EC50 were 16.35， 20.20 μg/mL， respectively； when the concentration of the extract was higher （≥80 μg/mL）， it showed cytotoxicity and inhibited the proliferation of IEC-6 cells. CONCLUSIONS： There are similar species of volatile constituents in roots and stems of I. asprella and similar in vitro bioactivity of the supercritical CO2 extracts to IEC-6 cells. The short-chain fatty acids may be the active ingredient to promote cell proliferation， while paeonol may be the cytotoxic active ingredient.

A retrospective study of antiepileptic drugs, etiology and seizure patterns in hospitalized patients with epilepsy / 中国神经精神疾病杂志

Objective The aim of this study was to investigate and analyze the etiology, seizure type and anti-epileptic drugs (AEDs) utilization of in-patients with epilepsy Methods The study included 5563 cases in-patients with epilepsy. The etiology and seizure type and the date of type, quantity of AEDs in-patient department were collected and their usage frequency were analyzed statistically. Results The most common etiology of epilepsy was traumatic brain injury(13.64%), followed by hippocampal sclerosis (11.52%), stroke (5.24%), nervous system infection (4.98%), perinatal injury ( 5 . 28 % ) and undefined etiology ( 40 . 80 % ) . The most common seizure type was partial seizures (45.43% ). The AEDs of carbamazepine and valproate were the most common used drugs in the clinical and their average usage frequency were 36.88% and 30.80%, respectively. The newer AEDs of Lamotrigine and Levetiracetam were used more frequently. The use of Lamotrigine increased from 16.16% to 28.44% and the Levetiracetam from 0.61% to 20.87% whereas the use of Oxcarbazepine and Topiramate remained a stable level of 15.07% and 9.42%. Conclusion The etiology of epilepsy is complicated and the seizure type of epilepsy was diverse. Among a great variety of anti-epileptic drugs, the newanti-epileptic drugs are being increasingly used.

Risk factor analysis of EB virus infection after liver transplantation in children with biliary atresia / 天津医药

Objective To determine the prevalence and risk factors of Epstein-Barr virus (EBV) infection after pediatric liver transplantation for patients with biliary atresia. Methods Clinical data of 65 pediatric patients with biliary atresia, who underwent liver transplantation, were retrospectively analyzed. Patients were divided into EBV infection group (n=30) and non-EBV infection group (n=35). The univariate analysis was used to analyse the preoperative, intraoperative and postoperative data of patients included. The variables with a P <0.1 were included in the multivariate Logistic regression analysis of EBV infections after pediatric liver transplantation for patients with biliary atresia. Results A total of 30 cases (46.15%) of pediatric recipients showed EBV infection in 65 cases, of which 23 cases (76.67%) occurred within 3 months after operation. The univariate analysis showed that there were significant differences in the ratio of patients younger than 1 year preoperation, EBV serology D+/R-, acute rejection, the usage of mycophenolate mofetil and supratheraputic tacrolimus level between two groups (P<0.05) . The type of graft (P=0.060), input quantity of red blood cell intraoperation (P=0.063) and factors mentioned above were included in the multivariate Logistic regression analysis. It revealed that donor EBV serology positive but recipient negative, acute rejection and supratheraputic tacrolimus level were risk factors of EBV infection for pediatric liver transplantation recipients with biliary atresia. Conclusion Donor EBV serology positive but recipient negative, acute rejection, supratheraputic tacrolimus level are closely related to EBV infection in pediatric recipients with biliary atresia after liver transplantation. Appropriate antiviral drugs should be adopted to prevent EBV infection in high risk patients.

Magnolol inhibits the inflammatory response in mouse mammary epithelial cells and a mouse mastitis model.

Mastitis comprises an inflammation of the mammary gland, which is almost always linked with bacterial infection. The treatment of mastitis concerns antimicrobial substances, but not very successful. On the other hand, anti-inflammatory therapy with Chinese traditional medicine becomes an effective way for treating mastitis. Magnolol is a polyphenolic binaphthalene compound extracted from the stem bark of Magnolia sp., which has been shown to exert a potential for anti-inflammatory activity. The purpose of this study was to investigate the protective effects of magnolol on inflammation in lipopolysaccharide (LPS)-induced mastitis mouse model in vivo and the mechanism of this protective effects in LPS-stimulated mouse mammary epithelial cells (MMECs) in vitro. The damage of tissues was determined by histopathology and myeloperoxidase (MPO) assay. The expression of pro-inflammatory cytokines was determined by enzyme-linked immunosorbent assay (ELISA). Nuclear factor-kappa B (NF-κB), inhibitory kappa B (IκBα) protein, p38, extracellular signal-regulated kinase (ERK), c-Jun N-terminal kinase (JNK), and Toll-like receptor 4 (TLR4) were determined by Western blot. The results showed that magnolol significantly inhibit the LPS-induced TNF-α, IL-6, and IL-1ß production both in vivo and vitro. Magnolol declined the phosphorylation of IκBα, p65, p38, ERK, and JNK in LPS-stimulated MMECs. Furthermore, magnolol inhibited the expression of TLR4 in LPS-stimulated MMECs. In vivo study, it was also observed that magnolol attenuated the damage of mastitis tissues in the mouse models. These findings demonstrated that magnolol attenuate LPS-stimulated inflammatory response by suppressing TLR4/NF-κB/mitogen-activated protein kinase (MAPK) signaling system. Thereby, magnolol may be a therapeutic agent against mastitis.

The identification of sentinel nodes with Chinese inkin radical resection of cervical carcinoma / 中国基层医药

Objective To explore the value of Chinese ink in identifying sentinel lymph nodes(SLN) during radical resection of cervical carcinoma.Methods After sterilized Chinese ink(1ml) was infused in normal tissue at four points,extensive cervical resection and cleaning operation of pelvic lymph nodes were performed.Lymph nodes staining black in drainage field of pelvic lymph system were investigated.Results Lymph nodes staining black were found in 15 cases.The identifying rate was 100%(15/15).Positive lymph nodes were found in 2 cases with lymph node metastasis.The accurate rate of pelvic lymph nodes metastasis was 100%.Conclusion The effect is reliable by using Chinese ink as tracer of SLNs in cervical carcinoma.

The functional proteome preliminary study of rat arterial smooth muscle cells promoted by homocysteine / 医学研究生学报

Objective:We investigated the changes of the proteins in the rat arterial smooth muscle cells induced by homocysteine.Detected the mechanism by which homocysteinemia leads to atherosclerosis. Methods:The rat arterial smooth muscle cells of primary culture were planned to be the experimental systems.Extracted the proteins from the smooth muscle cells which were induced by homocysteine and control.After 2-D electrophoresis,the map was analyzed by imaging systems. Results:After cells promoted by homocysteine, twenty-eight proteins of the smooth muscle cells changed.Twelve proteins were found to differ in quantity(11 higher and 1 lower).Sixteen proteins were seen to be unique in one region or the others(12 points of protein appear after Hcy stimulating,4 points of protein disapear after Hcy stimulating). Conclusion:The protein of rat arterial muscle cells changed after promoted by homocysteine.We considered that the proteins were related to the proliferation of the smooth muscle cells.

The relationship among serum homocysteine, age, type of coronary heart disease and the branches of coronary arteriopathy / 中华老年医学杂志

Objective To investigate the significance of homocysteine (Hcy) in pathogenesis of coronary heart disease (CHD) and the relationship among serum homocysteine , age, type of CHD and the branches of coronary arteriopathy. Methods In a cross sectional test, serum Hcy levels of 166 old cases (age≥60 years) and 161 non old cases(age

Effect of Lanthanum Subchronic Exposure on Metabolism of Calcium,Magnesium and Iron in Rats / 环境与健康杂志

Objective To investigate the effects of lanthanum(La)subchronic exposure on the metabolism of calcium(Ca),magnesium(Mg)and iron(Fe)in the liver tissue and serum in rats.Methods 36 Wistar rats were treated with lanthanum chloride(LaCl3)through oral exposure at 0.1,2 and 40 mg/kg respectively.After 90 days of treatment,the rats were sacrificed and the La,Ca,Mg and Fe in the liver tissue were determined,the serum was collected for analysis of Ca,phosphorus(P),Mg,Fe,unsaturated iron-binding capacity(UIBC)and total iron binding capacity(TIBC).Results The La levels in the liver tissue in all LaCl3 exposed dose groups rats were higher obviously than those in the control group(P0.05).Conclusion The result suggests that La subchronic exposure may have some effects on the level and distribution of Ca,Mg and Fe in the liver tissue and serum,which may be a part of its biological effects.