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In recent years,the international drug control situation has become increasingly serious.According to the statistical data of the year 2021 from UNODC,in the past decade,the trafficking volume of traditional drug(such as methamphetamine,cannabis and cocaine)has continued to rise,new psychoactive substances(NPS)have emerged one after another,the drugs as well as their precursors and metabolites have become a new group of pollutants.They widely exist in environmental media such as water,air,sludge and soil,due to the manufacture and abuse of drugs,which endangers human and animal safety.Drug detection data from environmental samples can reflect the local drug use situation objectively,real-time,accurately and effectively,which is helpful to grasp the spatial distribution and time changes,monitor the development trends of drug abuse,assess the trend of drug abuse reasonably,and assist in combating related illegal and criminal activities through comprehensive data analysis.At present,sewage monitoring has become an important means of drug monitoring in countries around the world.Sewage testing can assess drug consumption in a place reasonably,and sewage network traceability technology can reduce the scope of regional investigation of drug manufacturing dens effectively,so as to combat accurately.Drug detection in the atmosphere,sludge and soil has been carried out in some foreign countries,but it has not been used as a long-term monitoring means.Long-term monitoring of drugs from the environment in a variety of ways not only helps to effectively update the drug situation in the region,but also to better understand local trends in drug use and identify new drugs of abuse.It will provide data support for more accurate monitoring and combating drug crimes in the future.This paper reviews the methods for detecting drugs and other related compounds in different environmental matrices including sewage,atmosphere and sludge in China and other countries,including the study on the sources and forms of related compounds in different environments,the preparation of different matrix samples and the quantitative analysis of drugs from environment,as well as the existing problems and shortcomings of various detection methods.Finally,the drug detection technology and comprehensive monitoring system in the environment are prospected.
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Objective:To explore the application value of guide tube fenestration and drainage technology in intracranial artery stenting surgery.Methods:A total of 120 patients with symptomatic intracranial atherosclerotic stenosis admitted to the Xingtai Third Hospital from January 2021 to December 2022 were selected and randomly divided into an observation group ( n=60) and a control group ( n=60). Both groups were treated with intracranial artery stenting, with the observation group receiving guidance catheterization and window opening technique during the surgery. Two groups of surgeries were observed and compared: the degree of vascular stenosis before and after surgery, the Montreal Cognitive Assessment Scale (MoCA) scores before and one month after surgery, intraoperative complications, and prognosis. Results:The surgical time and catheter placement time in the observation group were (110.20±23.32)minutes and (11.32±2.01)minutes, respectively, which were significantly shorter than those in the control group (all P<0.05). The stent placement rate and operation success rate in the observation group were 95.00% and 96.67%, respectively, significantly higher than those in the control group (all P<0.05). The degree of postoperative vascular stenosis in the observation group was (32.29±7.11)%, significantly milder than that in the control group [(44.43±8.15)%, P<0.05]. One month after surgery, the MoCA scores of both groups improved significantly compared to before surgery (all P<0.05), and there was no statistically significant difference between the groups ( P>0.05). There was no statistically significant difference in the incidence of collateral circulation occlusion and vascular rupture between the two groups (all P>0.05). During the follow-up period, there was no statistically significant difference in the incidence of restenosis, intracranial hemorrhage, and recurrent ischemic stroke between the observation group and the control group (all P>0.05); The good prognosis rate of the observation group was 73.33%, significantly higher than that of the control group (53.33%, P<0.05). Conclusions:The application of guided catheter fenestration technique in intracranial artery stenting has good value, which is beneficial for improving the stent placement rate and operation success rate, and improving the degree of vascular stenosis.
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ObjectiveTo investigate the mechanism of Xiaonang Tiaojing decoction（XNTJD）in improving polycystic ovary syndrome with insulin resistance（PCOS-IR）model rats based on anti-Müllerian hormone（AMH）/AMH type Ⅱ receptor（AMHRⅡ）signaling pathway. MethodForty-eight adult female SD rats were randomly divided into the blank group， model group， XNTJD group（11.4 g·kg-1·d-1） and Diane-35 group（0.21 g·kg-1·d-1）， PCOS-IR model was established by high-fat and high-sugar diet combined with letrozole in rats of all groups except the blank group， rats in the administration groups were given the corresponding dose of drugs by gavage for 15 days with an interval of 1 d every 4 d， normal saline of the same volume was given to the blank group and the model group. Estrous cycle was recorded daily during treatment. At the end of treatment， body weight and Lee's index were recorded， AMH， luteinizing hormone（LH）， LH/follicle stimulating hormone（FSH）， testosterone（T）and estradiol（E2）levels were measured by enzyme-linked immunosorbent assay（ELISA）， fasting plasma glucose（FPG）was measured by glucometer， fasting insulin（FINS） level was measured by radioimmunoassay（RIA）， and the insulin resistance index（HOMA-IR） and insulin sensitivity index（QUICKI）were calculated， triglyceride（TG）and total cholesterol（TC）levels were measured by automatic biochemical analyzer， hematoxylin-eosin（HE）staining was used to observe the morphological changes of the ovary， the levels of AMHRⅡ， bone morphogenetic protein-15（BMP-15）and Smad5 in ovarian tissues were detected by immunohistochemistry（IHC），Western blot was used to analyze the protein expression levels of AMHRⅡ， BMP-15 and Smad5. ResultCompared with the blank group， a large number of leukocytes were observed in the vaginal exfoliated cells of rats in the model group， mainly in diestrus， the levels of body weight， Lee's index， glucose-lipid metabolism indexes（FPG， FINS， HOMA-IR， TG， TC）， AMH and sex hormones（LH， LH/FSH， T）were significantly increased（P<0.01）， and QUICKI and E2 levels were significantly decreased（P<0.01）， there were more cystic bulges on the ovarian surface， more wet weight， more atretic and cystic dilated follicles in the ovarian tissues， and the thickness of granulosa cell layer was reduced without oocytes， the expression level of AMHRⅡ protein in ovarian tissues was significantly increased（P<0.01）， and the expression levels of BMP-15 and Smad5 proteins were significantly decreased（P<0.01）. Compared with the model group， the exfoliated cells in the vagina of rats treated with XNTJD group showed keratinocytes from the 5th to 6th day of treatment， and a stable estrous cycle gradually appeared， body weight， Lee's index， glucose-lipid metabolism indexes（FPG， FINS， HOMA-IR， TG， TC）， AMH and sex hormones（LH， LH/FSH， T）levels were significantly decreased（P<0.05， P<0.01）， QUICKI and E2 levels were significantly increased（P<0.01）， ovarian surface was smoother and lighter in wet weight， oocytes and mature follicles were observed in ovarian tissues， the thickness of granulosa cell layer increased and the morphology was intact， the expression levels of BMP-15 and Smad5 proteins were significantly increased（P<0.01）and the expression level of AMHRⅡ protein was significantly decreased（P<0.01）in ovarian tissues. ConclusionXNTJD may mediate the up-regulation of BMP-15 and Smad5 in ovarian tissues of PCOS-IR rats by down-regulating AMH/AMHRⅡ， thereby improving ovarian function， sex hormones and glucose-lipid metabolism levels in PCOS-IR rats.
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The increasing prevalence of the aging population, and inadequate and uneven distribution of medical resources, have led to a growing demand for telemedicine services. Gait disturbance is a primary symptom of neurological disorders such as Parkinson's disease (PD). This study proposed a novel approach for the quantitative assessment and analysis of gait disturbance from two-dimensional (2D) videos captured using smartphones. The approach used a convolutional pose machine to extract human body joints and a gait phase segmentation algorithm based on node motion characteristics to identify the gait phase. Moreover, it extracted features of the upper and lower limbs. A height ratio-based spatial feature extraction method was proposed that effectively captures spatial information. The proposed method underwent validation via error analysis, correction compensation, and accuracy verification using the motion capture system. Specifically, the proposed method achieved an extracted step length error of less than 3 cm. The proposed method underwent clinical validation, recruiting 64 patients with Parkinson's disease and 46 healthy controls of the same age group. Various gait indicators were statistically analyzed using three classic classification methods, with the random forest method achieving a classification accuracy of 91%. This method provides an objective, convenient, and intelligent solution for telemedicine focused on movement disorders in neurological diseases.
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Humans , Aged , Parkinson Disease/diagnosis , Aging , Algorithms , Gait , Lower ExtremityABSTRACT
Objective:To explore the application of on-demand teaching in the teaching of newly recruited nurses in the Class-A tertiary hospital.Methods:A total of 84 newly recruited nurses from Beijing Shijitan Hospital Affiliated to Capital Medical University from August 2017 to August 2018 were selected as the control group, and routine teaching was used. In addition, 116 new nurses from August 2019 to August 2020 were selected as the observation group, and on-demand teaching was adopted. The results of theory and practical operation, comprehensive ability and teaching satisfaction of the two groups were compared. The software SPSS 22.0 was used for t-test. Results:The nurses in the observation group had higher scores than the control group in theory [(96.38±2.14) vs. (91.56±3.75)] and practice [(95.49±2.23) vs. (90.91±4.02)]. The scores of nurses in the observation group were higher than those in the control group in accurate implementation of doctor's orders, emergency response ability, ability to observe illness, operation level, communication ability, professional image of nurses, cooperation satisfaction with doctors and harmony with nurses ( P<0.05). The nurses in the observation group scored higher than those in the control group in teaching content, teaching method, teaching attitude, and teaching effect satisfaction ( P<0.05). Conclusion:The application of on-demand teaching in the teaching of newly recruited nurses in the Class-A tertiary hospital can significantly improve their theoretical and practical skills, and improve their comprehensive ability and teaching satisfaction.
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Objective:To explore the characteristics, clinical manifestations and gene mutation types of Cornelia de Lange syndrome (CdLs), and to improve the understanding of the disease.Methods:Clinical data and gene test results of a pediatric case of CdLs diagnosed in the First Affiliated Hospital of Xinxiang Medical University in August 2019 were analyzed retrospectively.Results:A female patient with 2 years and 8 months old presented a special appearance with a low and flat nose, a wide eye distance, audition ears, a downward inclination of the mouth corner, a high arch of the jaw and a small jaw deformity, who had recurrent seizures, speech and mental retardation.The result of gene test showed the mutation of SMC1A gene c. 2923C > T, and thus the patient was diagnosed as type 2 CdLs. Conclusions:CdLs is a rare genetic metabolic disease with special facial features and physical signs.There is only one case of CdLs with gene mutation of SMC1A in China through literature review.The mutation of SMC1A gene c. 2923C>T in CdLs cases has not been reported at home and abroad, which expands the variation spectrum of the SMC1A gene.
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Background: The coronavirus disease 2019 (COVID-19) had become a health care event endangering humans globally. It takes up a large number of healthcare resources. We studied the impact of COVID-19 on patients with ovarian cancer by comprehensively analyzing their admissions before and after the epidemic, and made reasonable suggestions to improve their current situation. Methods: We randomly divided the enrolled patients into three groups, PreCOVID-19 Group (PCG) (2019.8.20-2020.1.20), COVID-19 Group (CG) (2020.1.21-2020.6.14), and Secondary Outbreak COVID-19 Group (SOCG) (2020.6.15-2020.10.10). One-way ANOVA and chi-square test were used for analysis. Results: The number of patients from other provinces decreased significantly (p < 0.05). The total hospital stay during the epidemic was substantially more extended (p < 0.05). Before the epidemic, our department performed more open surgery while during the epidemic outbreak, we tended to choose laparoscopy (p < 0.01). We took a longer surgery time (P < 0.05). Patients had significantly less post-operative fever during the epidemic (p < 0.001). Conclusion: During the COVID-19 epidemic, no patient was infected with COVID-19, and no patient experienced severe post-operative complications. We recommend maintaining the admissions of patients with ovarian cancer during the epidemic following the rules: 1. The outpatients must complete a nucleic acid test and chest CT in the outpatient clinic; 2. Maintain full daily disinfection of the ward and insist that health care workers disinfect their hands after contact with patients; 3. Increase the use of minimally invasive procedures, including laparoscopy and robotics; 4. Disinfect the ward twice a day with UV light and sodium hypochlorite disinfectant; 5. Patients need to undergo at least three nucleic acid tests before entering the operating room.
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The Omicron variant of SARS-CoV-2 has rapidly become the dominant infective strain and the focus efforts against the ongoing COVID-19 pandemic. Here we report an extensive set of structures of the Omicron spike trimer by its own or in complex with ACE2 and an anti-Omicron antibody. These structures reveal that most Omicron mutations are located on the surface of the spike protein, which confer stronger ACE2 binding by nearly 10 folds but become inactive epitopes resistant to many therapeutic antibodies. Importantly, both RBD and the closed conformation of the Omicron spike trimer are thermodynamically unstable, with the melting temperature of the Omicron RBD decreased by as much as 7{degrees}C, making the spiker trimer prone to random open conformations. An unusual RBD-RBD interaction in the ACE2-spike complex unique to Omicron is observed to support the open conformation and ACE2 binding, serving the basis for the higher infectivity of Omicron. A broad-spectrum therapeutic antibody JMB2002, which has completed Phase 1 clinical trial, is found to interact with the same two RBDs to inhibit ACE2 binding, in a mode that is distinguished from all previous antibodies, thus providing the structural basis for the potent inhibition of Omicron by this antibody. Together with biochemical data, our structures provide crucial insights into higher infectivity, antibody evasion and inhibition of Omicron.
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Sexual health is an important part of the overall health of patients.The ability of nurses to carry out sexual health care directly affects the overall level of medical care. This article reviews the concepts of sexual health and sexual health care, the evaluation tools of sexual health care, the practical models and influencing factors of nurses' sexual health care, with a view to providing a reference for improving the practice level of nurses carrying out sexual health care.
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N 6-methyladenosine (m 6A) methylation modification is defined as the methylation at the N 6 position of adenosine. This dynamic process is regulated by writer, eraser and reader. Accumulating evidence indicates that m 6A methylation modification is involved in the initiation and development of various digestive system neoplasms including proliferation, invasion, metastasis and chemoresistance. A further understanding about the role of m 6A methylation modification in digestive system neoplasms will benefit the development of a novel precise diagnostic and therapeutic strategy and finally improve the overall prognosis of patients.
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Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has caused the pandemic of coronavirus disease 2019 (COVID-19). Great international efforts have been put into the development of prophylactic vaccines and neutralizing antibodies. However, the knowledge about the B cell immune response induced by the SARS-CoV-2 virus is still limited. Here, we report a comprehensive characterization of the dynamics of immunoglobin heavy chain (IGH) repertoire in COVID-19 patients. By using next-generation sequencing technology, we examined the temporal changes in the landscape of the patients immunological status, and found dramatic changes in the IGH within the patients immune system after the onset of COVID-19 symptoms. Although different patients have distinct immune responses to SARS-CoV-2 infection, by employing clonotype overlap, lineage expansion and clonotype network analyses, we observed a higher clonotype overlap and substantial lineage expansion of B cell clones during 2-3 weeks of illness, which is of great importance to B-cell immune responses. Meanwhile, for preferences of V gene usage during SARS-CoV-2 infection, IGHV3-74 and IGHV4-34 and IGHV4-39 in COVID-19 patients were more abundant than that of healthy controls. Overall, we present an immunological resource for SARS-CoV-2 that could promote both therapeutic development as well as mechanistic research.
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Severe acute respiratory syndrome CoV-2 (SARS-CoV-2) caused the Corona Virus Disease 2019 (COVID-19) cases in China has become a public health emergency of international concern (PHEIC). Based on angiotensin converting enzyme 2 (ACE2) as cell entry receptor of SARS-CoV, we used the hACE2 transgenic mice infected with SARS-CoV-2 to study the pathogenicity of the virus. Weight loss and virus replication in lung were observed in hACE2 mice infected with SARS-CoV-2. The typical histopathology was interstitial pneumonia with infiltration of significant lymphocytes and monocytes in alveolar interstitium, and accumulation of macrophages in alveolar cavities. Viral antigens were observed in the bronchial epithelial cells, alveolar macrophages and alveolar epithelia. The phenomenon was not found in wild type mice with SARS-CoV-2 infection. The pathogenicity of SARS-CoV-2 in hACE2 mice was clarified and the Kochs postulates were fulfilled as well, and the mouse model may facilitate the development of therapeutics and vaccines against SARS-CoV-2.
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Objective:To compare the preliminary clinical effect of mitral valve replacement and mitral valvuloplasty on hypertrophic obstructive cardiomyopathy with mitral regurgitation.Methods:From January 2010 to December 2013, the patients undergoing cardiac surgery at Bakulev Cardiovascular Surgery Research Center in Russia were randomly divided into two groups: Forty-one patients received left ventricular outflow tract hypertrophy myocardial resection (Morrow operation) combined with mitral valve replacement (MVR) as MVR group; Forty-seven patients received Morrow surgery combined with mitral valve repair (MVr) as MVr group.The primary end point: death, secondary end point: thrombosis complications (cerebral infarction, peripheral arterial embolism), recurrence of mitral regurgitation and left ventricular outflow tract pressure difference were compared between the two groups.Results:In the MVr group, 6 cases were converted to MVR and were excluded from the study.The survival rates of MVR group and MVR group were 78.9% and 96.6%, respectively , and the thromboembolic free survival rates of MVR group and MVr group were 83.2% and 100%, respectively. The differences were statistically significant( P=0.034, 0.026, respectively). There was no significant difference in mitral regurgitation and left ventricular outflow tract pressure difference between MVR group and MVR group 24 months after operation( P=1.000, 0.934, respectively). Conclusion:Operation combined with MVR or MVr is an effective method to relieve left ventricular outflow tract obstruction and mitral regurgitation. Morrow operation combined with MVr can improve survival rate and reduce thrombosis complications.
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Objective To investigate the posttraumatic growth and emotional regulation strategies of patients with moderate and severe burns at different time points in the rehabilitation period, and to explore the correlation between posttraumatic growth and emotional regulation strategies, so as to provide a basis for targeted nursing intervention. Methods By convenience sampling method, 115 convalescent patients with moderate and severe burns in Linyi People′s Hospital burn plastic surgery center were investigated by General Information Questionnaire, Chinese Posttraumatic Growth Inventory (C-PTGI), Emotion Regulation Scale (ERQ) respectively on the day of discharge (T1), 3 months and 6 months after hospital discharge (T2, T3) from December 2017 to January 2019. Results The post-traumatic growth scores of patients T1, T2 and T3 were 58.18±9.51, 48.65±9.31 and 47.43±8.76, respectively. The post-traumatic growth scores showed a downward trend at three time points, and the difference was statistically significant (F=339.732,P<0.01). The scores of T1, T2 and T3 in the cognitive reassessment dimensions of patients′emotion regulation strategies were respectively 27.10±4.13, 26.95±3.76, 26.11±3.60. The scores are going down and the differences were statistically significant (F=27.798, P<0.01). The expression inhibition scores were 14.42±4.39, 15.20±3.30, 15.21±3.56 respectively. The scores are the rise and the differences were statistically significant (F=13.675, P < 0.01). There were positive correlations between cognitive reassessment scores and posttraumatic growth scores、scores of all dimensions (r=0.230-0.555, P<0.05). The expression inhibition scores were negatively correlated with the total post-traumatic growth scores, personal strength, and scores of new possibility dimensions (r=- 0.230-- 0.420, P<0.05). Conclusion Posttraumatic growth of patients with moderate to severe burns is not optimistic in the rehabilitation period. Therefore, it is necessary to pay attention to the guidance of emotional regulation strategies for patients with moderate to severe burns in the rehabilitation period, and carry out targeted interventions to promote the posttraumatic growth of patients.
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Mitochondrial dysfunctions play major roles in ageing. How mitochondrial stresses invoke downstream responses and how specificity of the signaling is achieved, however, remains unclear. We have previously discovered that the RNA component of Telomerase TERC is imported into mitochondria, processed to a shorter form TERC-53, and then exported back to the cytosol. Cytosolic TERC-53 levels respond to mitochondrial functions, but have no direct effect on these functions, suggesting that cytosolic TERC-53 functions downstream of mitochondria as a signal of mitochondrial functions. Here, we show that cytosolic TERC-53 plays a regulatory role on cellular senescence and is involved in cognition decline in 10 months old mice, independent of its telomerase function. Manipulation of cytosolic TERC-53 levels affects cellular senescence and cognition decline in 10 months old mouse hippocampi without affecting telomerase activity, and most importantly, affects cellular senescence in terc cells. These findings uncover a senescence-related regulatory pathway with a non-coding RNA as the signal in mammals.
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Objective@#To investigate the posttraumatic growth and emotional regulation strategies of patients with moderate and severe burns at different time points in the rehabilitation period, and to explore the correlation between posttraumatic growth and emotional regulation strategies, so as to provide a basis for targeted nursing intervention.@*Methods@#By convenience sampling method, 115 convalescent patients with moderate and severe burns in Linyi People′s Hospital burn plastic surgery center were investigated by General Information Questionnaire, Chinese Posttraumatic Growth Inventory (C-PTGI), Emotion Regulation Scale (ERQ) respectively on the day of discharge (T1), 3 months and 6 months after hospital discharge (T2, T3) from December 2017 to January 2019.@*Results@#The post-traumatic growth scores of patients T1, T2 and T3 were 58.18±9.51, 48.65±9.31 and 47.43±8.76, respectively. The post-traumatic growth scores showed a downward trend at three time points, and the difference was statistically significant (F=339.732,P<0.01). The scores of T1, T2 and T3 in the cognitive reassessment dimensions of patients′emotion regulation strategies were respectively 27.10±4.13, 26.95±3.76, 26.11±3.60. The scores are going down and the differences were statistically significant (F=27.798, P<0.01). The expression inhibition scores were 14.42±4.39, 15.20±3.30, 15.21±3.56 respectively. The scores are the rise and the differences were statistically significant (F=13.675, P < 0.01). There were positive correlations between cognitive reassessment scores and posttraumatic growth scores、scores of all dimensions (r=0.230-0.555, P<0.05). The expression inhibition scores were negatively correlated with the total post-traumatic growth scores, personal strength, and scores of new possibility dimensions (r=-0.230--0.420, P<0.05).@*Conclusion@#Posttraumatic growth of patients with moderate to severe burns is not optimistic in the rehabilitation period. Therefore, it is necessary to pay attention to the guidance of emotional regulation strategies for patients with moderate to severe burns in the rehabilitation period, and carry out targeted interventions to promote the posttraumatic growth of patients.
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Objective To examine the impact of liver cancer patients′ depression, anxiety, psychological distress on demoralization. Methods A cross-sectional survey was conducted among 116 liver cancer patients using Demoralization Scale-Mandarin Version, Patient Health Questionnaire-9, Generalized Anxiety Disorder-7, Herth Hope Index, Distress Thermometer. Results The average score of demoralization was 33.22 ± 14.85. Analysis of variance showed that the demoralization syndrome′s difference caused by degree of working state, monthly incomewas significant(F=3.795-4.147, P<0.05), correlation analysis showed that patients′demoralization was positively correlated with depression,anxiety, psychological pain,the problems encountered,and negatively correlated with the level of hope(r=0.344-0.601, P<0.01). Multiple regression analysis indicated that working state,depression and hope level explained 50.0％ of the total variance of liver cancer patients′ demoralization. Conclusions Patients with liver cancer have higher levels of demoralization, psycho-physiological symptom can predict it, and the nurses should pay more attention to patients with demoralization.
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Transitional care refers to carrying out related health care services to make discharged patients′nursing activities orderly, coordinated and continuous, so as to meet their various rehabilitation needs. In recent years, it has become a research focus of breast cancer discharged patients. This article reviews the concept of continuous care and its practice and effect in discharged patients with breast cancer, and provides evidence for further improvement of breast cancer patients′continuity of care in China.
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Objective To explore the effect of social relationship quality intervention on blood pressure and mental state of patients after hypertensive hemorrhage. Methods From November 2014 to March 2016,48 patients with hypertensive intracerebral hemorrhage were assigned as control group and another 48 patients with the same disease in our hospitalfrom April 2016 to August 2017 as observation group:The former received routine nursing care and the latter was treated with social relationship quality intervention plus the routine nursing care.The blood pressure and mental states before intervention were compared with those 1 month after intervention. Result After intervention,the systolic and diastolic blood pressures in the observation group were significantly lower than those in the control group,and the scores on resilience,optimism and strength were all significantly higher than those in the control group (P<0.01, P<0.001). Conclusions The social relationship quality intervention is effective in the care to patients with hypertensive cerebral hemorrhage. It can effectively improve the clinical efficacy, reduce blood pressure and improve mental state, worthy of clinical application and promotion.
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Objective To systematically review the effect of enteral nutrition via a naso-gastric (intestinal) tube (NG) vs a percutaneous endoscopic gastrostomy/jejunostomy (PEG/PEJ) after liver transplantation,and provide support for the selection of proper nutrition.Methods Pub Med,web of science,Cochrane Library (Jan,2018),CNKI,VIP and Wanfang Date were search until Jan,2018.Two authors independently assessed the trials for inclusion and extracted the data.Discrepancies were resolved in consultation with a third reviewer,about the research of retrospective study for the effects of enteral nutrition via NG vs PEG/PEJ after liver transplantation was performed and supplemented.Publication bias were evaluated,and Meta-analyses were conducted with RevMan5.3.Results 4 studies were collected,involving 430 patients.The Meta-analysis showed that starting time of enteral nutrition of PEG/PEJ was earlier than NG (MD =-1.77,95％ CI-1.83 to-1.70,P＜0.05).The average hospitalization time of PEG/PEJ was shorter than NG (MD=-2.88,95％CI-5.19 to-0.56,P＜0.05).The diarrhea incidence of PEG/PEJ was higher than NG (OR=1.66,95％CI 1.04 to 2.65,P＜0.05),and gastroesophageal reflux incidence of PEG/PEJ was lower than NG (OR=0.29,95％CI 0.12 to 0.66,P＜0.05).The gastric retention rate of PEG/PEJ was lower than NG (OR =0.26,95％ CI 0.14 to 0.41,P＜0.05).Dislocation incidence of PEG/PEJ was lower than NG (OR =0.06,95％CI 0.01 to 0.46,P＜0.05).The pneumonia incidence of PEG/PEJ tube was lower than NG (OR=0.59,95％CI 0.36 to 0.99,P＜0.05).There were no significant differences between PEG/PEJ and NG on indwelling time,occlusion,abdominal infection,acute renal insufficiency,and acute rejection reaction.Conclusion PEG/PEJ had earlier starting time of enteral nutrition,shorter hospitalization time,lower nutrition tube placement related complications such as gastric esophagus reflux,gastric retention,dislocation rate and lower incidence of pneumonia,but the incidence of diarrhea was higher.NG is the first choice after liver transplantation,and for patients with serious basic diseases,weak digestive function or digestive system disorders PEG/PEJ can be chosen.