A clinical analysis of pericardial effusion caused by central venous catheterization in preterm infants / 中国当代儿科杂志

OBJECTIVE@#To study the clinical features of pericardial effusion caused by central venous catheterization in preterm infants.@*METHODS@#A retrospective analysis was performed on 11 preterm infants with pericardial effusion caused by central venous catheterization. Their catheterization features, manifestations, treatment, and prognosis were analyzed.@*RESULTS@#A total of 11 preterm infants (11/2 599, 0.42%) developed pericardial effusion, with a mean gestational age of (30.1±2.6) weeks and a mean birth weight of (1 240±234) g. Pericardial effusion mostly occurred within 4 days after central venous catheterization (10 cases, 91%). The main manifestations included poor response (6/11, 55%), cyanosis (5/11, 45%), increased respiratory rate (6/11, 55%), increased heart rate (6/11, 55%), aggravated dyspnea (5/11, 45%), and muffled heart sound (5/11, 45%). At the time of disease progression, 7 preterm infants (64%) had a deep position of the end of the catheter, 3 preterm infants (27%) had a correct position, and 1 preterm infant (9%) had a shallow position. Five preterm infants (45%) experienced cardiac tamponade, among whom 4 underwent pericardiocentesis. Seven preterm infants were given conservative medical treatment. Among the 11 children, 2 (18%) died and 9 (82%) improved.@*CONCLUSIONS@#Pericardial effusion caused by central venous catheterization mostly occurs in the early stage of catheterization and has critical clinical manifestations. Pericardiocentesis is required for cardiac tamponade, and early diagnosis and intervention can effectively improve prognosis.

Study on the differences between moxibustion at different points in the effects on the anti-fatigue ability of rats undergoing one-time exhaustive swimming / 针灸推拿医学（英文版）

Objective: To observe the effects of moxibustion at Shenshu (BL 23), Zusanli (ST 36) and Shenque (CV 8) on the energy metabolism and endocrine metabolism indicators of rats undergoing one-time exhaustive swimming, and to explore the differences between moxibustion at different points in the effects on anti-exercise fatigue. Methods: Forty-eight male SPF rats were randomly divided into a blank group, a model group, a non-meridian and non-acupoint group, a Shenshu (BL 23) group, a Zusanli (ST 36) group, and a Shenque (CV 8) group using random number table method, with eight rats in each group. Except for the blank group, rats in the other groups were subjected to replicating the one-time exhaustive model using the weight-bearing swimming experiment. Except for the model group, the other model rats received mild moxibustion immediately after swimming. Rats in the non-meridian and non-acupoint group received mild moxibustion at bilateral subcostal non-meridian and non-acupoint points, those in the Shenshu (BL 23) group received mild moxibustion at bilateral Shenshu (BL 23), those in the Zusanli (ST 36) group received mild moxibustion at bilateral Zusanli (ST 36), and those in the Shenque (CV 8) group received mild moxibustion at Shenque (CV 8) for 15 min. Four hours after the exhaustive swimming, femoral artery blood was collected to detect blood lactate (BLA), lactate dehydrogenase (LDH), creatine kinase (CK), creatinine (CRE), blood urea nitrogen (BUN), cortisol (C) and testosterone (T) levels, and calculate the T/C ratio. Results: Compared with the blank group, rat's serum levels of BLA, LDH, CK, BUN and C in the model group and the non-meridian and non-acupoint group were increased, and serum levels of CRE and T, and T/C ratios were decreased (P<0.01 or P<0.05); compared with the model group and the non-meridian and non-acupoint group, the serum levels of BLA, LDH, CK, BUN and C in the Shenshu (BL 23) group, Zusanli (ST 36) group and Shenque (CV 8) group were decreased, and the serum CRE and T levels, and the T/C ratios were increased (all P<0.01); compared with the Shenshu (BL 23) group, the serum CK level was decreased in the Shenque (CV 8) group (P<0.01), the serum levels of T and C were decreased in the Zusanli (ST 36) group and Shenque (CV 8) group (P<0.01 or P<0.05), and the T/C ratio was increased in the Shenque (CV 8) group (P<0.01); compared with the Zusanli (ST 36) group, the serum CK and BUN levels were decreased (P<0.01, P<0.05), and the T/C ratio was increased in the Shenque (CV 8) group (P<0.05). Conclusion: Moxibustion at Shenshu (BL 23), Zusanli (ST 36) and Shenque (CV 8) shows different anti-fatigue effects by regulating the energy metabolism and endocrine metabolism in rats undergoing one-time exhaustive swimming. Moxibustion at Shenshu (BL 23) is better in promoting energy synthesis. Moxibustion at Shenque (CV 8) is more effective in regulating synthesis and decomposition of the skeletal muscle proteins.

Effect of moxibustion at Shenque (CV 8) on immune system in rats with different degrees of exhaustive exercise / 针灸推拿医学（英文版）

Objective:To investigate the effect of moxibustion at Shenque (CV 8) on the immune system in rats with different levels of exhaustive exercise.Methods:Fifty-six male Sprague-Dawley (SD) rats were randomly divided into a blank group (n=8),an exhaustive group (n=24),and a moxibustion group (n=24).The exhaustive group was randomly divided into a 1-time exhaustive group,a 4-time exhaustive group and a 7-time exhaustive group,with 8 rats in each group.According to the treatment time,the moxibustion group was randomly divided into a 1-time moxibustion group,a 4-time moxibustion group and a 7-time moxibustion group,with 8 rats in each group.Rats in the exhaustive groups and the moxibustion groups were subjected to replicating the exhaustive swimming models.Rats in each moxibustion group received mild moxibustion for 15 min immediately after the exhaustive modeling,once every other day.Twenty-four hours after the corresponding exhaustive exercise,the rats in each group were tested for the levels of serum immunoglobulin (Ig) G,IgA,IgM and acid phosphatase (ACP),and the morphological changes of spleen tissues were observed.The level of IgA was detected by immunoturbidimetric assay,and the levels of IgG,IgM and ACP were detected by enzyme-linked immunosorbent assay (ELISA).Results:Compared with the 1-time exhaustive group,swimming time of rats in the 4-time exhaustive group was significantly prolonged (P＜0.01),and swimming time of rats in the 7-time exhaustive group was significantly shortened (P＜0.01).Compared with the 7-time exhaustive group,exhaustive swimming time of rats in the 7-time moxibustion group was significantly prolonged (P＜0.01).Compared with the blank group,the IgG level in the 1-time exhaustive group was significantly decreased (P＜0.01),and the levels of IgG,IgA and IgM in the 4-time exhaustive group and the 7-time exhaustive group were all significantly decreased (P＜0.05 or P＜0.01),while the ACP level was increased significantly (both P＜0.01).Microscopically,the number of splenic corpuscles in the 1-time exhaustive group was reduced;the center of some splenic corpuscles in the 4-time exhaustive group was damaged;the number of splenic corpuscles in the 7-time exhaustive group was reduced,and there was no obvious germinal center.Compared with the 4-time exhaustive group,the IgA level in the 4-time moxibustion group was significantly increased (P＜0.01),and the ACP level was significantly decreased (P＜0.01).Compared with the 7-time exhaustive group,the levels of IgG,IgA and IgM in the 7-time moxibustion group were significantly increased (all P＜0.01),and the ACP level was significantly decreased (P＜0.01).Microscopically,the number of splenic corpuscles in the 1-time moxibustion group was reduced;the center of some splenic corpuscles in the 4-time moxibustion group was damaged together with hyperplasia of some splenic corpuscles;blast cells were proliferated in the center of some splenic corpuscles in the 7-time moxibustion group.Conclusion:Moxibustion at Shenque (CV 8) can improve the levels of igG,igA and igM,reduce the ACP level,repair damaged spleen tissues,and enhance the immunity of the body to some extent in the long-term fatigue rats.

Sophora alopecuroides ameliorates large intestine dampness-heat syndrome in rats by serum metabolomic approach based on UHPLC-Q/TOF-MS/MS / 药学学报

The Chinese herbal Sophora alopecuroides is widely used to clean intestine and eliminate dampness, and it has good therapeutic effects on treating bacillary dysentery and inflammatory bowel disease, etc. in clinics. However, the mechanism of treatment is not yet well understood. The present study was aimed to explore the mechanism of Sophora alopecuroides treatment of large intestine dampness-heat syndrome (LIDHS). The LIDHS model was performed by the comprehensive factors, including high temperature and humidity environment, high-sugar and high-fat diet, and intraperitoneal injection of Escherichia coli. The blood routine, serum proinflammatory cytokine levels and histopathological changes of intestine were detected and observed. Meanwhile, the serum metabolomic approach was conducted using the method of ultra performance liquid chromatography coupled to quadrupole time-of-flight mass/mass spectrometry (UHPLC-Q/TOF-MS/MS). The results showed that Sophora alopecuroides has good therapeutic effects on the LIDHS rat models. After treatment with Sophora alopecuroides, the abnormality of blood routine indexes as well as proinflammatory cytokines, including IL-1β, IL-2, IL-6 and TNF-α in vivo, tended to be normal, and the histopathological changes of intestine were improved. Through metabolic profiling and protocol analysis, 9 potential metabolic markers may be closely related with the treatment mechanism of Sophora alopecuroides on this disease, including taurine, L-tryptophan, LysoPE, LysoPC, LPA, DG, chenodeoxycholic acid disulfate, traumatic acid and 7-ketodeoxycholic acid, which were involved in taurine and hypotaurine metabolism, glycerophospholipid metabolism, glycerolipid metabolism, tryptophan metabolism and primary bile acid biosynthesis etc. The serum metabolomic approach can be applied to clarify the therapeutic mechanism of Sophora alopecuroides on LIDHS, and provide the theoretical basis for Sophora alopecuroides in clinical practice.

Evaluating the Nutritional Status of Oncology Patients and Its Association with Quality of Life / 生物医学与环境科学（英文）

<p><b>OBJECTIVE</b>The primary aim of the study was to compare two nutritional status evaluation tools: the Patient-Generated Subjective Global Assessment (PG-SGA) and Nutritional Risk Screening (NRS-2002). Using the European Organization for Research and Treatment of Cancer Quality of Life Core Questionnaire 30 (EORTC QLQ-C30), the second aim was to provide constructive advice regarding the quality of life of patients with malignancy.</p><p><b>METHODS</b>This study enrolled 312 oncology patients and assessed their nutritional status and quality of life using the PG-SGA, NRS-2002, and EORTC QLQ-C30.</p><p><b>RESULTS</b>The data indicate that 6% of the cancer patients were well nourished. The SGA-A had a higher sensitivity (93.73%) but a poorer specificity (2.30%) than the NRS-2002 (69.30% and 25.00%, respectively) after comparison with albumin. There was a low negative correlation and a high similarity between the PG-SGA and NRS-2002 for evaluating nutritional status, and there was a significant difference in the median PG-SGA scores for each of the SGA classifications (P < 0.001). The SGA-C group showed the highest PG-SGA scores and lowest body mass index. The majority of the target population received 2 points for each item in our 11-item questionnaire from the EORTC QLQ-C30.</p><p><b>CONCLUSION</b>The data indicate that the PG-SGA is more useful and suitable for evaluating nutritional status than the NRS-2002. Additionally, early nutrition monitoring can prevent malnutrition and improve the quality of life of cancer patients.</p>

Balloon Angioplasty as a Modality to Treat Children with Pulmonary Stenosis Secondary to Complex Congenital Heart Diseases / 中华医学杂志(英文版)

<p><b>BACKGROUND</b>Pulmonary stenosis is common in children with complex congenital heart diseases. Proper management of this problem, especially postoperatively, is still controversial. This study was designed to assess the rate and determinants of success or failure of balloon angioplasty for such lesions.</p><p><b>METHODS</b>Clinical and hemodynamic data from 40 pediatric patients (24 boys and 16 girls) with complex congenital heart diseases who underwent balloon angioplasty were reviewed retrospectively from January 2012 to December 2016. Patients were divided into four groups according to the site of stenosis, which included pulmonary valve stenosis (PVS), valved conduit stenosis, pulmonary artery stenosis (PAS), and supravalvular pulmonary stenosis (SVPS). Success rates were calculated according to defined criteria for initial success and favorable clinical impacts, and comparison between the successful subgroup and the unsuccessful subgroups was analyzed.</p><p><b>RESULTS</b>Grouped by the site of stenosis, initial success rates varied from 40.0% to 52.4% with the greatest success being seen in the PVS group, followed by the PAS group and SVPS group. In the PVS group and the PAS group, there was no statistical difference among age at dilation, postoperative interval, balloon/stenosis ratio, or pressure gradient predilation between the successful and the unsuccessful subgroups. Favorable clinical impacts included success rates of balloon angioplasty in the SVPS group, which was best (100%), followed by the PVS group (90.9%) and the PAS group (85.7%). There were a total of two transient complications (5.0%).</p><p><b>CONCLUSIONS</b>Balloon angioplasty was proven to be a safe and useful modality in children with complex congenital heart diseases and postoperative pulmonary stenosis, which should be the initial therapeutic modality in selected patients.</p>

Comparison of the regulation of pediatric drugs research and development at home and abroad / 国际药学研究杂志

The problem of pediatric drugs has been the challenges facing the world. The two most important issues are the lack of appropriate drug dosage forms for children and the safety and effectiveness data of drug use in children. How to encourage production enterprises to produce drug varieties, specifications and dosage forms suitable for children use, guide drug manufacturers to obtain drug use data are the most important work for pediatric drugs.Based on the literature home and abroad, we analyze the regulatory policies for the research and development(RD) and application of pediatric drugs in the USA, EU and Japan, which have made great efforts to encourage enterprises to conduct pediatric research. Their successful experiences are summarized and can be used as reference for the establishment of the policies adaptive to the situation of China for the RD of pediatric drugs.

Preparation and quality assessment of glycyrrhetinic acid-chitosan nanoparticles / 中草药

Objective: To study the optimal preparation process of glycyrrhetinic acid-chitosan nanoparticles (GA-CS-NPs) and to evaluate the quality. Methods: The GA-CS-NPs were prepared by ionic cross-linking. The particle size, drug loading, and encapsulation efficiency were as evaluation indexes. The prescription and preparation process were optimized through single factor and orthogonal design. The quality of GA-CS-NPs was evaluated by morphology, particle size, drug loading, and encapsulation efficiency. Results: The optimal prescription was as follows: concentration of GA and CS was 0.2 and 2 mg/mL, ratio of CS and TPP (1.0 mg/mL) solutions was 20∶3. The mean diameter of GA-CS-NPs was (310.27 ± 10.02) nm, the entrapment efficiency and drug-loading efficiency were (51.42 ± 0.43)% and (6.87 ± 0.47)%. The evaluation showed that the appearance of GA-CS-NPs was round and uniform. It had a certain stability under lower temperature. Conclusion: The ionic cross-linking method used to prepare GA-CS-NPs is simple, rational, and stable.

Comparison of the Lea Symbols and HOTV charts for preschool vision screening from age 3 to 4 . 5 years old / 国际眼科杂志(Guoji Yanke Zazhi)

AlM:To evaluate the applicability and the development of the normal visual acuity from age 3 to 3. 5 years using Lea Symbols and HOTV charts. METHODS:lt was a survey research study. Totally, 133 preschoolers ( 266 eyes ) between 3 to 4. 5 years old recruited from two kid-gardens in Guangzhou were tested with both the Lea Symbols chart and the HOTV chart. Outcome measures were monocular logarithm of the minimum angle of resolution ( logMAR) visual acuity and inter-eye acuity difference in logMAR units for each test. RESULTS: The testability rates of the two charts were high (96. 24% vs 92. 48%, respectively), but difference was not statistically significant (P>0. 05). The difference between the two kind of monocular vision was not statistically significant (the right eye: t=0. 517, P=0. 606;the left eye: t = - 0. 618, P = 0. 538 ). There was no significant difference between different eye ( Lea Symbols chart:t=0. 638, P=0. 525; HOTV chart: t= -0. 897, P=0. 372). The visual acuities of the boys were better than those of the girls, but the difference was not statistically significant (P>0. 05). The results which came from visual acuities with the two charts for the corresponding age groups (3-year-old group, 3. 5-year-old group, 4-year-old group, 4. 5-year-old group) indicated that the visual acuities of the preschoolers were improving with increasing age, but the difference among the visual acuities with the Lea Symbols chart was not statistically significant (the right eye:F=2. 662, P=0. 052;the left eye:F=1. 850, P=0. 143). However the difference among the visual acuities with the HOTV chart was statistically significant (the right eye:F=4. 518, P=0. 005;the left eye:F=3. 893, P=0. 011). CONCLUSlON: Both Lea Symbols and HOTV chars are accepted and appropriate for preschool vision screening from 3 to 4. 5 years old. The monocular visual acuity of preschoolers from age 3 to 4. 5 years could be assessed was similar using the two charts. There is no correlation between visual acuity and different eye. There is no statistical difference between the genders. The results further demonstrate that the preschoolers whose age reached three years old have the ability to accept the Subjective vision checks. Also the development of the normal visual acuity is faster in the early stage.

The effect of the magnesium supplementation on vascular calcification in rats / 中国应用生理学杂志

<p><b>OBJECTIVE</b>To observe the role of magnesium sulfate in vascular calcification, to explore the role and the mechanism of magnesium sulfate in vascular calcification.</p><p><b>METHODS</b>The vascular calcification model was established by administration of vitamin D3 plus nicotine (VDN) in SD rats. To estimate the extent of calcification by Von Kossa staining, calcium content and alkaline phosphatase activity, osteopontin (OPN) mRNA were determined by using semi-quantitative reverse-transcription polymerase chain reaction.The malondialdehyde (MDA) and nitric oxide (NO) content and activities of superoxide dismutase(SOD) were measured by biochemistry.</p><p><b>RESULTS</b>A strong positive staining of black/brown areas among the elastic fibers of the medial layer in calcified aorta by Von Kossa staining, calcium content and ALP activity in calcified arteries increased by 3.9-and 3.4-fold as compared with the controls. The expression of OPN mRNA was up-regulated by 40% (P < 0.01). The lipid peroxidation products MDA in vascular were increased 2.0-fold (P < 0.01). The NO content and SOD activity were greatly decreased by 64% and 72% (P < 0.01), respectively, compared with controls. However, calcium content and ALP activity in VDN plus magnesium sulfate group were lower than those in VDN group. Low and high dosage magnesium sulfate obviously relieved degree of calcification in the cardiovascular tissues in a dosage-dependent manner (P < 0.01).</p><p><b>CONCLUSION</b>Magnesium sulfate plays a role in the pathogenesis of vascular calcification by reducing vascular calcification and decreasing vascular injury.</p>

Synthesis and LAR inhibition of 7-alkoxy analogues of illudalic acid / 药学学报

To obtain higher potency and specificity, a series of 7-alkoxy analogues of illudalic acid was synthesized on the base of structure-activity relationship (SAR). All of these compounds exhibited submicromolar inhibition of the enzyme when tested against human leukocyte common antigen-related phosphatase (LAR) (for example, for 15e, IC50 = 180 nmol x L(-1)). They represent the most potent small-molecule inhibitors of LAR so far. These analogues also display excellent selectivity for LAR over other protein tyrosine phosphatases (PTPs) except for the highly homologous PTPsigma. The compound 15f is of 120-fold selectivity for LAR versus PTP-1B inhibition. The development of potent enzyme-specific inhibitors is so important that they may serve both as tools to study the role of LAR and as therapeutic agents for treatment of type II diabetes.