1.The multi-drug resistance mechanism and treatment of multidrug-resistant acinetobacter baumannii
International Journal of Pediatrics 2013;40(4):381-384
While broad-spectrum antibiotics are widely used in these years,multidrug-resistant,extensively drug resistant,even pan drug resistant bacteria arise constantly.Acinetobacter baumannii is a common conditioned pathogen,and multidrug-resistant acinetobacter baumannii (MDRAB) has become one of the trickiest problems in nosocomial infection.The resistant mechanism of MDRAB include:producing antimicrobial inactivator,changing target site or cell function,adventitia barrier and effiux pump.Currently,sulbactam,carbapenem,polymyxin,tetracycline and some other antibiotics are used in MDRAB infection.Since lacking of extensive clinic study,there is no guideline up to now,the experience is especially less in pediatrics.
2.Application of bedside continuous blood purification in the treatment of neonatal multiple organ failure
Xiaohui GONG ; Chongbing YAN ; Gang QIU ; Jingjing SUN ; Cheng CAI
Chinese Pediatric Emergency Medicine 2015;22(1):5-8
Objective To explore the efficacy and safety of bedside continuous blood purification (CBP) in the treatment of neonatal multiple organ failure (MOF).Methods Totally 6 newborn infants of MOF were hospitalized in department of neonatology in our hospital from June 2011 to June 2013.These 6 cases of clinical data were retrospectively analyzed,6 neonates were treated with CBP combined with conventional treatment.The model for CBP was continuous veno-venous hemodialysis filtration (CVVHDF),blood flow velocity was 3 to 5 ml/(kg· min),replacement fluid dose was 20 to 30 ml/(kg· h),dialysis fluid dose was 15 to 25 rnl/(min· m2).The clinical outcome measures included,blood pressure,blood pH,K+,Na+,blood urea nitrogen,creatinine,urine volume,PaO2/FiO2 and epinephrine intravenous dose,respectively before CBP treatment,6 h,12 h,24 h,48 h after CBP treatment and the end of CBP treatment.The efficacy of CBP treatment was evaluated in neonatal MOF.Results Gestational age of 6 neonates with MOF was 33 to 41 weeks,2 to 19 days old,2.25 to 3.36 kg birth weight.Primary disease was 4 cases of neonatal septicemia(1 case with congenital hereditary metabolic disease),2 cases of severe neonatal asphyxia.All 6 cases of venous catheter were smoothly done.CBP treatment persisted for 49 to 106 hours.Compared with before CVVHDF treatment,blood K+,blood urea nitrogen,creatinine significantly decreased at 12 h after CVVHDF treatment [(5.32 ± 1.84) mmol/L vs.(9.81 ±3.61) mmol/L,(9.0 ±3.4) mmol/L vs.(12.8 ±6.1) mmol/L,(99 ± 16) μmol/L vs.(176 ±25) μmol/L,P <0.05],and reached the normal range at 24 h after treatment,urine volume significantly increased at 24 h after treatment (P < 0.05).PaO2/FiO2 reached 200 mmHg (1 mmHg =0.133 kPa) at 6 h after treatment and more than 300 mmHg at 24 h after treatment(P <0.05).Fifty percent of epinephrine intravenous dose were down-regulation at 12 h after treatment and stopped using epinephrine at 48 h after treatment.CBP treatment of 6 cases showed effective.Conclusion Application of bedside CBP treatment in neonatal MOF is safe,can effectively help neonates with MOF to skip over renal failure stage.
3.Clinical Study on Trigger Points Combined with Acupoints by Acupuncture for Subjective ;Tinnitus
Tiantian ZHU ; Chongbing MA ; Xueyan SHENG ; Xingke YAN
Chinese Journal of Information on Traditional Chinese Medicine 2016;23(9):28-31
Objective To assess the therapeutic efficacy of trigger points (TrPs) combined with acupoints by acupuncture for subjective tinnitus (ST);To discuss the correlation of TrPs acupuncture inactivation and the releasing of symptom. Methods Sixty patients with ST were randomly divided into trial group and control group, 30 cases in each group. Those in trial group were acupunctured by TrPs combined with acupoints, and those in control group received regular acupuncture treatment. The scores of tinnitus severity assessment were available for effect evaluation after 3 treatment course. The size and tenderness degree of TrPs contraction knots were checked, and TrPs local thermal infrared spectrum was compared by infrared camera. Results The post-treatment tinnitus severity scores had significant difference compared with pre-therapy in each group (P<0.01). The total effective percentage of trial group with 93.33%(28/30) was obviously higher than control group with 86.67%(26/30) (P<0.05). The post-treatment and pre-therapy contraction knots size, tenderness and temperature difference of TrPs within trial groups had a very significant difference (P<0.01), and difference of tenderness and temperature of patients’ TrPs had a positive correlation with the difference of tinnitus severity scores before and after treatment (P<0.01). The contraction knots area of TrPs had not significant correlation with the difference of tinnitus severity scores (P>0.05). Conclusion TrPs combined with acupoints by acupuncture for ST patients are better than conventional acupoints in improving clinical symptoms. The deactivation of TrPs is closely related to tinnitus symptoms, therefore, temperature and tenderness of TrPs can be employed to assist in the diagnosis, or evaluated the tinnitus severity and therapeutic efficacy.
4.Study on intervention mechanism of acupuncture for neuron abnormal neural coding in visual cortex area 17 of monocular deprivation rats
Tiantian ZHU ; Chongbing MA ; Xingke YAN ; Yanping YANG
Journal of Acupuncture and Tuina Science 2017;15(4):257-262
Objective: To investigate the electrophysiological mechanism of acupuncture for the visual cortex plasticity during the sensitive period. Methods: Fifty 2-week-old Wistar rats were randomly divided into a blank control group, a model group, an early-stage acupuncture group, a middle-stage acupuncture group and a late-stage acupuncture group, 10 rats in each group. Monocular deprivation amblyopia models were prepared in rats except those in the blank control group by unilateral eyelid suture. After successful modeling, no treatment was applied to the rats in the model group. Rats in each acupuncture group were treated with acupuncture at bilateral Jingming (BL 1), Cuanzhu (BL 2), Fengchi (GB 20) and Guangming (GB 37), started from the 3rd day, 12th day or 21st day after modeling separately, once a day, for a total of 9 d treatment. The neuronal discharge frequency and action potential inter-spike interval (ISI) in the rat visual cortex area 17 of each group were measured by multi-channel microelectrode array nerve signal technique. Results: The discharge number of neurons in the visual cortex of the model group was significantly lower than that in the blank control group (P<0.05). After treatment, the discharge numbers in the early-stage acupuncture group and the middle-stage acupuncture group were significantly higher than that in the model group (P<0.05). There was no significant difference in the discharge numbers between the late-stage acupuncture group and the model group (P>0.05). The discharge number in the middle-stage acupuncture group was lower than that in the early-stage acupuncture group (P<0.05), and the discharge number of the late-stage acupuncture group was lower than that in the middle-stage acupuncture group (P<0.05). The ISI sequences of the visual cortex neurons were mainly distributed under 0.3 s in the blank control group, under 15 s in the model group, under 1 s in the early-stage acupuncture group, under 4 s in the middle-stage acupuncture group, and under 10 s in the late-stage acupuncture group, divergent in each group. Conclusion: The neuronal coding appears abnormality in the visual cortex area 17 of monocular deprivation rats, indicating that there is a plasticity change in the visual cortex neurons during the sensitive period. Acupuncture has a significant effect on the abnormal neural coding. The therapeutic efficacy is closely related to the stage to start the treatment. Early stage treatment in the sensitive period is the key to achieving the good efficacy.
5.Effect on Immunologic Function of Chronic Abacterial Prostatitis Rats Treated by Electroacupuncture at Sanyin Points
Xingke YAN ; Lili DONG ; Anguo LIU ; Lin HAN ; Junyan WANG ; Chongbing MA ; Tiantian ZHU ; Tianyou HE
Chinese Journal of Information on Traditional Chinese Medicine 2013;(9):44-46
Objective To study the immunologic mechanism of electroacupuncture at Sanyin points on chronic abacterial prostatitis rats. Methods Forty-eight male rats were divided randomly into normal group, model group, drug group and electroacupuncture group, 12 rats in each group. The animal model was made by SC purified prostate protein twice with immunologic adjuvant, and the rats in electroacupuncture group and drug group were treated by electroacupuncture at Sanyin points and feeding Cernilton for 15 days. The changes of prostate weight, index, pathology and contents of IgG, expressions of IL-2 and IL-8 in prostate homogenate were observed. Results Compared with normal group, the prostate weight and index were significantly increased in model group (P<0.05), the content of IgG was significantly increased (P<0.05), cytokine IL-2 and IL-8 were highly expressed (P<0.05, P<0.01), prostate tissue’s morphology and structure were significantly impaired in model group. Compared with model group, the prostate weight and index were significantly decreased in electroacupuncture group after treatment (P<0.05 or P<0.01), pathological changes reduced significantly, the content of IgG decreased significantly (P<0.05), the expressions of cytokine IL-2 and IL-8 were significantly decreased (P<0.05, P<0.01), and the pathological manifestation of chronic inflammation was significantly improved. Conclusion Electroacupuncture at Sanyin points can reduce the secretion of local prostate antibody IgG, regulate the expression of cytokine IL-2 and IL-8, protect the morphology and structure of prostate tissue from damage. Electroacupuncture at Sanyin points can adjust local immunologic function and promote the recovery of prostate.
6.Curative effect analysis of mild hypothermia in treatment of neonatal hypoxic-ischemic encephalopathy and follow-up study of 36 children aged 18 months
Cheng CAI ; Xiaohui GONG ; Gang QIU ; Dong WEI ; Yong HU ; Chongbing YAN ; Jingjing SUN
Chinese Journal of Applied Clinical Pediatrics 2014;29(24):1858-1861
Objective To explore the efficacy and safety of mild hypothermia (MH) in treating the infants with moderate-to-severe neonatal hypoxic-ischemic encephalopathy(HIE),and to make a follow-up of the nerve motor development of the infants at 18 months old after discharge.Methods Totally 61 neonates with moderate-to-severe HIE in Neonatal Intensive Care Unit (NICU) from Jan.2007 to Dec.2013 were retrospectively analyzed.According to before and after MH therapeutic apparatus was used by NICU of Shanghai Children's Hospital,61 neonates of HIE were divided into 2 groups,the conventional treatment group(25 cases) and MH treatment group(36 cases).The patients in both groups were measured respectively by using the amplitude integrated electroencephalography (aEEG) before MH treatment and at 72 hours after M H treatment,by neonatal behavioral neurological assessment(NBNA) on the 28th day after birth,and by adopting Bayley Scales of Infant Development at 18 months old.The adverse reactions,serious disability cases and deaths of MH treatment were recorded.Results Compared with the conventional treatment group,aEEG recording before treatment showed no statistically significant differences in MH treatment group [maximum voltage:(22.4 ±3.1) μV vs(18.6 ±2.5) μV,maximum voltage:(8.2 ±2.6)μV vs(6.5 ±1.9) μV,t =1.264,0.852,all P > 0.05].However,aEEG recording at 72 h after treatment showed statistically significant differences in MH treatment group [maximum voltage:(24.1 ± 3.2) μV vs (30.6 ± 2.8) μV,maximum voltage:(9.7 ± 3.4) μV vs (13.3 ± 2.2) μV,t =6.376,4.257,all P < 0.05].Severe disability cases [24.0% (6/25 cases) vs 5.6% (2/36 cases),x2 =4.405,P < 0.05] and deaths [16.0% (4/25 cases) vs 0 (0/36 case),x2 =6.1 64,P < 0.05] in MH treatment group were significantly decreased,and there was significantly difference in NBNA on the 28th day after birth[(35.9 ± 2.1) vs(39.1-± 1.6),t =3.361,P < 0.05],and scales of neurobehavioral evaluation through follow-up of 18 months old [mental development index (MDI):(85.2 ± 10.7) vs (96.5-± 13.1),t =7.839,P < 0.05].Very few neonates had apnea,coagulation dysfunction,arrhythmia and other adverse reactions in MH treatment course.Conclusions MH treating moderate-to-severe HIE is safe and effective.MH is effective in reducing death and major disabilities in neonates with moderate-to-severe HIE and without significant side effects.MH can obviously improve the development of nervous system disorders in 0-18 months infants,and can significantly improve these infants' Bayley developmental scale neurobehavioral scores.
7.Evaluation of continuous blood purification in clinical management of critically ill neonates
Cheng CAI ; Xiaohui GONG ; Gang QIU ; Chongbing YAN ; Zhijun SONG ; Yihuan CHEN
Chinese Journal of Perinatal Medicine 2015;18(10):737-741
Objective To explore the efficacy and safety of bedside continuous blood purification (CBP) in the treatment of critically ill neonates.Methods Totally ten critically ill neonates were hospitalized in Department of Neonatal Intensive Care Unit (NICU) in Shanghai Children's Hospital from June 2011 to May 2015, and managed with CBP treatment.The indications of CBP therapy were multiple organ dysfunction syndrome (MODS) failed to conventional treatment or combined with acute renal failure (ARF).The model for CBP was continuous veno-venous hemofiltration dialysis (CVVH).The clinical outcomes included blood electrolytes, serum bio markers, urine output, hemodynamic indicators, dose of intravenous epinephrine before treatment, 6, 12, 24, 48 h after treatment and at the end of CBP.Complications of CBP were also observed.Statistical analysis was performed with ANOVA and Dunnett-t test.Results The underlying problems of the ten newborns were septicemia (n=5), severe neonatal asphyxia (n=2), congenital hereditary metabolic disease (n=2) and traumatic asphyxia (n=l).The venous catheter was successfully inserted for all babies and CBP treatment continued for (86.7 ± 25.9) h averagely with obvious effect.Four of the ten cases were cured and discharged, and the rest six refused to treatment and died after due to irreversible injury of the nervous system although they had survived from the oliguric stage of ARF.The complications of CBP included thrombocytopenia (n=3), catheter blockage (n=2), hypotension (n=l).No hypothermia, thrombosis, bleeding or infection occurred.The mean blood pressure and partial pressure of oxygen in arterial blood/fraction of inspiration oxygen (PaO2/ FiO2) of the ten cases 6 h after the beginning of treatment were higher than those before [(46.4 ± 7.5) vs (36.5 ±8.3) mmHg, 1 mmHg=0.133 kPa;(210.0±62.0) vs (93.0±43.0) mmHg;t=2.647 and 6.378, both P < 0.05].At the 12th hour since treatment start, the blood pH value was 7.4 ± 0.2, which was higher than that before treatment (6.9 ± 0.2, t=2.731, P < 0.05), and kept in normal range.At the 24th hour, the serum levels of potassium, urea nitrogen and creatinine dropped to normal range compared to those before treatment [(4.8±2.9) vs (9.6± 3.6) mmol/L;(7.2±2.3) vs (13.6±6.3) mmol/L;(51.0± 12.0) vs (172.0±23.0) μ mol/L;t=4.571, 5.427 and 21.672, all P < 0.05].Urine output increased from zero before the treatment to (0.7±0.3) ml/(kg · h) after 24 h (t=3.284, P < 0.05).The maintaining dose of intravenous epinephrine decreased since 12 h after the beginning of treatment and was ceased at the 48th hour.Conclusion CBP is an effective and feasible treatment for critically ill neonates.
8.Clinical analysis of non-immune hydrops in 10 fetuses
Cheng CAI ; Xiaohui GONG ; Gang QIU ; Yunlin SHEN ; Chongbing YAN ; Yihuan CHEN ; Zhijun SONG
Journal of Clinical Pediatrics 2017;35(9):658-661
Objective To explore the clinical features, diagnosis, and treatment of non-immunologic hydrops fetalis (NIHF). Methods The clinical data of 10 cases of NIHF in neonatal intensive case unit during January 2011 to December 2016 were analyzed retrospectively. The related literatures were reviewed. Results In 10 cases of NIHF (6 males and 4 females). the gestational age were 32-42 weeks, and the birth weight was 2.25-3.95 kg. Among them, there were 3 cases of infectious diseases (cytomegalovirus, Streptococcus agalactiae, and parvovirus infection, one case each), 2 cases of fetal cardiovascular abnormalities, 2 cases of chromosomal abnormalities, 1 case of abnormal thoracic structures, 1 case of twin transfusion syndrome, and 1 case of etiology unknown of fetal hydrops. The clinical manifestations showed that there were 8 cases with 2 or more areas of edema (or hydrops), and only 2 cases with skin edema. Finally, 6 cases were cured and discharged, 2 cases were discharged by themself, and 2 cases died. Conclusions Prenatal ultrasound is a reliable method for the diagnosis of NIHF. Fetal edema in early pregnancy, especially with congenital malformations, is recommended for termination of pregnancy. After birth, NIHF should be diagnosed promptly so as to avoid or reduce severe complications.
9.Clinical features and molecular genetic analysis of 6q24-related transient neonatal diabetes mellitus
Juan LI ; Yiwen ZHU ; Chongbing YAN ; Dong WEI ; Cheng CAI ; Xiaohui GONG ; Jingjing SUN
Chinese Journal of Perinatal Medicine 2021;24(5):326-334
Objective:To investigate the clinical and molecular genetic characteristics of 6q24-related transient neonatal diabetes mellitus (6q24-TNDM).Methods:The clinical data of two neonates with 6q24-TNDM admitted to Shanghai Children's Hospital, Shanghai Jiao Tong University in 2017, were retrospectively collected. The methylation levels of 16 cytidine-phosphate-guanosine (CpG) sites from the methylated differentially modified region (DMR) in 6q24 were quantitatively analyzed by pyrosequencing.Results:Case 1, aged 5 d, was born at 37 +4 gestational weeks due to fetal growth restriction, and case 2 was 11-days old and born at 38 +2 gestational weeks. Both infants were male and small for age. They were born through a cesarean section. The birth weight of case 1 and case 2 were 2 340 g and 2 600 g, respectively. They were admitted due to hyperglycemia with blood glucose of 12.95 and 8.00 mmol/L on admission, respectively. Physical examination showed slightly poor skin elasticity and thin subcutaneous fat. Laboratory examination revealed lower serum insulin (<1.39 and 3.94 pmol/L) and peptide C (0.05 and 0.14 nmol/L) levels, positive results of urine glucose, negative tests for urine ketone, serum anti-glutamic acid decarboxylase antibody, anti-insulin antibody, and islet cell antibody in both cases. Normal size of the pancreas was observed by ultrasonography. The infants were improved and were discharged after subcutaneous insulin infusion for more than two weeks. The treatment was discontinued at 69 d and 42 d postnatally for case 1 and case 2. Prenatal diagnosis of the two infants showed normal karyotypes and uniparental disomy of chromosome 6 indicated by single nucleotide polymorphism chip. No pathogenic mutations were detected by next-generation sequencing after admission. The methylation levels of 16 CpG sites in DMR of 6q24 in the two cases, which were quantitatively analyzed by pyrosequencing, were lower than 10% (normal value in healthy matched controls: 40%), indicating an obvious hypomethylation. Conclusions:For children with TNDM who are small for gestational age at birth, presenting hyperglycemia with decreased serum insulin and C-peptide levels, pyrosequencing can be used to quantitatively analyze the methylation levels of CpG sites in 6q24 DMR, which can quickly and directly assist in the diagnosis of 6q24-TNDM, thereby contributing to the treatment and prognosis assessment.
10.Acupuncture intervening depressive disorder:research progress in its neurobiological mechanism
Pengfei LI ; Min XIAO ; Xuejiao MA ; Xingke YAN ; Chongbing MA ; Jue HONG
Journal of Acupuncture and Tuina Science 2023;21(3):239-246
Depressive disorder seriously affects people's physical and mental health.Acupuncture is a safe and effective treatment for depression,yet,its mechanism is unclear.Therefore,acupuncture's action mechanism in intervening depression was summarized from several perspectives,including morphology and ultrastructure of neurons in depression-related brain areas,function and structure of glial cells,brain functional and structural connectivity,and neuroelectrophysiology.It's discovered that acupuncture can repair the morphological and ultrastructural damage of neurons in the hippocampus and prefrontal lobe,mitigate the functional and structural injuries of glial cells in the hippocampus and prefrontal lobe,strengthen functional connectivity and heal structural connection,and promote neuroelectrophysiological activities,which possibly are the principal mechanisms of how acupuncture works in intervening depressive disorder.