1.Comparative effects of valsartan and extended realse nifedipine tablets on lowering blood pressure and reversing left ventricular hypertrophy
Yuan-Zhou LI ; Li-Xian YANG ; Ze-Feng LV ; Si-Gan ZHONG ; Rong-Hui ZENG ; Gui-Zhong LIU ; Ai-Wen CHEN ; Chun-Yun ZHANG ;
Chinese Journal of Primary Medicine and Pharmacy 2005;0(11):-
Objective To study the different effects of valsartan and extended realse nifedipine tablets on lowering blood pressure of essential hypertension patients and their reversal effects on left ventricular hypertrophy. Methods 100 cases of essential hypertension patients with left ventricular hypertrophy were randomly divided into valsartan group(group A) and adalt group(group B).Other antihypertensive drugs except diuretic were removed for 3 weeks.There were 50 cases in group A using valsartan 4~8mg qd,and 50 cases in group B using adalt 30~60 mg qd,the stud),lasted for 24 weeks.The blood pressure was measured and the altrasowic cardiogram examed in baseline and 24 weeks later.Results BP could be significantly reduced after treatment(P
2.Determination the concentraiton of hydroxychloroquine in human blood by HPLC
Ze YU ; Xue ZHONG ; Tai-Feng LI ; Wan-Yu FENG
The Chinese Journal of Clinical Pharmacology 2017;33(11):1013-1015
Objective To develop a high performance liquid chromatographic (HPLC) method for determination of hydroxychloroquine in human blood.Methods Metronidazole was used as the internal standard.Blood sample 300 μL were extracted with 900 μL of ethyl acetate,followed by drying with nitrogen and re-dissolving with mobile phase 60 μL.The separation was carried out on a Venusil ASB C18 (4.6 mm × 250 mm,5 μm) column at 35 ℃.The mobile phase consisted of acetonitrile -20 mmol · L-1 HCOONH4 buffer solution (15:85) (pH adjusted to 3.0 by HCOOH).The flow rate was 0.8 mL · min-1 and the injection volume was 20 μL.The detection wavelength was 254 nm.The specificity,limit of quantitation and standard curve,precision and accuracy,stability and recovery rate were investigated.Results The calibration curve of hydroxychloroquine was linear in the range of 100-3000 ng· mL-1,f=0.56×10-1C+0.39×10-1(r=0.998 2).The RSDs ofintra-day and inter-day precisions for hydroxychloroquine were within 5.5 %.The average extraction recovery in blood was (76.08 ± 6.21)% (n =5) for hydroxychloroquine.Conclusion The method was simple,sensitive,and accurate,and could be used for the measurement of hydroxychloroquine concentration in human blood.
3.Relationship between neonatal polycythemia and brain damage.
Ze-zhong TANG ; Cong-le ZHOU ; Hong-mei WANG ; Xin-lin HOU ; Yun-feng LIU ; Yi JIANG
Chinese Journal of Pediatrics 2006;44(11):845-849
OBJECTIVETo investigate the clinical manifestations, imaging characteristics as well as prognosis of neonatal polycythemia complicated with brain damage.
METHODSOne hundred and sixteen in-patients with neonatal polycythemia admitted to our hospital during January 2003 to October 2005 were analyzed. Their clinical manifestations were observed. Craniocerebral ultrasonic examination (2D, 3D), CT and MRI were employed to dynamically observe the craniocerebral imaging variances as well as the cerebral hemodynamic variations and near infrared spectroscopy (NIR) was adopted to test the cerebral oxygenation. Twenty-two cases with moderate or severe disease were followed up for 3 to 12 months.
RESULTSOut of the 116 polycythemic neonates, 53 cases had brain damages, of whom 31 had mild, 14 had moderate, and 8 had severe damages. Cranial imaging alterations were mostly ischemic injuries of various areas of different severity. The severity of brain damage was closely related to the duration of polycythemia, oxygen saturation of cerebral tissues as well as cerebral hemodynamic abnormalities. Brain injury was likely to occur in those whose polycythemia persisted for more than three days. The regional saturation of oxygen (rSO(2)) in mild brain injury cases was found to be 52.1%, while it was 47.1% in moderate and severe brain injury cases. Compared to the 58% as found in non-brain injury cases, the variance was found to be statistically significant (F = 104.466, P < 0.01). Among the cases with brain injury, cerebral hemodynamics displayed a slowdown in the blood flow velocity in the cerebral anterior artery and medium artery during the systolic phase and/or the diastolic phase. The abnormality ratio was closely related to the severity of brain injury. Through the chi(2) test the variance was proved to be statistically highly significant (chi(2) = 18.889, P < 0.01), however it was not correlated with the increase of the initial levels of hemoglobin (Hb) and hematocrit (HCT) (P > 0.05). During the follow up, neurological developmental abnormalities of various severity were found to exist in the cases with moderate (5/12) and severe disease (7/8), while cerebral palsy or epilepsy was not yet found.
CONCLUSIONNeonatal polycythemia might tend to bring about a reduction in the perfusion of cerebral blood flow and damaged cerebral oxygenation metabolism which in turn might lead to cerebral ischemic injury, which in some of the moderate and severe cases might lead to long-term neurological complications. Imaging investigations especially craniocerebral ultrasonic examination could be the practical means for the early diagnosis and evaluation of prognosis.
Brain ; pathology ; Brain Damage, Chronic ; complications ; Cerebrovascular Circulation ; Female ; Humans ; Infant, Newborn ; Infant, Newborn, Diseases ; Magnetic Resonance Imaging ; Male ; Polycythemia ; complications ; Skull ; diagnostic imaging ; Tomography Scanners, X-Ray Computed ; Ultrasonography
4.Ornithine aspartate and naloxone combined therapy for hepatic encephalopathy affects cognitive function, prognosis, and neuropeptide levels.
Ze-wen ZHOU ; Xiao-ni ZHONG ; Bao-yong ZHOU ; Ji-feng XIANG ; Run-hua WANG ; Jing YI
Chinese Journal of Hepatology 2013;21(5):385-388
OBJECTIVETo investigate the potential effects on cognitive function, prognosis, and neuropeptide levels of patients in response to combination therapy with ornithine aspartate plus naloxone for hepatic encephalopathy.
METHODSEighty-four consecutive patients diagnosed with hepatic encephalopathy were randomly divided into two equal groups. The control group (n = 42) received traditional medical treatment, and the research group (n = 42) received the traditional medical treatment as well as the combination therapy with ornithine aspartate plus naloxone. The supplemental treatment was comprised of daily intravenous injection of 10-15 g ornithine aspartate in 250 ml of 5% glucose plus intravenous drip of 3 mg naloxone in 100 ml of 5% glucose, and was given in 7-day cycles for one or two cycles. The cognitive function of patients was assessed by Hasegawa Intelligence Scale (HDS) and Mini-Mental State Examination (MMSE) questionnaires. The effective rate and time duration from coma to consciousness were recorded. Changes in blood ammonia level, markers of liver function, and neuropeptide levels were measured by standard biochemical assays. Intergroup differences were assessed by the Chi-squared test.
RESULTSThe HDS and MMSE scores of the research group were significantly higher than those of the control group after therapy. The effective rate, time duration from coma to consciousness, blood ammonia, the liver function markers alanine aminotransferase, gamma-glutamyl-transpeptidase and total bilirubin, and the neuropeptides arginine vasopressin and beta-endorphin were remarkably improved after treatment in the research group, as compared with that in the control group.
CONCLUSIONSupplementing the traditional treatment for hepatic encephalopathy with ornithine aspartate plus naloxone combination therapy provides better therapeutic outcome than traditional treatment alone.
Adult ; Dipeptides ; therapeutic use ; Female ; Hepatic Encephalopathy ; drug therapy ; metabolism ; psychology ; Humans ; Male ; Middle Aged ; Naloxone ; therapeutic use ; Neuropeptides ; metabolism ; Prognosis
5.Factors related to the outcome of patients with chronic severe hepatitis B and effectiveness of antivirus therapy.
Yun-zhong WU ; Feng-lin ZHAO ; Chun-ze ZHANG ; Ming-hui LI ; Yao XIE
Chinese Journal of Experimental and Clinical Virology 2007;21(2):120-122
OBJECTIVETo investigate the factors related to the outcome of patients with chronic severe hepatitis B and effectiveness of antivirus therapy.
METHODSThe effects of the factors including age, prothrombin activity (PTA), serum HBeAg, Anti-HBe, HBV-DNA load, with or without complication, antivirus therapy and so on, on outcome of 330 patients with chronic severe hepatitis B were analyzed in this retrospective study.
RESULTSThe mortality of patients with chronic severe hepatitis B was significantly higher among patients at higher age, with lower PTA, and with more complications. The mortality of patients with HBV-DNA more than 1x10(5) copies/ml (52.3 percent) was higher than that of patients whose HBV-DNA was less than 1x10(5) copies/ml (32.9 percent). There was no correlation between serum HBeAg or anti-HBe and the mortality. The mortality of patients with HBV-DNA higher than 1x10(5) copies/ml (30.38 percent) who were treated with lamivudine in 2005 was lower than that of patients whose HBV-DNA was less than 1x10(5) copies/ml (54.64 percent) who were not treated with any antiviral therapy in 2001.
CONCLUSIONThe higher serum virus load is the key factors of the mortality in addition to the other factors such as older age, lower PTA, more complication in the patients with chronic severe hepatitis B. The usage of antivirus therapy may be associated with lower mortality.
Adult ; Age Factors ; Aged ; Antiviral Agents ; therapeutic use ; Female ; Hepatitis B e Antigens ; blood ; Hepatitis B virus ; drug effects ; genetics ; Hepatitis B, Chronic ; drug therapy ; metabolism ; mortality ; Humans ; Lamivudine ; therapeutic use ; Male ; Middle Aged ; Prothrombin ; metabolism ; Treatment Outcome ; Viral Load
6.Monitor on influence of quality standard improvement upon Guizhi Fuling capsules efficacy.
Yue DING ; Ze-yui CAO ; Zhi-peng KE ; Zhen-zhen SU ; Liang CAO ; Na LI ; Chen-feng ZHANG ; Tuan-jie WANG ; Gang DING ; Zhen-zhong WANG ; Wei XIAO
China Journal of Chinese Materia Medica 2015;40(19):3786-3793
In 2012, the preparation process and quality standard for Guizhi Fuling capsule were improved. To compare the effects and differences of capsules before (2011) and after(2012-2014) the improvement, evaluation models for intrinsic dysmenorrhea, pelvic inflammation and hysteromyoma were applied in rats. Models were induced by oxytocin, liqiud bacteria mixture and estrogen loading, respectively. The capsules (12 batchs/year, 48 bathcs in all), sampled randomly in 2011-2014, the effects were assessed using the three models. In anti-dysmenorrhea models, remarked reduction of writhing frequency, ET-1 and PGF2α content in uterus could be detected, as well as extension of writhing latency. In pelvic inflammation rats, depression of TNF-α and raise of IL-2 were induced by earh batch of capsules. In hysteromyoma model, uterine weight and smooth muscle proliferation, including E2 and P level in plasma, were lowered obviously by all batchs of capsules. Secondly, Guizhi Fuling capsules produced in 2012-2014 revealed better effectiveness than the ones manufactured in 2011. Moreover, pharmacodynamics indexes of the samples made in 2011 differed significantly between groups, which could not be observed in the ones ot 2012-2014. After tne preparation process and quality standard improvement, the effectiveness and homogeneity of Guizhi Fuling capsules were enhanced.
Animals
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Capsules
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administration & dosage
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chemistry
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standards
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Depression
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drug therapy
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genetics
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metabolism
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Dinoprost
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metabolism
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Drugs, Chinese Herbal
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administration & dosage
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chemistry
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standards
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Dysmenorrhea
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drug therapy
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genetics
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metabolism
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Female
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Humans
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Interleukin-2
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genetics
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metabolism
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Pelvic Inflammatory Disease
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drug therapy
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genetics
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metabolism
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Quality Improvement
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Rats
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Rats, Sprague-Dawley
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Tumor Necrosis Factor-alpha
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genetics
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metabolism
7.Effect of carnosol against proliferative activity of breast cancer cells and its estrogen receptor subtype's mediation and regulation mechanisms.
Pi-Wen ZHAO ; David Yue-Wei LEE ; Zhong-Ze MA ; Yan-Ling SUN ; Shi-Ying TAO ; Jin-Feng ZANG ; Jian-Zhao NIU
China Journal of Chinese Materia Medica 2014;39(17):3344-3348
Carnosol has been proved to have anti-breast cancer effect in previous research. But its ER subtype's specific regulation and mediation mechanisms remain unclear. The aim of this study is to observe the effect of carnosol on cell proliferation and its estrogen receptor α and β's specific regulation and mediation mechanisms with ER positive breast cancer T47D cell. With estrogen receptor α and β antagonists MPP and PHTPP as tools, the MTT cell proliferation assay was performed to observe the effect of carnosol on T47D cell proliferation. The changes in the T47D cell proliferation cycle were detected by flow cytometry. The effect of carnosol on ERα and ERβ expressions of T47D cells was measured by Western blot. The findings showed that 1 x 10(-5)-1 x 10(-7) mol x L(-1) carnosol could significantly inhibit the T47D cell proliferation, which could be enhanced by MPP or weakened by PHTPP. Meanwhile, 1 x 10(-5) mol x L(-1) or 1 x 10(-6) mol x L(-1) carnosol could significantly increase ERα and ERβ expressions of T47D cells, and remarkably increase ERα/ERβ ratio. The results showed that carnosol showed the inhibitory effect on the proliferation of ER positive breast cancer cells through target cell ER, especially ERβ pathway. In the meantime, carnosol could regulate expressions and proportions of target cell ER subtype ERα and ERβ.
Blotting, Western
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Breast Neoplasms
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metabolism
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pathology
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Cell Cycle
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drug effects
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Cell Line, Tumor
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Cell Proliferation
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drug effects
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Diterpenes, Abietane
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chemistry
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pharmacology
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Dose-Response Relationship, Drug
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Estrogen Receptor Modulators
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pharmacology
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Estrogen Receptor alpha
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antagonists & inhibitors
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metabolism
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Estrogen Receptor beta
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antagonists & inhibitors
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metabolism
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Female
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Flow Cytometry
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Humans
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Molecular Structure
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Pyrazoles
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pharmacology
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Pyrimidines
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pharmacology
8.Dorsal penile nerves and primary premature ejaculation.
Hai-Feng ZHANG ; Chun-Ying ZHANG ; Xing-Hua LI ; Zhong-Ze FU ; Zhao-Yan CHEN
Chinese Medical Journal 2009;122(24):3017-3019
BACKGROUNDBased on our clinical experience, the number of dorsal penile nerves in patients with primary premature ejaculation (PPE) is not consistent with the average number (2 branches). In this study, we evaluated the number and distribution of dorsal penile nerves among healthy Chinese adults and patients with PPE.
METHODSThe dorsal nerve of the penis, the deep dorsal vein of the penis, and the dorsal artery of the penis between the deep fascia of the penis and the albuginea penis were carefully educed, observed, and counted in 38 adult autopsy specimens. The number and distribution of the dorsal penile nerve in 128 surgical patients with PPE were determined.
RESULTSThe numbers of dorsal penile nerves of the 38 cases were as follows: 7 branches in 1 case; 6 branches in 1 case; 5 branches in 6 cases; 4 branches in 9 cases; 3 branches in 14 cases; and 2 branches in 7 cases. Most of the dorsal nerves were parallel to each other and in the dorsum of the penis. In only 8 cases, the branches were connected by some communicating branches. In 4 cases, 1 or 2 thin dorsal nerves continued their pathway over the ventral aspect of the penis. The average number of branches of the dorsal penile nerve in patients with PPE was 7.16.
CONCLUSIONSBased on the study of 38 cases, the average number of dorsal penile nerves was 3.55 branches and that of patients with PPE was greater. These preliminary results suggest that the excessive dorsal penile nerves may have an impact on PPE via increased sensitivity and provide topographic data for the possible treatment of PPE.
Adult ; Ejaculation ; Humans ; Male ; Middle Aged ; Penis ; innervation ; Sexual Dysfunction, Physiological ; pathology ; Young Adult
9.Desmoplakin and clinical manifestations of desmoplakin cardiomyopathy.
Zhong-Yu YUAN ; Li-Ting CHENG ; Ze-Feng WANG ; Yong-Quan WU
Chinese Medical Journal 2021;134(15):1771-1779
Desmoplakin (DSP), encoded by the DSP gene, is the main desmosome component and is abundant in the myocardial tissue. There are three DSP isoforms that assume the role of supporting structural stability through intercellular adhesion. It has been found that DSP regulates the transcription of adipogenic and fibrogenic genes, and maintains appropriate electrical conductivity by regulating gap junctions and ion channels. DSP is essential for normal myocardial development and the maintenance of its structural functions. Studies have suggested that DSP gene mutations are associated with a variety of hereditary cardiomyopathy, such as arrhythmia cardiomyopathy, dilated cardiomyopathy (DCM), left ventricular noncompaction, and is also closely associated with the Carvajal syndrome, Naxos disease, and erythro-keratodermia-cardiomyopathy syndrome with skin and heart damage. The structure and function of DSP, as well as the clinical manifestations of DSP-related cardiomyopathy were reviewed in this article.
Arrhythmogenic Right Ventricular Dysplasia
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Cardiomyopathies/genetics*
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Desmoplakins/genetics*
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Hair Diseases
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Humans
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Keratoderma, Palmoplantar
10.Incidence of Hypoglycemia in Infants of Diabetic Mothers and Its Relationship with Brain Injury
kao-wei, LIANG ; cong-le, ZHOU ; hui-xia, YANG ; xin-lin, HOU ; ze-zhong, TANG ; yun-feng, LIU ; hong-mei, WANG ; yu-jie, LIU
Journal of Applied Clinical Pediatrics 2004;0(08):-
Objective To explore the relationship between the incidence of hypoglycemia in infants of diabetic mothers and brain injury.Methods The incidence of 86 infants of diabetic mothers combined with hypoglycemia as well as the relationship time of persistent hypoglycemia of infants were studied.And the association of the incidence and degree of brain injury with the time of persistent hypoglycemia,complication of other diseases and symptomatic hypoglycemia was also investigated.Results Seventy-five cases of temporary hypoglycemia(87.2%),and 11 cases of frequent hypolycemia(12.8%)were observed in the study.In the group of unsatisfactory maternal blood glucose control cases,the incidence of frequent hypoglycemia was 19.4%;in the group of satisfactory maternal blood glucose control cases,the incidence of frequent hypoglycemia was 8%.The overall incidence of the brain injury and the incidence of severe brain injury in the group of frequent hypoglycemic cases were higher than those in the group of temporary hypoglycemic cases.The incidence of brain injury in cases complicated with other diseases(77.4%) and in those with clinical symptoms(81.2%) were significantly higher than those in without other diseases(48.5%) and clinical symptoms(57.4%)(Pa