1.Study on Glycolic Acid Oxidase (GO) of Spirulina(Arthrospira)
Zhi-Zhong WANG ; Dong-Hui GONG ; Hua LIU ; Chen QIAO ;
Microbiology 1992;0(04):-
A comparative study on the glycolic acid oxidase (GO) of the domestic Spirulina(Arthrospira) platensis (S_(1)) from alkaline lake in Erdos Plateau and the imported S. (A.) platensis (S_(2)) and S. (A.) maxima (S_(3)) as well is made with colorimetric method. The results show that activity of GO (25℃, pH 8.0) of S_(1), S_(2 )and S_(3) is 70.9 U/gFW, 59.6 U/gFW and 80.9 U/gFW respectively; the GO's optimum temperature of S_(1)、S_(2) and S_(3 )is 30℃; the GO's optimum pH value of S_(1 )is 8.6,while that of S_(2 ) 8.2 and that of S_(3) 8.4; the GO of S_(1 )is stable from 0℃ to 35℃ and from pH 7.6 to pH 10.0, while that of S_(2) from 0℃ to 30℃ and from pH 8.0 to pH 9.0 and that of S_(3) from 0℃ to 35℃ and from pH 8.0 to pH 8.6. Adaptive range of S_(1) GO for temperature and pH is wider, and activity at low and high temperature and under strong acidand alkali conditions is higher than that of the imported species.
2.Status of iodine content of common foods in different geographical areas in Fujian Province
Zhi-hui, CHEN ; Yu-gong, ZHAO ; Jia-ni, WU
Chinese Journal of Endemiology 2013;(3):276-280
Objective To determine the iodine content of common foods in different geographical areas (coastal city,coastal rural area,mountainous city and rural area) in Fujian Province and provide basic data for evaluation of dietary iodine intake.Methods In 2010,based on the types of food of the total diet study,one food sample(consumption rate is greater than 1%) was collected in coastal city(Taijiang),coastal rural area(Xiang'an),mountainous city (Sanyuan) and rural area(Mingxi).These foods including cereal,beans,potato,meat,eggs,milk,aquatic products,vegetables,fruits,sugar,beverages,liquor and seasoning,and so on 184 kinds of common foods.The iodine content of these food was tested by As (Ⅲ)-Ce4+ catalytic spectrophotometry.Results Among the 184 kinds of food tested,164 were not indicated food iodine content in the Chinese Food Composition Tables (2004).The iodine content of common food in Fujian Province in descending order were salt (30 000 μg/kg),aquatic products(341.4 μg/kg),eggs(255.9 μg/kg),dairy(106.7 μg/kg),meat(103.2 μg/kg),cereals (40.7 μg/kg),vegetables(30.7 μg/kg),beans(12.9 μg/kg),sugar(8.5 μg/kg),fruits(6.7 μg/kg),potatoes(2.4 μg/kg) and alcohol(2.1 μg/kg).The iodine content of kelp and laver was the highest in all the food,which was 314 780.1,176 956.5 μg/kg,respectively.The iodine content of food from animal(241.4 μg/kg) was much higher than that of the food from plant(25.4 μg/kg).The iodine content of common cereals,potatoes,beans,sea algae,meat,eggs and aquatic products was compared in the four areas,and the difference was not statistically significant (M =135.5,20.0,42.0,16.0,54.0,4.0,x2 =1.4,all P > 0.05).The iodine content of vegetables and fruits was compared,and the difference was statistically significant (x2 =8.5,M =204.5,all P < 0.05).Conclusion The iodine content of different foods is different.
3.Analysis of monitoring results of patients with iodine deficiency disorders in Fujian Province in 2011
Jia-ni, WU ; Zhi-hui, CHEN ; Mu-hua, WANG ; Yu-gong, ZHAO
Chinese Journal of Endemiology 2013;32(4):404-407
Objective To analyze the monitoring results of patients with iodine deficiency disorders,and to find out the eliminating process of iodine deficiency disorders and the iodine nutritional status of population before adjustment of iodine level in edible salt in Fujian Province.Methods Thirty counties(cities,districts) were sampled by population proportion probability sampling in the whole Province in 2011; one primary school was selected from each of those 30 counties(cities,districts) ; 40 children aged 8-10 were selected from each of those 30 primary schools; thyroid volume of these children was examined by type-B ultrasound and the iodine level in edible salt from those 40 households was tested by the method of direct titration.Twelve urine samples of those 40 children were collected randomly,and urinary iodine level was tested by arsenic cerium catalytic spectrophotometry.Resident's per capita salt intake was calculated by the three-day-weighing method.In the village(where the school was in),5 drinking water samples were collected in the north,the south,the east,the west and the center of the village.If the water supply was centralized in the village,then 2 tap water samples were collected.Water iodine level was determined by arsenic cerium catalytic spectrophotometry.Three townships(towns,street offices)were selected in the vicinity of those schools; 5 pregnant and 5 lactating women were selected in each of those 3 townships (towns,street offices).Their urinary iodine level was determined by arsenic cerium catalytic spectrophotometry.Results Totally 1219 children aged 8 to 10 were examined,and their goiter rate was 4.92%(60/1219).Three hundred and sixty three urine samples were tested,and the median urinary iodine level was 223 μg/L.Among them,urinary iodine < 50 μg/L accounted for 5.2% (19/363),and < 100 μg/L accounted for 14.6% (53/363).The median urinary iodine level of pregnant women was 147.2 μg/L,and 52.0%(235/452) of them were less than 150 μg/L.The median urinary iodine level of lactating women was 134.1 μg/L.The consumption rate of qualified iodized salt was 94.4% (1143/1211).Per capita daily salt intake was 6 g,and 81.4% (293/360) of the residents' intake was less than 9 g.The median iodine content of drinking water was 6.2 μg/L,and 89.5% (68/76) of them was less than 10 μg/L.Conclusions All indicators have met the national standard of eliminating iodine deficiency disorders in Fujian Province in 2011.But there is an iodine deficiency problem in pregnant women,and these women should be given extra iodine supplement.
4.Effect of Guilingji Capsule on the fertility, liver functions, and serum LDH of male SD rats exposed by 900 mhz cell phone.
Hui-Rong MA ; Yuan-Yuan LI ; Ya-Ping LUO ; Xue-Lian MA ; Zhi-Qiang GONG
Chinese Journal of Integrated Traditional and Western Medicine 2014;34(4):475-479
OBJECTIVETo observe the effect of Guilingji Capsule (GC) on the fertility, liver functions, and serum lactate dehydrogenase (LDH) of adult male SD rats exposed by 900 MHz cell phone.
METHODSTotally 18 adult male SD rats and 36 adult female rats in child-bearing period were selected and randomly divided into three groups according to weight equilibrium principle, i.e., the normal group, the radiated group, and the GC group, 6 males and 12 females in each group. Male rats in the normal group and all female rats were not radiated. Male rats in the radiated group and the GC group received radiation for 4 h per day, lasting for 18 successive days. Rats in the GC group received GC suspension at the daily dose of 0. 15 g/kg by gastrogavage at the same time. Equal volume of normal saline was administrated to other male rats. Then male rats were mated with corresponding female rats from the 14th radiation night to the 18th radiation night in the ratio of 1:2. Male rats were killed following on the next morning of ending the radiation. Female rats were normally fed and then killed before delivery. The pregnant outcomes of female rats in responding groups (the rates of pregnancy and the number of death fetus, birth weight, body length, and tail length) were observed and compared. Serum alanine aminotransferase (ALT), aspartate transferase (AST), AST/ALT, and LDH levels of the male rats were detected by colorimetry. Histological and morphological changes of liver were observed by HE staining.
RESULTSCompared with the normal group, the pregnancy rates of female rats decreased and the number of death fetus increased, the serum LDH level obviously increased in the radiated group (P < 0.05). Serum levels of ALT, AST, and AST/ALT were no significantly changed in the radiated group. The hepatocyte nuclear atrophy and cytoplasm vacuolar degeneration appeared. Compared with the radiated group, the pregnancy rates increased, the number of death fetus dropped, and the serum level of LDH decreased in the GC group (P < 0.05). There was no obvious change in serum levels of ALT, AST, or AST/ALT. The hepatocyte nuclear atrophy and cytoplasm vacuolar degeneration were significantly attenuated. The histomorphological structures recovered to normal basically in the GC group.
CONCLUSIONSThe pregnancy rates could be decreased, the number of death fetus increased, histomorphological structures abnormal, and serum LDH level increased by exposure toy GSM 900 MHz cell phone. GC could prevent and treat the aforesaid lesion. But there was no statistical difference in serum ALT or AST levels.
Animals ; Cell Phone ; Drugs, Chinese Herbal ; pharmacology ; Female ; Fertility ; Lactate Dehydrogenases ; blood ; Liver ; drug effects ; Male ; Pregnancy ; Radiation ; Rats ; Rats, Sprague-Dawley
5.Research progress of anti-acute marrow leukemia drugs by targeting FLT3
Hui-ya JIA ; Bo YANG ; Xiao-meng ZHANG ; Jian-hong GONG ; Ya WU ; Yan-le ZHI
Acta Pharmaceutica Sinica 2023;58(3):605-615
Acute myeloid leukemia (AML) is a genetic heterogeneous disease in which primordial and juvenile myeloid cells proliferate or accumulate abnormally in bone marrow, peripheral blood and other tissues, resulting in damage to normal hematopoietic function. Studies have shown that about 30% of AML patients have FMS-like tyrosine kinase 3 (FLT3), FLT3 abnormal regulation is closely related to the occurrence and development of AML. At present, FLT3 has become an important target for developing small molecular targeted drugs. Currently, a variety of FLT3 inhibitors and FLT3 degraders have been developed targeting FLT3, and some compounds have exhibited good anti-AML activity. This article summarizes and sorts out the current mainstream drugs for AML therapeutic targeting FLT3, in order to provide a reference for the development and design of AML drugs.
6.Survey of studies on adjuvant diagnostic method of stimulating auricular points at home and abroad.
Gong-Sun CHEN ; Zhi-Hui HU ; Bing ZHU
Chinese Acupuncture & Moxibustion 2007;27(12):939-941
The auricular (including auricular acupoints) adjuvant diagnostic method, besides inspection (including dyeing method), palpation (including thermometric method), tenderness method (including impressing method) and electrical detection, includes the adjuvant diagnostic method of stimulating auricular points as well, it has been mostly studied and used by specialists of western medicine or doctors of integrated Chinese and western medicine. But it hasn't been introduced in the published Chinese monographs of auricular acupuncture yet. This article briefly introduces the adjuvant diagnostic method of stimulating auricular points combined with X-ray radiography; application in fetal heart electronic monitoring and fetal biophysical monitoring; and diagnostic methods of auricle reflex, vascular autonomous signals, and auricle and somatic 7 frequency response regions, which began to be researched abroad 35 years ago. The authors hope it will give some invigoration or illumination to my colleagues in acupuncture, especially those who are interested in auricular acupuncture.
Acupuncture Points
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Acupuncture, Ear
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Diagnostic Techniques and Procedures
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Fetal Monitoring
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Humans
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Medicine, Chinese Traditional
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Reflex
7.Relationship between tyrosine phosphorylation and protein expression of insulin receptor and insulin resistance in gestational diabetes mellitus.
Yong-Li, CHU ; Yu-Dian, GONG ; Zhi-Hui, SU ; Hong-Na, YU ; Qing, CUI ; Hai-Yang, JIANG ; Hong-Mei, QU
Journal of Huazhong University of Science and Technology (Medical Sciences) 2014;34(3):393-7
The relationship between tyrosine phosphorylation (TP) and protein expression of insulin receptor (InsR) and insulin resistance (IR) in patients with gestational diabetes mellitus (GDM) was investigated. The InsR expression and TP in skeleton muscle tissue were determined by Western blotting and immunoprecipitation in women with GDM (GDM group, n=22), normal pregnant women (normal pregnancy group, n=22) and normal non-pregnant women (normal non-pregnant group, n=13). Fasting plasma glucose (FPG) and fasting insulin (FINS) were measured by oxidase assay and immunoradioassay. The results showed that the levels of FPG (5.61±0.78 mmol/L), FINS (15.42±5.13 mU/L) and Homeostasis model assessment-IR (HOMA-IR) (1.21±0.52) in GDM group were significantly higher than those in normal pregnancy group (4.43±0.46 mmol/L, 10.56±3.07 mU/L and 0.80±0.31 respectively) (P<0.01). The levels of FINS and HOMA-IR in normal pregnancy group were significantly higher than those in normal non-pregnant group (7.56±2.31 mU/L and 0.47±0.26 respectively) (P<0.01). There was no significant difference in the InsR expression level among the three groups (P>0.05). TP of InsR with insulin stimulation was significantly decreased in GDM group (0.20±0.05) as compared with normal pregnancy group (0.26±0.06) (P<0.01). TP of InsR with insulin stimulation in normal pregnancy group was lower than that in normal non-pregnant group (0.31±0.06) (P<0.01). TP of InsR with insulin stimulation was negatively related with HOMA-IR in GDM group (r=-0.525, P<0.01). There was no correlation between the protein expression of InsR and HOMA-IR in GDM group (r=-0.236, P>0.05). It was suggested that there is no significant correlation between the protein expression of InsR in skeletal muscle and IR in GDM, but changes in TP of InsR are associated with IR in GDM.
8.Wnt1/β-catenin signaling up-regulates spinal VGLUT2 expression to maintain neuropathic pain in mice
Zhi-Ling ZHANG ; Gang YU ; Xiao-Nan LIANG ; Rui-Bin SU ; Ze-Hui GONG
Chinese Journal of Pharmacology and Toxicology 2018;32(4):340-340
OBJECTIVE The present study was aimed to investigate the role of Wnt/β-catenin sig-naling in spinal VGLUT2 regulation and neuropathic pain. METHODS To elucidate the association be-tween VGLUT2 and neuropathic pain,we determined the expression and distribution characteristics of VGLUT2 in mice subjected to spared nerve injury(SNI),and then observed the effects of two VGLUT2 targeting shRNAs on mechanical allodynia and glutamate release.The effects of Wnt/β-catenin signal-ing on VGLUT2 expression and pain behavior were investigated by using Wnt agonist,Wnt1,and Wnt/β-catenin pathway inhibitor XAV939 in SNI mice.RESULTS SNI surgery induced significant up-regula-tion of VGLUT2 on postoperative days 7,14,and 21.Double immunofluorescence labeling of VGLUT2 with NeuN,MAP2,Iba-1,or GFAP showed that VGLUT2 was mainly expressed in neurons in the dor-sal horn of the spinal cord after SNI(NeuN,MAP2).Intrathecal administration of VGLUT2 shRNAs be-fore or after SNI surgery significantly decreased mechanical allodynia and glutamate release. Mean-while,Wnt1/β-catenin signaling increased significantly after SNI surgery.Over-expression of β-catenin in PC12 cells increased VGLUT2 protein level,intrathecal administration of Wnt agonist or Wnt1 signifi-cantly increased VGLUT2 protein expression in spinal cord, while Wnt/β-catenin pathway inhibitor XAV939 decreased VGLUT2 expression in PC12 cells and spinal cord.Additionally,intrathecal admin-istration of XAV939 7 days after SNI significantly attenuated mechanical allodynia in mice, which was in accordance with down-regulation of VGLUT2 protein levels.VGLUT2 shRNAs significantly attenuat-ed Wnt agonist or Wnt1 induced mechanical allodynia. CONCLUSION Wnt1/β-catenin signaling path-way up-regu-lates the spinal VGLUT2 expression,and this regulation is involved in neuropathic pain behavior.
9.Tissue CEA and Its Clinicobiological Significance in Patients with Colorectral Cancer
Gong CHEN ; De-Sen WAN ; Jing-Hui HOU ; Su-Xia LIN ; Zhi-Zhong PAN ; Zhi-Wei ZHOU ; Ying-Bo CHEN
Chinese Journal of Cancer 2001;20(6):628-630
Objective:The aim of this study was to investigate the distribution of carcinoembryonic antigen (CEA) in colorectal cancerous tissue and to evaluate its clinicobiological significance, especially its prognostic value. Methods: Distribution of tissue CEA in 189 patients with colorectal cancer were detected with immunohistochemical method, and its relationship with many clinicopathological parameters was analyzed with SPSS software. Results: CEA distributed in both tumor tissue and normal mucosa but there was a significant difference between them. Staining positive rate of CEA in tumor tissue was 96.3% , with 52.4% strong and 36.5% moderate. While in normal mucosa it was 17.4% , with 16.2% weak and 1.2% moderate. There was a close relationship between tissue CEA and many clinicopathological parameters, such as differentiation, invasion depth, metastasis to regional lymph node, preoperative serum CEA level, postoperative tumor recurrence, metastasis, and postoperative survive. Conclusions: CEA overexpression in colorectal cancer tissue. Tissue CEA is a good prognostic indicator for colorectal cancer reflecting its clinicobiological features. Combining tissue CEA with serum CEA level should be better for predicting prognosis,and patient with both elevated preoperative serum CEA level and strong expression of CEA in tumor tissue indicates the worst prognosis.
10.The therapeutic effect of high-dose esomeprazole on stress ulcer bleeding in trauma patients.
Li-Hong CUI ; Chao LI ; Xiao-Hui WANG ; Zhi-Hui YAN ; Xing HE ; San-Dong GONG
Chinese Journal of Traumatology 2015;18(1):41-43
PURPOSETo compare the therapeutic effects of different doses of intravenous esomeprazole on treating trauma patients with stress ulcer bleeding.
METHODSA total of 102 trauma patients with stress ulcer bleeding were randomly divided into 2 groups: 52 patients were assigned to the high-dose group who received 80 mg intravenous esomeprazole, and then 8 mg/h continuous infusion for 3 days; 50 patients were assigned to the conventional dose group who received 40 mg intravenous esomeprazole sodium once every 12 h for 72 h.
RESULTSCompared with the conventional dose group, the total efficiency of the high-dose group and conventional dose group was 98.08% and 86.00%, respectively (p < 0.05), the hemostatic time was 22.10 h ± 5.18 h and 28.27 h ± 5.96 h, respectively (p < 0.05).
CONCLUSIONBoth doses of intravenous esomeprazole have good hemostatic effects on stress ulcer bleeding in trauma patients. The high-dose esomeprazole is better for hemostasis.
Adolescent ; Adult ; Aged ; Anti-Ulcer Agents ; therapeutic use ; Dose-Response Relationship, Drug ; Esomeprazole ; therapeutic use ; Female ; Humans ; Male ; Middle Aged ; Peptic Ulcer Hemorrhage ; drug therapy ; Stomach Ulcer ; complications ; Stress, Psychological ; complications ; Wounds and Injuries ; complications