1.CORRELATIONS BETWEEN BLOOD PRESSURE AND BODY WEIGHT, SERUM LEPTIN IN HIGH CALORIE DIET-INDUCED OBESE RATS
Zhi HU ; Aiqun MA ; Chun YANG ; Hongyan TIAN
Journal of Pharmaceutical Analysis 2006;18(2):183-186
Objective To examine the change of body weight (BW) and blood pressure (BP) in obese rats, clarify relationships between BP and BW and other factors. Methods Male Spraque-Dawley rats were fed either with normal diet (ND) or high calorie diet (HC) for 20 weeks. BW and BP of tail artery were observed biweekly and tetraweekly respectively; serum leptin and fasting insulin (FINS) were detected by enzyme-linked immunoadsordent assay (ELISA) and radioimmunoassay (RIA) respectively. Fasting plasma glucose (FPG) and free fatty acid(FFA) were measured by conventional means. Results BW, abdominal fat weight (AFW), ratio of abdominal fat weight to body weight (RF/W), systolic blood pressure (SBP), diastolic blood pressure (DBP), serum levels of leptin and FINS, FPG, FFA increased in the HD group after 20 weeks diet intervention (P<0.05 or P<0.01). SBP was strongly correlated with BW, leptin, FINS and FFA (P<0.05), DBP was correlated with FFA (r=0.47, P<0.05). In addition, leptin was positively correlated with BW, AFW, RF/W, FINS and FFA (P<0.05 or P<0.01). Conclusion In this study of high calorie-diet induced rats, the gain of BW is accompanied by increased BP. The obese rats have hyperleptinemia, hyperinsulinemia, hyperglycemia and dyslipidemia which may have important effects on the development of obesity-related hypertension. RF/W is the key factor in which affect serum leptin level.
2.Determination of the inhibitory activity of angiotensin-converting enzyme inhibitor captopril by high performance capillary electrophoresis.
Zhi-hong XIN ; Hai-le MA ; Shou-yi WU ; Chun-hua DAI
Acta Pharmaceutica Sinica 2003;38(11):843-845
AIMTo establish a method for determinate of the inhibitory activity of angiotensin-converting enzyme inhibitor captopril by high performance capillary electrophoresis.
METHODSThe characteristic absorptive wavelength of hippuric acid determined by ultraviolet spectrophotometer is 228 nm. The method employed a melted capillary column, 50 mmol.L-1 phosphoric acid (pH 8.3) buffer solution, inject pressure 4.8 kPa, inject time 3 s, separation voltage 20 kV and detection wavelength 228 nm.
RESULTSThe reactant and resultant was separated completed within 7 min. IC50 of captopril was 0.019 mumol.L-1. Captopril is a competitive inhibitor, which was proved by enzyme reaction dynamics.
CONCLUSIONThe method was shown to be accurate, simple and rapid and can be used for determination of the inhibitory activity of captopril.
Angiotensin-Converting Enzyme Inhibitors ; pharmacology ; Captopril ; pharmacology ; Electrophoresis, Capillary ; methods ; Hippurates ; analysis ; Peptidyl-Dipeptidase A ; metabolism
3.Research advances in the gut microbiota and inflammation in obesity.
Zhan-jiang CAO ; Jian-chun YU ; Wei-ming KANG ; Zhi-qiang MA
Acta Academiae Medicinae Sinicae 2013;35(4):462-465
Human gut microbiota plays a key role in the development of obesity. Intestinal flora can regulate energy absorption and nutrition metabolism, increasing the energy harvesting from diet. Alteration of gut flora produces excessive lipopolysaccharide, which, when absorbed into the blood, can induce inflammatory reactions and promote the high-fat diet-associated obesity and metabolic syndrome. Intestinal flora increase visceral fat deposition by lowering the expression of Fiaf in intestinal mucosa. Different immune status also affects the intestinal flora.The gut microbiota is hypothesized to be an environmental factor that contributes to obesity; by interacting with factors such as host and diet, it adjusts the energy metabolism. Antibiotics or probiotics may alter the composition of intestinal microflora and improve the metabolic syndrome, and thus provides new treatment options.
Animals
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Diet, High-Fat
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Gastrointestinal Tract
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microbiology
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Humans
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Inflammation
;
etiology
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Mice
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Obesity
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microbiology
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therapy
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Probiotics
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therapeutic use
4.Iodine nutrition and thyroid diseases.
Lian WU ; Jian-chun YU ; Wei-ming KANG ; Zhi-qiang MA
Acta Academiae Medicinae Sinicae 2013;35(4):363-368
Iodine, an essential component of the hormones produced by the thyroid gland, is widely but unevenly distributed in the earth's environment. Great difference exists in the iodine nutritional status of populations residing in different region. Both iodine deficiency and iodine excess can injure the thyroid gland. Iodine deficiency tigers endemic goiter, cretinism, and hyperthyroidism, while iodine excess can result in high iodine goiter, chronic lymphocytic thyroiditis, iodine-induced hyperthyroidism, and hypothyroidism; also, iodine deficiency or excess may affect the histological type of thyroid cancer. In 1996, China began to implement the universal salt iodization policy, which has basically eliminated the iodine deficiency disorders nationwide; however, it also caused the changes in the spectra of other thyroid diseases including iodine-induced hyperthyroidism, autoimmune thyroid disease, and papillary thyroid carcinoma. Individualized iodine nutritional status assessment for the populations, particularly those with thyroid diseases, will be beneficial.
China
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epidemiology
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Humans
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Iodine
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administration & dosage
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adverse effects
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deficiency
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Sodium Chloride, Dietary
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adverse effects
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Thyroid Diseases
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epidemiology
;
etiology
5.Bariatric surgery for severe obesity: procedures and related issues.
Wei-ming KANG ; Zhi-qiang MA ; Jian-chun YU
Acta Academiae Medicinae Sinicae 2010;32(1):16-19
Bariatric surgery is an effective way to achieve long-term weight reduction in severely obese patients. This article illuminates the indications, procedures, complications, and results of bariatric surgery for severe obesity.
Bariatric Surgery
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methods
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Gastric Bypass
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methods
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Gastroplasty
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methods
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Humans
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Obesity, Morbid
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surgery
6.Therapeutic effect of early applying hydrotherapy with Chinese drugs on children hypoxic ischemic encephalopathy.
Yun-Zhi MA ; Hong-Yin ZHAI ; Chun-Ya SU
Chinese Journal of Integrated Traditional and Western Medicine 2009;29(2):130-132
OBJECTIVETo observe the therapeutic effect of hydrotherapy with Chinese drugs (HT-C) in early intervention on children hypoxic ischemic encephalopathy (HIE).
METHODSHIE children were assigned to the treatment group and the control group, 50 in each, at random depending on the willingness of patients' parents. Both groups received the conventional functional training, according to the "0 -3-year-old early intervention outline", but for the treatment group, HT-C was applied additionally. Indexes for quality of sleep, gross motor function, severity of spasm and intellectual development were observed and compared before and after treatment to assess the therapeutic effects.
RESULTSTherapeutic effect in the treatment group was better than that in the control group in all the indexes observed, showing statistical significance (all P <0.05).
CONCLUSIONEarly intervention of HT-C could improve clinical symptom, promote the functional recovery and intellectual development in children HIE, and also could reduce or prevent the sequelae occurrence of the nervous system in them.
Administration, Cutaneous ; Combined Modality Therapy ; Drugs, Chinese Herbal ; administration & dosage ; Female ; Humans ; Hydrotherapy ; methods ; Hypoxia-Ischemia, Brain ; therapy ; Infant ; Infant, Newborn ; Male ; Massage ; Phytotherapy ; Time Factors
7.Perioperative intervention of tetramethylpyrazine on free skin flap transplantation.
Wen-long MA ; Chun-sheng CHENG ; Zhi-wei ZHAO
Chinese Journal of Integrated Traditional and Western Medicine 2010;30(7):714-716
OBJECTIVETo study the impacts of tetramethylpyrazine (TMP) intervention on hemorheology and blood coagulation before and after free skin flap transplantation, in order to provide new clues of applying Chinese drugs for activating blood circulation and removing stasis in microsurgery.
METHODSSixty patients undergoing free skin flap transplantation were randomly and equally assigned to two groups, the treatment group administered with tetramethylpyrazine, the control group with low molecular dextran, both were treated for 7 days. The survival rate of transplanted flap, hemorrheologic parameters and four blood coagulation associated indices (prothrombin time, thrombin time, activated prothrombin time and fibrinogen) were detected before and after treatment.
RESULTSComparisons of clinical efficacy and hemorrheologic indices showed no significant difference between the two groups (P > 0.05), but TMP showed less impacts on the four blood coagulation associated indices at the 24, 48 and 72 h after operation (P < 0.05).
CONCLUSIONTMP could prevent blood vessel crisis after free skin flap transplantation, so it is valuable in microsurgical clinical application.
Adult ; Female ; Hand Injuries ; drug therapy ; surgery ; Hemorheology ; drug effects ; Humans ; Male ; Microsurgery ; methods ; Middle Aged ; Perioperative Period ; Phytotherapy ; Pyrazines ; therapeutic use ; Surgical Flaps ; transplantation ; Young Adult
8.Recent progress in interferon induced protein GBP1 research.
Zi-Xiang ZHU ; Yang-Chun CAO ; Wei-Jun CAO ; Fan YANG ; Zhi-Yong MA ; Hai-Xue ZHENG
Chinese Journal of Virology 2014;30(4):456-462
Guanylate-binding protein 1 (GBP1) is an interferon induced protein, that belongs to the guany late-binding protein family. GBP1 is widely involved in anti-infection immune responses, anti-tumor activity and various biological reactions. Recent studies have proved that IFN-alpha, IFN-beta, IFN-gamma, IL1alpha, IL1beta, TNF-alpha and LPS can induce GBP1 expression; hence, the diverse biological functions of GBP1 have been gradually deduced and exploited. Many studies have been performed over recent years to understand the exact mechanisms that underlie the anti-infection and anti-tumor properties of GBP1. This review describes the molecular structure, biological activity, anti-infective properties and other functions of GBP1, in order to provide insights into the divergent roles of GBP1 in the regulation of various biological processes.
Animals
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Antineoplastic Agents
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metabolism
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Antiviral Agents
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metabolism
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GTP-Binding Proteins
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chemistry
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genetics
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metabolism
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Humans
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Interferons
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genetics
;
metabolism
9.The Phosphorylation of Focal Adhesion kinase in The Restenosis of Rat's Vein Graft:Modulation by Olmesartan
Ping-Xi XIAO ; Zhi-Jun LIU ; Jing-Guo WU ; Li-Chun WANG ; Jian-Gui HE ; Zhao-Hui PEI ; Hong MA ;
Chinese Journal of Hypertension 2007;0(03):-
Objective To study the expression and phosphorylation of focal adhesion kinase(FAK) in rat's au- tologous vein graft and the olmesartan modulating effect.Methods Autologous external jugular veins were grafted to common carotid arteries in 40 male Sprague Dawley rats.After surgery,rats were randomly assigned to the fol- lowing groups:sham;control;olmesartan treatment(10mg/kg.d by gavage);or physiological saline.The intimal thickness,the I/M in vein grafts was quantitated by HE stain.The expression and phosphorylation of focal adhe- sion kinase were assessed by Western-blotting,PCNA and ?-smooth muscle actin were measured by immunohisto- chemistry.Results Neointimal hyperplasia in control group was characterized by significantly increased intimal thickeness I/M(P
10.Developing Students' Ability to Practice Resulting from Reforme of Experimental Teaching Pattern of Medical Microbiology
You-Tian ZHONG ; Li WANG ; Xiao-Li WANG ; Zhi-Chun LIU ; Shui-Xiang XIE ; Lian-Lan MA ;
Microbiology 1992;0(05):-
To develop Students' Practical Ability according to the teaching requirement and culture aim of preventive medicine major,the teaching plan,teaching content,teaching methods,and experimental check-ing methods were explored and the experimental teaching pattern of medical microbiology adapted to pre-ventive medicine major was constructed.The investigation showed that the experimental teaching pattern helped to cultivate the students' operating ability,thinking of scientific research and ability of aggregate and solving analysis.Moreover,it helped to develop the students' co-operative consciousness and team spirit.It indicated that the new pattern was superior to the traditional experimental teaching.