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1.
Chinese Journal of Medical Genetics ; (6): 1162-1166, 2020.
Article in Chinese | WPRIM | ID: wpr-827719

ABSTRACT

OBJECTIVE@#To explore the genetic etiology of a patient with glycogen accumulation type Ⅰa with gout as the main clinical feature.@*METHODS@#Clinical data of the patient was collected. The patient and her parents were subjected to next generation sequencing (NGS). Suspected pathogenic variation was verified by Sanger sequencing.@*RESULTS@#The patient, a 30-year-old women, mainly manifested hyperuricemia, chronic gouty arthritis, fasting hypoglycemia, hypertriglyceridemia, hyperlactatemia, hepatomegaly, urolithiasis, and gradually developed liver nodules and renal dysfunction. NGS revealed that she has carried c.648G>T (exon 5) and c.260delG (exon 2) compound heterozygous variants of the G6PC gene, which were respectively inherited from her father (phenotypically normal) and mother (with hyperuricemia). The c.260delG variant was unreported previously. Bioinformatic analysis indicated that both variants are pathogenic.@*CONCLUSION@#The compound heterozygous variants of the G6PC gene probably underlay the glycogen storage disease Ⅰa in this patient. G6PC gene mutations should be excluded in young women with hyperuricemia and /or gout.

2.
Pakistan Journal of Medical Sciences. 2018; 34 (3): 621-625
in English | IMEMR | ID: emr-198382

ABSTRACT

Objectives: Erectile dysfunction [ED] is highly prevalent among males, and hypothyroidism is previously reported to be related with ED. However there have been rare studies to investigate the association between subclinical hypothyroidism [SCH] and ED, hence our objective was to fill this gap


Methods: ED patients who visited the Urology Outpatients Clinic were recruited consecutively, and males from the Health Manage Center were included as the controls. Serum thyroid and sexual hormones were estimated, and the International Index of Erectile Function [IIEF-5] questionnaires were evaluated as well. Subjects with normal sexual hormones were included for statistical analysis


Results: One hundred nine ED patients and 32 healthy controls were included in this study. The ratio of SCH and euthyroidism in ED males was 29.36% and 66.06% respectively. The IIEF-5 scores in ED patients with SCH were significantly lower than the controls with euthyroidism [P<0.05]. The serum concentrations of TSH and prolactin were significantly higher and free thyroxine lower in ED patients with SCH when compared with the controls with euthyroidism [all p<0.05], and no significant differences of estradiol and total testosterone were found between those two groups. However the IIEF-5 scores were not significantly different between males with SCH and euthyroidism among ED patients [P>0.05]


Conclusions: SCH is common in ED patients and may be associated with ED, whereas the severity of ED is not related to SCH. Screening for thyroid dysfunction in men presenting with ED is recommended

3.
Journal of Biomedical Engineering ; (6): 597-610, 2013.
Article in Chinese | WPRIM | ID: wpr-352202

ABSTRACT

The data of 1,265 in-patients with diabetic ketosis or ketoacidosis treated in West China Hospital from October 2005 to October 2011 were analyzed retrospectively, and 8 of whom met fulminant type 1 diabetes (F1D) diagnostic criteria. The clinical features of the 8 F1D patients were investigated and compared with other 16 newly diagnosed autoimmune type 1 diabetes (T1D) patients, gender- and age-matched and with acute onset of ketoacidosis. During the six years between 2005 and 2011, the incidence of FID was 6.3 per thousand (8/T265) among all patients with diabetic ketosis or ketoacidosis admitted to the West China Hospital. The averaged age of the patients at onset of F1D was (30. 1 +/- 9. 7) years old, and the duration of diabetes was (4. 0 +/- 2. 4) days. Five of the 8 F1D patients had flu-like symptoms, and 7 had gastrointestinal symptoms. Blood glucose of F1D patients on admission was significantly higher than that of autoimmune T1D patients (P<0. 01), while the glycated hemoglobin (HbAlc) was lower than that of autoimmune T1D patients (P<0. 01). Additionally, fasting and postprandial C-peptide was significantly lower in F1D patients, with more severe acidosis, electrolytes and acid-base disturbances. The data suggest, that, compared with the autoimmune T1D patients, F1D patients have more complicated and more severe clinical manifestation with more severe hyperglycemia, more significant insulin deficiency and more obvious fluid electrolytes and acid-base disturbances. However, the sensitivity and the specificity of the diagnostic criteria of F1D are still needed to be improved for the Chinese people, so more multi-center and large-scale clinical trials should be conducted in the future.


Subject(s)
Adult , Humans , Young Adult , Autoantibodies , Blood , China , Epidemiology , Diabetes Mellitus, Type 1 , Classification , Diagnosis , Epidemiology , Diabetic Ketoacidosis , Hyperglycemia , Epidemiology , Allergy and Immunology , Incidence , Retrospective Studies
4.
Chinese Journal of Endocrinology and Metabolism ; (12): 820-823, 2013.
Article in Chinese | WPRIM | ID: wpr-442882

ABSTRACT

Type 2 diabetic patients are usually accompanied by dyslipidemia.The cardiovascular residual risk is still high in these patients,even with glycemia,blood pressure,and plasma lipids well controlled.In this review,the relationship of plasma lipids and changes in lipoprotein particles with cardiovascular risk is discussed.

5.
Journal of Biomedical Engineering ; (6): 368-374, 2013.
Article in Chinese | WPRIM | ID: wpr-234646

ABSTRACT

This study was aimed to observe if the lipid profiles, apoprotein B100 (ApoB100), ApoAI, high density lipoprotein (HDL) and its subclasses could be improved by controlling the blood glucose. Fifty-three patients with newly diagnosed type 2 diabetic were divided into four groups, diet and exercise group (n = 13), continuous subcutaneous insulin infusion (CSII) group (n = 14), multiple daily insulin injection group (MDI, n = 13), and oral hypoglycaemic agents group (n = 13). Fasting blood glucose (FPG), glycated hemoglobin A1c (HbA1c), lipid profiles, ApoB100, ApoAI and HDL subclasses were measured at beginning and a month later. Forty-three patients finished the testing. The levels of FPG, HbA1c, triglyceride (TG), total cholesterol (TC), low density lipoprotein cholesterol (LDL-C), and ApoB100 were decreased significantly (P < 0.05) in all groups, and ApoAI/ApoB100 increased obviously (P < 0.05). Comparatively matured HDL subclasses such as HDL2b were increased (P < 0.05), and comparatively infantile HDL subclasses such as HDL3b were decreased (P < 0.05). Therapy with hyperglycemic agents improved TG, TC, LDL-C, ApoB100, ApoAI/ApoB100, and HDL2b significantly (P < 0.05), but intervention with the diet and exercise group alone did not improve lipid profiles, apolipoproteins, and HDL subclasses (P > 0.05). Meanwhile, therapy with insulin intensive therapy (MDI, CSII) group had the most powerful effect on decreasing ApoB100 concentration (P < 0.05). The results suggested that lipid profiles, apolipoproteins, and quantity and quality of HDL subclasses might be improved by blood glucose controlling.


Subject(s)
Adult , Aged , Female , Humans , Male , Middle Aged , Apolipoprotein A-I , Blood , Apolipoprotein B-100 , Blood , Blood Glucose , Metabolism , Cholesterol, HDL , Blood , Classification , Diabetes Mellitus, Type 2 , Blood , Lipids , Blood
6.
Diabetes & Metabolism Journal ; : 81-82, 2013.
Article in English | WPRIM | ID: wpr-38288

ABSTRACT

No abstract available.


Subject(s)
Thiazolidinediones , Urinary Bladder , Urinary Bladder Neoplasms
7.
Chinese Journal of Endocrinology and Metabolism ; (12): 85-88, 2012.
Article in Chinese | WPRIM | ID: wpr-417731

ABSTRACT

Diabetes mellitus impacts patient survival and quality of life mainly due to its acute and chronic complications.Pancreas transplantation may restore normoglycemia and reduce the complication of insulin-dependent diabetes,thus improving the quality of life and prolonging patient's survival.Although pancreas transplantation requires major surgery and life-long immunosuppression therapy,it currently remains the gold stand for patients with type 1 diabetes mellitus,who do not respond to conventional therapy.Meanwhile,potential of the islet transplantation,insulin-producing cells replacement therapy,and artificial pancreas as the alternative to pancreas transplantation are under investigation.

8.
Chinese Journal of Endocrinology and Metabolism ; (12): 979-983, 2012.
Article in Chinese | WPRIM | ID: wpr-430361

ABSTRACT

Objective To analyze the efficacy and safety of glimepiride treatment as initial monotherapy in newly diagnosed patients with type 2 diabetes mellitus (T2DM).Methods This was a subgroup analysis of the GREAT study,which investigated the efficacy and safety of glimepiride as initial monotherapy in Chinese patients with T2DM.This analysis was performed in 209 patients with disease duration less than 6 months and never received any anti-diabetic drugs.The change of HbA1C,fasting plasm glucose (FPG),2 h postprandial blood glucose (2hPPG),homeostasis model assessment for β-cell function index (HOMA-β),homeostasis model assessment for insulin-resistance index(HOMA-IR),the percentage of patients with HbA1C < 7.0% at endpoint and the incidence of hypoglycemia were evaluated after 16-weeks treatment.Results After 16-weeks glimepiride treatment,HbA1C value reduced significantly from baseline to endpoint,the reduction was statistically significant (9.21% ± 1.65% to 6.69%±0.83%,P<0.001),69.7% of the patients achieved HbA1C <7.0% at study endpoint.Glimepiride-treated patients also achieved a significant improvement in FPG [from (10.15 ± 2.13) mmol/L to (7.23 ± 1.50) mmol/L,P<0.001] and 2hPPG [from (17.21 ±4.14) mmol/L to (11.62 ± 3.34) mmol/L].HOMA-β was improved from 17.21± 15.19 [11.62 (2.90,115.8)] to 41.13 ± 44.12 [28.00 (5.1,360.00)],and HOMA-IR was reduced from 2.32± 1.90 [1.76 (0.60,12.80)] to 2.07 ± 1.74 [1.63 (0.4,12.3)].The incidence of all reported symptomatic hypoglycemia was 18.2%,and the incidence of confirmed hypoglycemia was 3.8%.Conclusion This analysis showed that glimepiride treatment as an initial mono-therapy could effectively improve blood glucose control in newly diagnosed patients with T2DM,and the treatment may improve islet β cell function,and the safety profile is reasonably good.

9.
Chinese Journal of Endocrinology and Metabolism ; (12): 773-776, 2012.
Article in Chinese | WPRIM | ID: wpr-427980

ABSTRACT

Amino acids (AA) as substrates of gluconeogenesis could promote endogenous glucose production.Some AA can enhance insulin secretion. Recently,many studies have found that some AA can also activate mammalian target of rapamycin-S6 kinase 1 ( mTOR-S6K1 ) pathway,resulting in maintaining pancreatic β cell function on one hand,and on the other hand,inhibiting insulin signal transduction of insulin-sensitive cells and thus causing insulin resistance.

10.
Journal of Biomedical Engineering ; (6): 547-558, 2011.
Article in Chinese | WPRIM | ID: wpr-359227

ABSTRACT

The present research was aimed to investigate the relationships between the single nueleotide polymorphisms (SNPs) of CACNA1S gene 11 exon and thyrotoxic hypokalemic periodic paralysis (THPP)in the people of Han Nationality in Sichuan China. 100 male subjects were divided into four groups in this study, i.e., 22 patients with THPP, 23 patients with hypokalemic periodic paralysis (HPP), 33 patients with thyrotoxicosis but without hypokalemic periodic paralysis (NTHPP), and 22 healthy (control group) subjects. The sequences of the CACNA1S gene exon 11 polymorphisms, for the four groups respectively, were analysed by the SNPs method with polymerase chain reaction-single strand conformation polymorphism (PCR-SSCP) and DNA direct sequencing. A meta-analysis of three additional studies was also performed. Three SNPs of exon 11 of the CACNA1S gene (C1491T, T1551C, C1564T) were present in all the four groups. The polymorphisms C1491T and T1551C were present in both homozygotes and heterozygotes, while the C1564T polymorphism was present only in heterozygotes. The genotype frequencies of variants at C1491T and T1551C were not significantly associated with TPP (dominant model: P=0.530 and P=0.568; allele frequency model: P=0.563 and P=0.568). A Meta-analysis yielded combined odds ratio (OR) for TPP of 2. 12 (95% CI: 0.80-5.60) at C1491T, 2.90 (95% CI: 0.71-11.78) at T1551C, and 1.61 (95% CI: 0.36-7.26) at C1564T with the dominant model. These results suggested that three SNPs of CACNA1S gene exon 11 definitely could exist but could not be associated with TPP people of Han Nationality in Sichuan.


Subject(s)
Adult , Humans , Male , Base Sequence , Calcium Channels , Genetics , China , Ethnology , Chromosomes, Human, Pair 11 , Genetics , Exons , Hypokalemic Periodic Paralysis , Genetics , Molecular Sequence Data , Polymorphism, Single Nucleotide , Thyrotoxicosis , Genetics
11.
Chinese Journal of Endocrinology and Metabolism ; (12): 后插1-后插3, 2011.
Article in Chinese | WPRIM | ID: wpr-597874

ABSTRACT

Impaired eady phase insulin secretion is an important reason for leading to postprandial hyperglycemia.Nateglinide is a rapid-acting insulin secretagogue,which reduces postprandial blood glucose of type 2diabetic patient by restoring early phase insulin secretion.The efficacy and safety have been fully verified by clinical administration and it is more widely used to treat type 2 diabetic patients.Both sulfonylureas and glinides were named insulin secretagogue agents and regarded as alternative first-line drugs in the 2010 Chinese Guideline for treatment of type 2 diabetes.AACE/ACE Consensus statement claimed that glinides would be one of the important choices after metformin.In order to further guide the clinical application of nateglinide,16 national specialists in the field of endocrinology and metabolism of China discussed,drafted,and edited this consensus.The current consensus combined clinical evidences at home and abroad.systematically reviewed and summarized tlle results of these studies about nateglinide.It will provide guiding recommendations and reference concerning how to reasonably and effectively use nateglinide in the clinical practice.

12.
Chinese Journal of Internal Medicine ; (12): 23-26, 2011.
Article in Chinese | WPRIM | ID: wpr-384836

ABSTRACT

Objective A multicenter, randomized, controlled and open-labled clinical trial was performed to compare the efficacy and safety of recombinant human insulin injection ( Yousilin R) and treated with Yousilin R versus Novolin R for 12 weeks respectively. Results Compared with baseline,the levels of glycosylated hemoglobin A1c ( HbA1c ) at the end of 12 weeks treatment decreased from 10. 77% to 7. 72% ( P <0. 05 ) in Yousilin R group and from 10. 33% to 7. 62% ( P <0. 05 ) in Novolin R group,2-hour postprandial plasma glucose ( 2hPG ) decreased from 15.49 mmol/L to 9. 72 mmol/L ( P < 0. 05 ) in Yousilin R group and from 15.33 mmol/L to 10. 07 mmol/L( P < 0. 05 ) in Novolin R group, and fasting plasma glucose (FPG) decreased from 10. 90 mmol/L to 7. 31 mmol/L( P <0. 05 ) in Yousilin R group and from 10. 22 mmol/L to 7.21 mmol/L (P <0. 05) in Novolin R group. The changes of HbA1c, 2hPG and FPG from baseline to endpoint in Yousilin R group was similar to those in Novolin R group ( P > 0. 05 ).Furthermore, hypoglycemic events(26. 42% vs 30. 48% ), other adverse events( 13.21%vs 16. 19% ) ,and serious adverse events( 1.89%vs 1.90% )were comparable between Yousilin R and Novolin R groups(P >0. 05 ). Conclusions Yousilin R has similar efficacy, safety and compliance profiles to Novolin R group in the treatment of diabetic patients.

13.
Chinese Journal of Internal Medicine ; (12): 9-13, 2010.
Article in Chinese | WPRIM | ID: wpr-391543

ABSTRACT

Objective To investigate the effects of early intensive therapy on P cell function and long-term glycemic control in newly diagnosed type 2 diabetic patients with different recruiting fasting plasma glucose (FPG) levels.Methods A total of 382 newly diagnosed type 2 diabetic patients with FPG 7.0-16.7 mmol/L were randomly assigned to therapy with insulin in the form of continuous subcutaneous insulin infusion (CSII) or multiple daily injection (MDI) or oral hypoglycemic agents (OHA, by using gliclazide and/or metformin) for initial rapid correction of hyperglycemia.The treatments were stopped after euglycemia had been maintained for 2 weeks.The patients were followed longitudinally on diet alone for 1 year.Intravenous glucose tolerances tests (IVCTTs) were performed and blood glucose, insulin and proinsulin were measured before and after therapy as well as at 1-year follow-up.Homeostasis model assessment ( HOMA) of β cell function and insulin resistance index ( HOMA-β and HOMA-IR ) were calculated.All the patients were stratified on the recruiting FPG: stratum A (7.0 mmol/L≤ FPG < 11.1 mmol/L) , stratum B (11.1 mmol/L≤ FPG ≤ 16.7 mmol/L).Results More patients in stratum A achieved target glycemic control (94.4% vs 89.8% ) and in shorter time [(5.9 ±3.8)d vs(6.9 ±3.6)d, P <0.05] as compared with those in stratum B.B cell function represented by HOMA-β and acute insulin response ( AIR) improved significantly after intensive interventions in both stratum A and B patients.However, the remission rate at 1 year was significantly higher in stratum A patients (47.8% ) than those in stratum B (35.7%, P < 0.05).The patients treated with insulin (especially with CSII) had higher remission rates and better improvement of AIR at 1 year follow-up irrespective of the recruiting FPG (CSII or MDI vs OHA: 57.1% , 51.8% vs 32.8% in stratum A, P <0.05; 44.4% , 38.7% vs 18.6% in stratum B, P <0.05).Conclusions Compared with OHA, early short time intensive insulin treatment had more favorable outcomes on maintaining AIR and prolonged glycemic remission in newly diagnosed type 2 diabetic patients irrespective of the recruiting FPG levels.

14.
International Journal of Diabetes Mellitus. 2010; 2 (1): 28-31
in English | IMEMR | ID: emr-98499

ABSTRACT

The aim of the study was to investigate the relationship between I27L variant of HNF-loc gene and type 2 diabetes mellitus [T2DM] in an/the oriental population. We recruited 149 T2DM patients and 96 non-diabetes controls from China. The I27L polymorphism in HNF-la gene was detected by PCR-RFLP analysis. A mete-analysis of previously published studies on I27L and T2DM of orient population and our new study was performed. Databases of MEDLINE, CBM, and the Cochrane Library [CD-ROM] were electronically searched from January 1980 to April 2008. Analysis was performed by RevMan 4.2 software which was downloaded from website of Cochrane collaboration. [1]. The genotype distribution of I27L/exonl polymorphism in the HNF-loe gene was in Hardy-Weinberg equilibrium [chi[2] = 2.34, 0.05 < P< 0.1]. The IL, LL genotype frequencies and L allelic frequency were slightly higher in T2DM group than in controls [0.52, 0.14 and 0.40 in T2DM vs. 0.49, 0.08 and 0.33 in controls], but the difference were not statistically significant, which indicated that 27L variant did not increase the risk of T2DM in our small sample Chinese population. [2]. Three published studies concerning the Chinese population, two studies involving the Japanese population and our present study, providing information on a total of 1225 unique subjects, were included in the meta-analysis. The results showed that the 271 variant increased the prevalence of T2DM [OR 1.22, 95% CI 1.03-1.44, p = 0.02]. I27L polymorphism in the HNF-1 alpha gene increases the risk of T2DM in the orient population [Chinese and Japanese]


Subject(s)
Humans , Male , Female , Middle Aged , Aged , Diabetes Mellitus, Type 2 , Polymorphism, Genetic , Genotype , Case-Control Studies , Polymerase Chain Reaction
15.
Journal of Biomedical Engineering ; (6): 1110-1114, 2010.
Article in Chinese | WPRIM | ID: wpr-260928

ABSTRACT

This investigation was directed to the metabolic syndrome and the islet beta-cell secretory function in the first-degree relatives (FDR) of type 2 diabetic patients in Sichuan province. A large cohort study was designed. Totally 1929 subjects were investigated. They were in two groups: FDR group comprising 505 first-degree relatives of type 2 diabetic patients, and Control group comprising 1424 controls without positive family history of Diabetes. Blood pressure, weight, waist, plasma glucose, lipids and insulin were measured. HOMA-IR and HOMA-beta indexes were used to evaluate insulin resistance and beta-cell secretion function. The insulin sensitivity index (ISI) and glucose disposition index (DI) were also used to evaluate insulin resistance. After adjustment for age and sex, HOMA-IR increased, ISI, DI and HOMA-beta decreased in FDR group when compared with controls (P < 0.05). The incidence of co-existed three or more metabolic disorders and metabolic syndrome was higher in FDR group than that in control group (P < 0.05). In FDR group, HOMA-IR increased, HOMA-beta, DI and ISI decreased while the number of co-existing metabolic disorders increased. But when the number of co-existing metabolic disorders > or = 4, HOMA-IR increased no longer and ISI decreased no more. Metabolic disorders occurred more frequently in FDR of diabetic patients than those in individuals without positive family history. As the number of co-existing metabolic disorders increased, the beta-cell secretion function and insulin sensitivity became worse. Our study indicated that it is necessary to keep on monitoring the metabolic index in FDR of type 2 diabetes and provide early preventive interventions.


Subject(s)
Adult , Female , Humans , Male , Middle Aged , China , Epidemiology , Cohort Studies , Diabetes Mellitus, Type 2 , Genetics , Glucose Tolerance Test , Insulin Resistance , Islets of Langerhans , Metabolic Syndrome , Epidemiology , Genetics , Surveys and Questionnaires
16.
Journal of Biomedical Engineering ; (6): 1341-1345, 2010.
Article in Chinese | WPRIM | ID: wpr-260881

ABSTRACT

This investigation was made in regard to the changes of plasma Leptin, Tumor Necrosis Factor-alpha (TNF-alpha) and Neuropeptide Y (NPY) levels and their association with insulin resistance and beta-cell secretion function in normal glucose tolerant first-degree relatives of familial type 2 diabetic pedigrees in Chengdu area. Levels of Leptin, TNF-alpha, NPY and lipids (TG, TC, HDL-C) were determined in 86 type 2 diabetic mellitus (DM) patients, 73 normal glucose tolerant (NGT) first-degree relatives in familial type 2 diabetic pedigrees and 65 normal controls (NC) from non-diabetic families. All of the subjects underwent 75 g oral glucose tolerance test (OGTT). Plasma glucose, immunoreactive insulin (IRI) and true insulin (TI) levels were also determined. Fasting glucose and TI levels were used to calculate homeostasis model assessment-insulin resistance (HOMA-IR) and HOMA-beta cell indexes. After being adjusted for age and body mass index (BMI), the levels of Leptin in DM and NGT first-degree relatives were all significantly higher than that in normal controls (P < 0.05). Type 2 diabetic patients showed significantly elevated TNF-alpha levels than did the normal controls (P < 0.05). Furthermore, diabetic subjects showed significantly higher HOMA-IR and lower HOMA-B levels, compared with those in NGT and NC groups (P < 0.05). No statistically significant difference was found in regard to NPY among three groups. NGT first-degree relatives showed significantly higher levels of TG, fasting IRI, OGTT-2h IRI and HOMA-IR than did the normal controls (P < 0.05). Leptin was positively correlated with age, BMI, waist, A1c, fasting and OGTT-2h glucose, OGTT-2h TI and TNF-alpha in all subjects, and was negatively correlated with HOMA-B in females. Leptin levels were significantly elevated in NGT first-degree relatives, which implied that genetic defects of Leptin may play a role in the development of familial type 2 diabetic pedigrees.


Subject(s)
Adult , Female , Humans , Male , Middle Aged , Case-Control Studies , Diabetes Mellitus, Type 2 , Blood , Genetics , Glucose Tolerance Test , Insulin , Bodily Secretions , Insulin Resistance , Leptin , Blood , Neuropeptide Y , Blood , Pedigree , Tumor Necrosis Factor-alpha , Blood
18.
Journal of Biomedical Engineering ; (6): 1088-1093, 2009.
Article in Chinese | WPRIM | ID: wpr-244685

ABSTRACT

This investigation was made to assess the effect of iron overload on function of pancreatic islet cells in Wistar rats. Sixty-five male rats were randomly divided into four groups: Group A received repeated intraperitoneal (i. p.) injections of ferric nitrilotriacetate (FeNTA); Group B received the equivalent dose of Na2 NTA; Group C received i. p. injection of Diethylenetriaminepentaacetic acid in addition to FeNTA; and Group D rats were untreated controls. Glucose tolerance tests were performed at the beginning, 5th week, and 10th week. Serum iron(SI) and serum ferritin (SF) were measured. The pancreatic tissues were taken for immunohistochemical exam; the levels of Insulin, Glucagon, ss in islets were also evaluated. At the 10th week, the levels of plasma glucose at 2 hours after glucose load in groups A and C were higher than those in groups B and D (P = 0.043); the granules of insulin in beta cells of group A were decreased obviously, the area of islets of group A was smaller than those of other groups (P = 0. 000). Iron overload might influence glycometabolism. And the beta cells' capability to secrete insulin was decreased obviously. Therefore, by way of removing iron, it is possible to protect the rat's glycometabolism to some extent.


Subject(s)
Animals , Male , Rats , Glucose Tolerance Test , Insulin , Bodily Secretions , Insulin-Secreting Cells , Physiology , Bodily Secretions , Iron Overload , Random Allocation , Rats, Wistar
19.
Chinese Journal of Endocrinology and Metabolism ; (12): 178-179, 2008.
Article in Chinese | WPRIM | ID: wpr-401541

ABSTRACT

Components of free fatty acids (FFA) were examined by reverse high performance liquid chromatography in 25 patients with type 2 diabetes and 25 control subjects.The changes in components of FFA were observed before treatment, at 3 months and 1 year after treatment with pioglitazone in type 2 diabetic patients.The serum lauric acid, myristic acid and stearic acid levels were much higher in the diabetic patients than those in control subjects.Pioglitazone could decrease the levels of these fatty acids in the patients with type 2 diabetes mellitus.

20.
Chinese Journal of Endocrinology and Metabolism ; (12): 416-419, 2008.
Article in Chinese | WPRIM | ID: wpr-399026

ABSTRACT

Objective To observe the effects of fenofibrate and pioglitazone on the expressions of PPAR- α, PPAR-γ, and intracellular signaling molecules in pancreatic islets of obese rats induced by high-fat diets. Methods SD obese rat models were established with high-fat diet, and 40 male rats were assigned to 4 groups including high-fat diet (HF group), high-fat diet with fenofibrate (FF group), pioglitazone (FP group) treatment, and control rats with normal diet (NC group). After 8 weeks intervention, immunohistochemistry was performed to evaluate the expressions of various proteins in islets; At the same time, islets mass were scored in tissue slides. Results Islets mass enlarged in HF group. The compositions of islet cells were the same as the control. The expression of insulin was lower in HF group than the control, but after using pioglitazone, less islets mass and more insulin expression were found in FP group. Compared with the control group, expressions of PPAR-α, PPAR-γ protein were reduced in HF group, and the expression of PPAR-α protein increased in FF group, and the expression of PPAR-γ protein was increased in FP group. The levels of NF-кB, p38 mitogen-activated protein kinase (MAPK), ERK1 proteins increased significantly in HF group, the expressions of NF-кB, p38 MAPK decreased in FF and FP groups, and the level of ERK1 decreased only in FP group, the protein level of I-кB showed no difference among control, HF group, and FF groups. Conclusion Fenofibrate and pioglitazone may partially protect islet cells function and improve survival by correcting the disturbance of intracellular signaling molecules.

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