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1.
International Eye Science ; (12): 903-905, 2021.
Article de Chinois | WPRIM | ID: wpr-876023

RÉSUMÉ

@#AIM: To investigate the postoperative visual acuity and ophthalmic complications after phacoemulsification in cataract patients with acquired immunodeficiency syndrome(AIDS). <p>METHODS: We enrolled 47 eyes of 33 patients with AIDS who underwent phacoemulsification and intraocular lens implantation in our department between May 2016 and April 2019. The visual acuity, diopter, intraocular pressure(IOP), anterior chamber cell count(ACCC), and postoperative complications were recorded postoperative 1d, 1wk, 1mo, and 3mo.<p>RESULTS:The postoperative visual acuities, including uncorrected visual acuity(UCVA)and best corrected visual acuity(BCVA)at postoperative 1d, 1wk, 1mo, and 3mo, were significantly better than that of preoperation(<i>P</i><0.05). The ACCC count on the first day after surgery increased as compared with preoperation, but the difference was not significant from the first week after surgery. Furthermore, there was no apparent ophthamolic complications occurred after surgery. <p>CONCLUSION: The phacoemulsification and intraocular lens implantation is a safe and effective surgery for cataract patients with AIDS.

2.
Zhongguo Zhong Yao Za Zhi ; (24): 251-257, 2015.
Article de Chinois | WPRIM | ID: wpr-305313

RÉSUMÉ

In order to compare the differences of 35 Menthae Herba samples collected on the market and at producing areas, the contents of six total terpenoids, the essential oil and chromatographic fingerprints were analyzed, which provided evidences for drawing up the commodity specifications and grading criteria of Menthae Herba. GC-MS method was used to analyze the chemical constituents of 35 different samples. The chromatographic fingerprints obtained by using GC were then evaluated by similarity analysis, hierarchical clustering analysis and principal component analysis. The relativity between the content of six terpenoids and the essential oil were studied. In this study, the chemical profiles of 35 samples from different producing areas had significant disparity. All samples collected in the report could be categorized into four chemical types, L-menthol, pulegone, carvone and L-menthone, but the chemical profiles had no relationship with the areas. The chromatographic fingerprints of the samples from different types were dissimilar, while the different producing areas were difficult to be separated. It was indicated that the content of volatile oil was positively correlated with the content of L-menthol and the sum of six total terpenoids. The content of the essential oil, L-menthol and the sum of six total terpenoids of Menthae Herba were considered as one of the commercial specifications and grading criteria. These results in the research could be helpful to draw up the commercial specification and grading criteria of Menthae Herba from a view of chemical information.


Sujet(s)
Analyse de regroupements , Chromatographie gazeuse-spectrométrie de masse , Mentha , Chimie , Huile essentielle , Analyse en composantes principales , Terpènes
3.
International Eye Science ; (12): 304-306, 2015.
Article de Chinois | WPRIM | ID: wpr-637182

RÉSUMÉ

To observe the diopter after cataract surgery for vision gain in high myopia and its effect on visual outcomes.METHODS: Sixty ( 120 eyes ) high myopia combined with cataract cases received phacoemulsification and intraocular lens implantation in our hospital were retrospective studied. The patients were divided into three groups based on postoperative diopter: -1. 0 ~ -2. 0D (group A), -2. 25~-3. 0D (group B) and -3. 25 ~-4. 0D ( group C ) . The uncorrected distance visual acuity ( UCDVA) , best corrected distant visual acuity ( BCDVA) , uncorrected near visual acuity ( UCNVA ) and questionnaire of Activities of Daily Vision Scale ( ADVS ) were collected to assess the vision gain at 3mo after cataract surgery.RESULTS: At 3mo after surgery, UCDVA of group A was better than that of group B, and UCDVA of group B was better than that of group C. There were no differences in BCDVA among groups. There were significant differences between the three groups' UCNVA, it was best for the group C, followed by the group B, group A was the worst. For questionnaire, no difference was observed in patients' satisfactory for surgical results, but a significant difference was detected in postoperative glasses wearing frequency between groups.CONCLUSlON: For cataract surgery in high myopia combined cataract, postoperative diopter should be calculated based on patients' daily requirements. For patients had not used to wearing glasses and near distant working condition, it's appropriated to reserve a minor degree of myopia. Conversely, for patients require near distant working and received wearing moderate and low hyperopia mirror, higher degree of myopia can be reserved.

4.
Biomed. environ. sci ; Biomed. environ. sci;(12): 186-196, 2014.
Article de Anglais | WPRIM | ID: wpr-270616

RÉSUMÉ

<p><b>OBJECTIVE</b>To investigate whether the antioxidation and the regulation on the Extracellular Regulated Protein Kinases (ERK) signaling pathway are involved in the protective effects of blueberry on central nervous system.</p><p><b>METHODS</b>30 Senescence-accelerated mice prone 8 (SAMP8) mice were divided into three groups and treated with normal diet, blueberry extracts (200 mg/kg•bw/day) and cyaniding-3-O-galactoside (Cy-3-GAL) (50 mg/kg•bw/day) from blueberry for 8 weeks. 10 SAMR1 mice were set as control group. The capacity of spatial memory was assessed by Passive avoidance task and Morris water maze. Histological analyses on hippocampus were completed. Malondialdehyde (MDA) levels, Superoxide Dismutase (SOD) activity and the expression of ERK were detected.</p><p><b>RESULTS</b>Both Cy-3-GAL and blueberry extracts were shown effective functions to relieve cellular injury, improve hippocampal neurons survival and inhibit the pyramidal cell layer damage. Cy-3-GAL and blueberry extracts also increased SOD activity and reduced MDA content in brain tissues and plasma, and increased hippocampal phosphorylated ERK (p-ERK) expression in SAMP8 mice. Further more, the passive avoidance task test showed that both the latency time and the number of errors were improved by Cy-3-GAL treatment, and the Morris Water Maze test showed significant decreases of latency were detected by Cy-3-GAL and blueberry extracts treatment on day 4.</p><p><b>CONCLUSION</b>Blueberry extracts may reverse the declines of cognitive and behavioral function in the ageing process through several pathways, including enhancing the capacity of antioxidation, altering stress signaling. Cy-3-GAL may be an important active ingredient for these biological effects.</p>


Sujet(s)
Animaux , Souris , Vieillissement , Anthocyanes , Pharmacologie , Apprentissage par évitement , Myrtillier , Chimie , Compléments alimentaires , Galactoside , Pharmacologie , Hippocampe , Métabolisme , Malonaldéhyde , Métabolisme , Apprentissage du labyrinthe , Mémoire , Mitogen-Activated Protein Kinase 3 , Métabolisme , Phosphorylation , Extraits de plantes , Pharmacologie , Superoxide dismutase , Métabolisme
5.
Article de Chinois | WPRIM | ID: wpr-236340

RÉSUMÉ

<p><b>OBJECTIVE</b>Long time exhaled oxygen will induced oxygen toxicity. Some studies had found that different pathology may exised in normobaric and hyperbaric pulmonary oxygen toxicity, and nitric oxide synthase (NOS) may play a role. In this study, we discussed the change of NOS in normobaric and hyperbaric pulmonary oxygen toxicity.</p><p><b>METHODS</b>Sixty male SD rats were randomly divided into 6 groups (n = 10), exposed to 1 ATA (atmosphere absolute), 1.5 ATA, 2 ATA, 2.5 ATA and 3 ATA, 100% oxygen for 56, 20, 10, 8, 6 hours respectively. Rats were exposed to air as control. After exposure, the protein in bronchoalveolar lavage fluid (BALF), the wet/dry weight of lung and the expression of eNOS, nNOS in lung were defined.</p><p><b>RESULTS</b>As compared to air group, the protein in BALF, the wet/dry of lung were significantly elevated in 1.0 ATA group, while these changes were not so obviously in the other groups, and these changes in hyperbaric oxygen group (approximately 1.0 ATA) were significantly decreased as compared with nonnrmobaric oxygen group (1.0 ATA). The expression of nNOS were not changed in normobaric and hyperbaric pulmonary oxygen toxicity, while the expression of eNOS was significantly decreased in 2 ATA group, and significantly elevated in 2.5 ATA and 3 ATA group.</p><p><b>CONCLUSION</b>The expression of eNOS can change when exposed to different pressures of oxygen.</p>


Sujet(s)
Animaux , Mâle , Rats , Modèles animaux de maladie humaine , Poumon , Métabolisme , Nitric oxide synthase type I , Métabolisme , Nitric oxide synthase type III , Métabolisme , Oxygène , Intoxication , Pression , Rat Sprague-Dawley
6.
Zhonghua Yu Fang Yi Xue Za Zhi ; (12): 148-151, 2012.
Article de Chinois | WPRIM | ID: wpr-292504

RÉSUMÉ

<p><b>OBJECTIVE</b>To understand the level of thyroid function and the prevalence of the thyroid diseases of children in high water iodine areas.</p><p><b>METHOD</b>Two primary schools were selected by purposive sampling from Haixing county, Hebei province in April 2010. A total of 371 children were selected from six classes by cluster sampling in the schools. Morning-urine and venous blood (5 ml) were collected to measure the levels of urinary iodine, free triiodothyronine (FT(3)), free thyroxine (FT(4)) and sensitive thyroid-stimulating hormone (sTSH) in serum and to evaluate the iodine status and thyroid function of children.</p><p><b>RESULTS</b>The median urinary iodine of the children was 1032.08 µg/L. Overall, 96.2% (357/371) of the children's urinary iodine were ≥ 300 µg/L and 68.5% (254/371) were ≥ 800 µg/L. The level of FT(3) and FT(4) were (6.28 ± 0.81) pmol/L and (16.37 ± 2.72) pmol/L, respectively. The median of sTSH was 4.01 mU/L. The FT(4) among boys ((16.63 ± 2.60) pmol/L) was significantly higher than that among girls ((15.99 ± 2.85) pmol/L) (P < 0.05). Overall, 44 subjects were diagnosed as thyroid disease (11.9%), 25 were subclinical hypothyroidism (57% of the total patients), 4 were hypothyroidism (9%), 10 were hyperthyroidism (23%) and 5 were subclinical hyperthyroidism (11%). In the urinary iodine of 200 - 799 µg/L, the prevalence of thyroid disease and hypothyroidism were 6.3% (7/111) and 14.6% (27/254), respectively. When urinary iodine ≥ 800 µg/L, the prevalence of thyroid diseases and hypothyroidism were 3.6% (4/111) and 8.3% (21/254), respectively.</p><p><b>CONCLUSION</b>Most of the children in high water iodine areas had excessive iodine intake. Levels of the children's thyroid hormone were within the normal range. The prevalence of thyroid disease were high, in these areas and the thyroid disease were mainly the subclinical hypothyroidism.</p>


Sujet(s)
Adolescent , Enfant , Femelle , Humains , Mâle , Chine , Épidémiologie , Hypothyroïdie , Épidémiologie , Iode , Urine , Prévalence , Tests de la fonction thyroïdienne , Eau , Chimie
7.
Zhonghua Yu Fang Yi Xue Za Zhi ; (12): 225-227, 2012.
Article de Chinois | WPRIM | ID: wpr-292493

RÉSUMÉ

<p><b>OBJECTIVE</b>To reveal the iodine status of pregnant women and its impact on thyroid function of neonates in high iodine area.</p><p><b>METHODS</b>A total of 210 pregnant women were chosen from a hospital in Haixing county, Hebei province. Pregnant women's random urinary and neonates' cord blood were collected. The urinary iodine concentration (UIC) was examined by arsenic-cerium catalytic spectrophotometry. The levels of free triiodothyronine (FT3), free thyroxine (FT4) and sensitive thyroid-stimulating hormone (sTSH) in serum were measured by chemiluminescence.</p><p><b>RESULTS</b>The age of 210 pregnant women was (27.69 +/- 4.73) years old, whose urinary iodine median (inter-quartile range ) was 1240.70 (1292.68) microg/L. 84.3% (177/210) of the pregnant women had excessive iodine intake (UIC > or = 500 microg/L), 13.8% (29/210) had more than adequate iodine intake( UIC within 250 - 499 microg/L), 0.5% (1/210) had adequate iodine intake (UIC within 150 - 249 microg/L) and 1.4% (3/210) had insufficient iodine intake (UIC < 150 microg/L). The average serum level of FT3, FT4 in neonates were (2.93 +/- 0.59), (15.03 +/- 1.92) pmol/L, respectively. The median (inter-quartile range) of serum sTSH in neonates were 7.33 (5.59) mU/L 78.1% (164/210) of the neonates' serum TSH were beyond 5 mU/L. There were no correlation between pregnant women's urinary iodine level and neonates' serum FT3 and sTSH level (P > 0.05), but there was a positive correlation between pregnant women's urinary iodine level and neonates' serum FT4 level (P < 0.01). Serum FT4 level of the neonates with whose mothers had insufficient iodine intake ((12.99 +/- 1.10) pmol/L) were statistically lower than those with their mothers had excessive iodine intake (15.16 +/- 1.83) pmol/L) (P < 0.05).</p><p><b>CONCLUSION</b>Most of the pregnant women in high iodine area were excessive for iodine nutrition, but still a few pregnant women had insufficient iodine nutrition. The level of neonates' serum sTSH were relatively high and monitoring of risk of hypothyroidism and subclinical hypothyroidism should be strengthened.</p>


Sujet(s)
Adulte , Femelle , Humains , Nouveau-né , Grossesse , Jeune adulte , Chine , Épidémiologie , Sang foetal , Chimie , Hypothyroïdie , Épidémiologie , Iode , Urine , État nutritionnel , Tests de la fonction thyroïdienne , Glande thyroide , Thyréostimuline , Sang , Thyroxine , Sang , Topographie médicale , Tri-iodothyronine , Sang
8.
Article de Chinois | WPRIM | ID: wpr-642812

RÉSUMÉ

Objective To find out iodine nutritional status of pregnant women in the third trimester and the relationship between pregnant women and their neonates thyroid function in a high iodine area.Methods From April to June 2010,210 copies of fasting morning urine and venous blood,and their neonatal umbilical cord blood samples were collected in Haixing Hospital,Cangzhou city,Hebei province.Urinary iodine was determined by arsenic-cerium catalytic spectrophotometry.The levels of free triiodothyronine(FT3),free thyroxine (FT4) and sensitive thyroid-stimulating hormone (sTSH) in serum were measured by chemiluminescence.Results Median urinary iodine of 210 pregnant women(average age 27.69 ± 4.73 years) in the third trimester was 1240.70 μg/L,84.3%(177/210) of them was in excessive iodine nutrition,and only 0.5%(1/210) of them was in adequate iodine nutrition.The prevalence rate of thyroid diseases was 19.5% (41/210),and the spectrum of diseases were subclinical hypothyroidism(16.2%,34/210),subclinical hyperthyroidism(0.9%,2/210),hypothyroidism(2.4%,5/210) and hyperthyroidism (0,0/210).The number of newborns with sTSH 5 - > 10 mU/L were 104 persons (49.5%); 10 - > 20 mU/L were 44 persons(21.0%),and ≥20 mU/L were 16 persons(7.6%).Of pregnant women suffer from thyroid disease,the ratio(50.0%,24/48 ) of sTSH equal to 10.18 mU/L and > 10 mU/L of their neonates was higher than that of their corresponding non-ill pregnant women(6.78 mU/L,Z =- 2.867,P < 0.05; 22.2%,36/162,x2 =14.000,P < 0.05).There was a positive correlation between neonates' and their mothers' sTSH levels (r =0.278,P < 0.05).There was also a positive correlation between neonates' (sTSH > 10 mU/L) and their mothers' abnormal sTSH levels (r =0.240,P < 0.05).Conclusions Most of the pregnant women in high iodine areas are iodine excess.The level of neonates' sTSH is higher,and it is due to their mothers' abnormal sTSH and suffering from thyroid diseases to some extent.As a result,the monitoring of pregnant women's iodine nutrition and thyroid function and sTSH level of their neonates should be strengthened.

9.
Chinese Journal of Endemiology ; (6): 123-126, 2011.
Article de Chinois | WPRIM | ID: wpr-642793

RÉSUMÉ

Objective To explore the effect of iodine excess on bone metabolism in experimental autoimmune thyroiditis (EAT) rats. Methods We selected 36 female Lewis rats with body weight of (131 ± 15)g,and divided them into 3 groups randomly: control group, EAT group and EAT + high iodine group, assuring 12 rats in every group. These rats were fed fodder with different concentration of iodine(0.9,0.9, 18.0 mg/kg), and rats in EAT group and EAT + high iodine group were immunized with pig thyroglobulin(pTG) and complete Freund's adjuvant(CFA) to create EAT model. After two weeks, the pathological changes of the thyroid tissues were observed,and the serum thyroid autoantibody[thyroglobulin antibody(TGAb) and thyroid microsomal antibody(TMAb)], the thyroid hormone levels[triiodo thyronine(T3) and thyrine(T4)] and some relevant data of bone metabolism[bone gla protein (BGP), tartrate-resistant acid phosphatase (TRAP), C-terminal propeptide of type Ⅰ procollagen (PICP),C-terminal telopeptide of type Ⅰ collagen (ICTP), insulin-like growth factor- 1 ( IGF- 1 ), osteoprotegerin (OPG) and receptor activator of NF-κB ligand (RANKL)] were measured. Results Inflammatory cell infiltration and local follicular structural damage were observed in the thyroid tissues of EAT rats in EAT group and EAT + high iodine group, and the pathological changes of EAT + high iodine group were mainly thyroid follicular expansion and integration. The level of serum TGAb, TMAb, T3 and T4 of EAT rats in EAT group and EAT + high iodine group[ (63.01 ± 12.36)%, (60.62 ± 11.24)%, (3.78 ± 1.43), (125.12 ± 16.00)pmol/L and (75.00 ± 15.44)%,(72.15 ± 15.00)%, (3.69 ± 0.91 ), (149.40 ± 20.67)pmol/L] were higher than those of the control group[ (4.47 ±1.04)%, (5.73 ± 1.01 )%, (0.75 ± 0.12), (76.91 ± 9.30)pmol/L, all P < 0.05], and the level of serum TGAb,TMAb and T4 of EAT rats in EAT + high iodine group were higher than those of the EAT group(all P < 0.05).The level of serum BGP, PICP and IGF- 1 in EAT group[ ( 1.70 ± 0.31 ), ( 11.31 ± 1.52) μg/L, (0.31 ± 0.06 ) mg/L]were lower than those of the control group[ (8.60 ± 0.33), (14.28 ± 3.10)μg/L, (1.16 ± 0.02)mg/L, all P <0.05], and the level of serum TRAP, ICTP, OPG and RANKL[ ( 19.88 ± 3.60)ng/L, (2.43 ± 0.82), (22.36 ± 2.80),( 1.35 ± 0.23 )μg/L] were higher than those of the control group[ ( 14.57 ± 3.56)ng/L, (0.50 ± 0.20), (1.61 ± 0.34),(0.10 ± 0.02)μg/L, all P < 0.05]; compared with EAT group, the level of PCIP and OPG in EAT + high iodine group [ (8.03 ± 1.84), ( 16.80 ± 3.79)μg/L] were obviously decreased(all P < 0.05). Conclusions The reinforcement of differentiation and maturation of osteoblast in the EAT rats results in the increasing of bone resorption. The activity of osteoblast and osteoclast of the EAT rats are inhibited by excessive iodine, showing a low conversion-type osteoporosis.

10.
Zhonghua Yu Fang Yi Xue Za Zhi ; (12): 705-709, 2009.
Article de Chinois | WPRIM | ID: wpr-316111

RÉSUMÉ

<p><b>OBJECTIVE</b>To study the specific binding of the artificial clonal aryl hydrocarbon receptor translocator (ARNT) with the natural aryl hydrocarbon receptor (AhR) and the recolonization by polyclonal antibody. The dose-response relationship with tetrachlo-rodibenzo-dioxin (TCDD) was also studied to develop TCDD detection method and the binding degree related to dose response.</p><p><b>METHODS</b>(1) The target genes including AhR-PAS, AhR-C and ARNT-PAS were amplified by RT-PCR by using the total RNA purified from the liver cells of C57BL/6J mice as templates to construct pGEX-5X1 recombinants. The recombinant plasmids were expressed in E. coli. (2) The rabbits were immuned by the clonal fusion proteins: AhR-PAS, AhR-C to prepare the polyclonal antibody. (3) The natural AhR from the hepatic cytosol of C57BL/6J mice was extracted. The artificial cloning expressed fusion protein:GST-ARNT-PAS and the natural AhR were incubated in different dose of TCDD. The quantity of the heterodimer through affinity adsorption and Western blots were measured.</p><p><b>RESULTS</b>(1) The target proteins including AhR-PAS, AhR-C and ARNT-PAS were successfully cloned and expressed in E. coli. (2) The detection limit of polyclonal antibody AhR-PAS and AhR-C were 5 ng and 1 ng, respectively. (3) The total protein concentration prepared from the liver cells was 60.5 mg/ml. The artificial clonal protein ARNT-PAS could specifically bind to the natural AhR complex with the existence of TCDD. The detection limit of TCDD was 0.25 pmol which was 80 pg approximately.</p><p><b>CONCLUSION</b>A TCDD detection method based on the aryl hydrocarbon receptor system was established and the detection limit might reach pg grade.</p>


Sujet(s)
Animaux , Souris , Lapins , Cellules cultivées , Limite de détection , Extraits hépatiques , Chimie , Souris de lignée C57BL , Dibenzodioxines polychlorées , Récepteurs à hydrocarbure aromatique , Génétique , Métabolisme , RT-PCR
11.
Article de Chinois | WPRIM | ID: wpr-270464

RÉSUMÉ

<p><b>OBJECTIVE</b>To study HaCaT-keratinocyte cell lines, a chosen model of human epidermis in an attempt to analyze the mRNA expression of AhR and TGF-alpha induced by TCDD METHODS: Semi-quantitative reverse transcription PCR-technique was used for assaying the relative levels of AhR and TGF-alpha mRNA of HaCaT-cells during the proliferation period when the cells were cultured for 24 hours.</p><p><b>RESULTS</b>Relative level of the AhR-transcripts (corrected with beta-actin) decreased with the elevated concentration of TCDD and the relevant coefficient between the proliferation rate and concentration was -0.548, and the differences among all groups were significant (F =4.124, P =0.021). The vehicle control was respectively compared with 7 x 10(-10) mol/L (0.0620 +/- 0.0085) and 7 x 10(-9) mol/L (0.0518 +/- 0.0194) group, significantly different from the control group (0.1138 +/- 0.0227) (t = -3.48, P <0.05; t = -4.17, P <0.01), the expression amount being 55% and 45% of the control. Relative levels of TGF-alpha mRNA tended to increase with the elevated concentration with the significant coefficient of 0.695 (P < 0.01), and the differences among all groups were significant (F = 15.789, P =0.000). In two higher concentration group 7 x 10(-10) mol/L (0.1474 +/- 0.0390) and 7 x 10 (-9) mol/L (0.2133 +/- 0.0364), their relative expression amount of TGF-alpha mRNA was 2.6-fold, 3.8-fold of the control group (0.0561 +/- 0.0100) respectively. Further analysis for the relevant relationship between the amounts of the AhR mRNA and TGF- alpha mRNA showed a highly negative correlation, the coefficient being - 0.561 (P <0.05).</p><p><b>CONCLUSIONS</b>TCDD down-regulate the expression of AhR and up-regulate the expression of TGF-alpha. A strong negative correlation between AhR and TGF-alpha expression is found.</p>


Sujet(s)
Humains , Lignée cellulaire , Épiderme , Biologie cellulaire , Expression des gènes , Dibenzodioxines polychlorées , Toxicité , ARN messager , Génétique , Récepteurs à hydrocarbure aromatique , Génétique , RT-PCR , Tests de toxicité , Facteur de croissance transformant alpha , Génétique
12.
Zhonghua laodong weisheng zhiyebing zazhi ; Zhonghua laodong weisheng zhiyebing zazhi;(12): 154-156, 2008.
Article de Chinois | WPRIM | ID: wpr-303986

RÉSUMÉ

<p><b>OBJECTIVE</b>To investigate the role of mitogen-activated protein kinase (MAPK) signal transduction pathway in chloracne.</p><p><b>METHODS</b>Immunohistochemical technique was used to detect the expression of phosphorylated epidermal growth factor receptor (p-EGFR) and p-MAPK proteins in the epithelium of chloracne group and control group.</p><p><b>RESULTS</b>p-EGFR and p-MAPK was found in all chloracne tissues, whereas no expression of p-EGFR and p-MAPK protein was found in control group. In the skin of chloracne patients, p-EGFR was mainly distributed in the membrane and the cytoplasm, especially in the vicinity of membrane; major positive signal of p-MAPK was in core and serosity.</p><p><b>CONCLUSION</b>EGFR and MAPK phosphorylation is found in chloracne tissues. MAPK signal transduction pathway is one important molecular mechanism of chloracne.</p>


Sujet(s)
Adulte , Humains , Mâle , Adulte d'âge moyen , Chloracné , Métabolisme , Système de signalisation des MAP kinases , Physiologie , Mitogen-Activated Protein Kinases , Métabolisme , Maladies professionnelles , Métabolisme , Phosphorylation , Physiologie , Récepteurs ErbB , Métabolisme
13.
Zhonghua Yu Fang Yi Xue Za Zhi ; (12): 640-643, 2008.
Article de Chinois | WPRIM | ID: wpr-352421

RÉSUMÉ

<p><b>OBJECTIVE</b>To study the effect of different selenium intake on the expression of apoptosis protein Fas/FasL in experimental autoimmune thyroiditis (EAT) rats' thyroid with adequate iodine.</p><p><b>METHODS</b>Thirty-two female lewis rats were divided stochastically into 4 groups as C group, M group, Se(+) + M group, Se(-) + M group, respectively, and pretreated with feedstuffs containing different concentrations of selenium (Se(+) + M group 2 mg/kg, C and M group 0.20 mg/kg, Se(-) + M group 0.02 mg/kg, respectively) for two weeks, and immunized the rats with porcine thyroglobulin (pTg) to establish an EAT model. The thyroid gland was sampled, embedded in mineral wax and sliced, and the expression of Fas/FasL was measured with immunohistochemistry.</p><p><b>RESULTS</b>Both the expressions of Fas and FasL of EAT rats were significantly increased as compared with control group. The expression of Fas in rats' thyroid follicular cells with EAT was down-regulated as the increased selenium intake (optical density: 0.059 +/- 0.006), the expression of Fas of Se(+) + M group (0.036 +/- 0.004) was significantly inhibited (q = 11.591, P = 0.000), and expression of Fas was lower in the Se(+) + M group than Se(-) + M group (0.050 +/- 0.005) (q = 7.055 , P = 0.000). Effect of selenium on FasL was not identified.</p><p><b>CONCLUSION</b>Increasing the intake of selenium might decrease the expression of Fas on thyroid follicular cells and restrain the development of EAT.</p>


Sujet(s)
Animaux , Femelle , Rats , Apoptose , Ligand de Fas , Rats de lignée LEW , Sélénium , Pharmacologie , Utilisations thérapeutiques , Glande thyroide , Biologie cellulaire , Métabolisme , Thyroïdite auto-immune , Traitement médicamenteux , Métabolisme
14.
Zhonghua Yu Fang Yi Xue Za Zhi ; (12): 126-129, 2007.
Article de Chinois | WPRIM | ID: wpr-290220

RÉSUMÉ

<p><b>OBJECTIVE</b>To know about content of iodine in foods sold in Tianjing markets presently, and the iodine nutrition conditions in college students. It was also aimed to probe the functions of the iodized salt complement with the dietary iodine intake, and whether the urine iodine could reflect dietary iodine intake.</p><p><b>METHODS</b>278 food samples in markets were collected by a randomly stratified sampling method, while the arsenic-cerium catalytic contact method was used to determine the content in food. The dietary information of students for seven days was recorded, and the urine iodine was determined through the arsenic-cerium catalytic spectrophotometry.</p><p><b>RESULTS</b>The determination of 47 kinds and 278 food samples indicated that the content of iodine within animal foods (7.8 microg/100 g - 30.8 microg/100 g) was higher than that within plant foods (1.8 microg/100 g - 16.1 microg/100 g). The investigation also showed that students who regarded vegetarian food as principle accounted for 70. 19%. The amount of dietary iodine intake among those students, based on the dietary survey, was (111.67 +/- 53.18) microg/d, while supplementary iodine from iodized salt was about (230.27 +/- 45.55) microg/d. Therefore, the total iodine provided from diet would be (341.95 +/- 89.58) microg/d. Modified by urine creatinine, the median of urine iodine was 271.28 microg/gCr, and the urine iodine and dietary iodine intake was found positively related (r(s) = 0.463, P < 0.01).</p><p><b>CONCLUSIONS</b>Regarding the vegetarian food as the principle, most of students investigated are not rich. The dietary iodine intake is lower than RDA (150 microg), but it can be obtained the iodized salt by 230. 27 microg, which is the possible supplement to the shortage from foods.</p>


Sujet(s)
Humains , Chine , Enquêtes sur le régime alimentaire , Iode , État nutritionnel , Chlorure de sodium alimentaire , Étudiants
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