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This study aimed to investigate the intervention effect and mechanism of Xiaoyao Kangai Jieyu Recipe(XKJR) on hip-pocampal microglia and neuronal damage in mice with breast cancer related depression. The mouse model of breast cancer related depression was established by inoculation of 4T1 breast cancer cells in axilla and subcutaneous injection of corticosterone(30 mg·kg~(-1)). The successfully modeled mice were randomly divided into a model group, a positive drug group(capecitabine 60 mg·kg~(-1)+fluoxetine 19.5 mg·kg~(-1)), and XKJR group(19.5 mg·kg~(-1) crude drug), with 6 in each group. Another 6 normal mice were taken as a normal group. The administration groups were given corresponding drugs by gavage, while the normal and model groups were given an equal volume of distilled water, once a day for 21 consecutive days. The depressive behavior of mice was assessed by glucose consumption test, open field test and novelty-suppressed feeding test. Hematoxylin and eosin(HE) staining and tumor suppression rate were used to evaluate the changes of axillary tumors. The mRNA expressions and the relative protein expressions of interleukin-1β(IL-1β), interleukin-18(IL-18), cyclooxyganese-2(COX-2) and glutamyl-prolyl-tRNA synthetase(EPRs) in the hippocampus of mice were determined by quantitative real-time polymerase chain reaction(qRT-PCR) and immunohistochemistry, respectively. Immunofluorescence was performed to detect the mean fluorescence intensity of CD11b, a marker of hippocampal microglia activation. Nissler staining and transmission electron microscopy were employed to observe the morphological changes and the ultramorphological changes of hippocampal neurons, respectively. The experimental results indicated that compared with the normal group, the model group had reduced glucose consumption and lowered number of total activities in open field test(P<0.05, P<0.01), prolonged first feeding latency in no-velty-suppressed feeding test(P<0.01), and significant depression-like behavior; the contents of IL-1β, IL-18, COX-2, and EPRs in hippocampus were increased(P<0.05, P<0.01), with hippocampal microglia activation and obvious neuronal damage. Compared with the model group, the positive drug group and the XKJR group presented an improvement in depressive behaviors, a decrease in the contents of IL-1β, IL-18, COX-2 and EPRs in hippocampus, and an alleviation in the activation of hippocampal microglia and neuronal damage; the tumor suppression rates of positive drug and XKJR were 40.32% and 48.83%, respectively, suggesting a lower tumor growth rate than that of the model group. In summary, XKJR may improve hippocampal microglia activation and neuronal damage in mice with breast cancer related depression through activating COX signaling pathway.
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Camundongos , Animais , Depressão/genética , Interleucina-18 , Ciclo-Oxigenase 2/genética , Hipocampo , Glucose , NeoplasiasRESUMO
Two new ursane triterpenoids along with twelve known compounds were isolated from 80% ethanol extract of Agastache rugosa (Fisch. et. Mey.) O. Kuntze by using silica gel column, MCI column, ODS column and HPLC. The structures of the new compounds were identified as 2α,3α-dihydroxy-24-nor-urs-4(23),12(13)-dien-28-oic acid (1) and 2α,3α-dihydroxy-24-nor-urs-4(23),12(13),20(30) -trien-28-oic acid (2) by HR-ESI-MS, NMR and ECD spectral data, named agasursacid A and agasursacid B. In addition, compounds 3, 4, 6, 8 showed anti-coxsackievirus B3 (CVB3) activities with a IC50 as 4.77, 1.59, 11.11 and 25.87 μmol·L-1, resepectively.
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Based on the CX3C chemokine ligand 1(CX3CL1)-CX3C chemokine receptor 1(CX3CR1) axis, this study explored the potential mechanism by which Zuogui Jiangtang Jieyu Formula(ZGJTJY) improved neuroinflammation and enhanced neuroprotective effect in a rat model of diabetes mellitus complicated with depression(DD). The DD rat model was established by feeding a high-fat diet combined with streptozotocin(STZ) intraperitoneal injection for four weeks and chronic unpredictable mild stress(CUMS) combined with isolated cage rearing for five weeks. The rats were divided into a control group, a model group, a positive control group, an inhibitor group, and a ZGJTJY group. The open field test and forced swimming test were used to assess the depression-like behaviors of the rats. Enzyme-linked immunosorbent assay(ELISA) was performed to measure the expression levels of the pro-inflammatory cytokines interleukin-1β(IL-1β) and tumor necrosis factor-α(TNF-α) in plasma. Immunofluorescence staining was used to detect the expression of ionized calcium-binding adapter molecule 1(Iba1), postsynaptic density protein-95(PSD95), and synapsin-1(SYN1) in the hippocampus. Hematoxylin-eosin(HE) staining, Nissl staining, and TdT-mediated dUTP nick end labeling(TUNEL) fluorescence staining were performed to assess hippocampal neuronal damage. Western blot was used to measure the expression levels of CX3CL1, CX3CR1, A2A adenosine receptor(A2AR), glutamate receptor 2A(NR2A), glutamate receptor 2B(NR2B), and brain-derived neurotrophic factor(BDNF) in the hippocampus. Compared with the model group, the ZGJTJY group showed improved depression-like behaviors in DD rats, enhanced neuroprotective effect, increased expression of PSD95, SYN1, and BDNF(P<0.01), and decreased expression of Iba1, IL-1β, and TNF-α(P<0.01), as well as the expression of CX3CL1, CX3CR1, A2AR, NR2A, and NR2B(P<0.01). These results suggest that ZGJTJY may exert its neuroprotective effect by inhibiting the CX3CL1-CX3CR1 axis and activation of hippocampal microglia, thereby improving neuroinflammation and abnormal activation of N-methyl-D-aspartate receptor(NMDAR) subunits, and ultimately enhancing the expression of synaptic-related proteins PSD95, SYN1, and BDNF in the hippocampus.
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Ratos , Animais , Depressão/tratamento farmacológico , Fator Neurotrófico Derivado do Encéfalo , Fármacos Neuroprotetores , Fator de Necrose Tumoral alfa/metabolismo , Doenças Neuroinflamatórias , Diabetes Mellitus , Receptores de Glutamato , Receptor 1 de Quimiocina CX3C/genéticaRESUMO
Two new labdane diterpenoids were isolated from 95% ethanol extract of the leaves of Callicarpa formosana Rolfe by using silica gel column, MCI column, ODS column and HPLC. Their structures were elucidated by HR-ESI-MS, NMR and ECD spectral data. All of them are new compounds, named 13E-6β-hydroxylabda-8(17),13-dien-15-oic acid (1) and 13E-7α-hydroxylabda-8(17),13-dien-15-oic acid (2). Compounds 1 and 2 were tested for antioxidant activity, and none of them had obvious activity.
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Objective:To observe the effect of conversion from immediate-release tacrolimus (Tac) to extended-release Tac on kidney function in stable kidney transplant recipients.Methods:83 stable kidney transplant recipients who were converted from immediate-release Tac to extended-release Tac in the second people's hospital of Shanxi province from December 2011 to June 2019 were followed up for 12-36 months, and 83 stable kidney transplant recipients who continued to take immediate-release Tac were selected as control group.The changes of kidney function indexes, Tac trough concentration intra-patient variability (IPV) and compliance, the incidence of rejection and the survival rate of grafts and recipients were observed after the conversion from immediate-release Tac to extended-release Tac in stable kidney transplant recipients.Results:The conversion time from immediate-release Tac to extended-release Tac was (42.76±30.50)months after transplantation. At 24 months after conversion, the serum creatinine (SCr) was significantly lower than that before conversion ( P=0.013), and the estimated glomerular filtration rate(eGFR)was significantly higher than that before conversion( P=0.005). In the experimental group , the SCr was significantly lower than that of the control group at 36 months after conversion ( P= 0.017), eGFR was significantly higher than that of the control group ( P=0.038). In the experimental group, the score of Immunosuppressant Therapy Barrier Scale (ITBS) was (20.23±2.89) before conversion and (17.63 ±3.08) after conversion ( P= 0.000). The daily dose of Tac was (2.09 ±0.84) mg before conversion and (2.10 ±0.83) mg after conversion. The trough concentration of Tac before conversion was (7.22 ±2.84) ng/mL, which reduced significantly after conversion. No rejection occurred after conversion, and the recipients/grafts survived healthily during the follow-up period. Conclusions:After conversion from immediate-release Tac to extended-release Tac in stable kidney transplant recipients, the kidney function is stable and better than that of before conversion, the compliance is significantly improved, the IPV of Tac trough concentration is significantly reduced, and long-term use of extended-release Tac has good clinical efficacy and safety.
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BACKGROUND@#Nasopharyngeal carcinoma (NPC) is sensitive to radiotherapy (RT). However, neurocognitive complications such as memory loss and learning and attention deficits emerge in the survivors of NPC who received RT. It remains unclear how radiation affects patient brain function. This pilot study aimed at finding cerebral functional alterations in NPC patients who have received RT.@*METHODS@#From September 2014 to December 2016, 42 individuals, including 22 NPC patients and 20 normal volunteer controls in National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences, and Peking Union Medical College, were recruited in this study. All patients received resting-state functional magnetic resonance imaging scans and neurocognitive tests 1 day before the initiation of RT (baseline) and 1 day after the completion of RT; the 20 normal controls were also subjected to the same scans and tests. The amplitude of the low-frequency fluctuations (ALFF) in blood oxygen level-dependent signals and functional connectivity (FC) were used to characterize cerebral functional changes. Independent t test, paired t test, and analysis of variances were used to obtain statistical significance across groups.@*RESULTS@#After RT, NPC patients showed significantly decreased ALFF values in the calcarine sulcus, lingual gyrus, cuneus, and superior occipital gyrus and showed significantly reduced FC mainly in the default mode network (P < 0.05, corrected by AlphaSim). Relative to the controls, ALFF was decreased in the lingual gyrus, calcarine sulcus, cingulate cortex, medial prefrontal gyrus (P < 0.05, corrected by AlphaSim), and FC reduction was found in multiple cerebellar-cerebral regions, including the cerebellum, parahippocampus, hippocampus, fusiform gyrus, inferior frontal gyrus, inferior occipital gyrus, precuneus, and cingulate cortex (P < 0.001, corrected by AlphaSim).@*CONCLUSIONS@#Cerebral functional alterations occur immediately after RT. This study may provide an explanation for the cognitive deficits in the morphologically normal-appearing brains of NPC patients after RT and may contribute to the understanding of the complex mechanism of RT.
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Background@#Nasopharyngeal carcinoma (NPC) is sensitive to radiotherapy (RT). However, neurocognitive complications such as memory loss and learning and attention deficits emerge in the survivors of NPC who received RT. It remains unclear how radiation affects patient brain function. This pilot study aimed at finding cerebral functional alterations in NPC patients who have received RT.@*Methods@#From September 2014 to December 2016, 42 individuals, including 22 NPC patients and 20 normal volunteer controls in National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences, and Peking Union Medical College, were recruited in this study. All patients received resting-state functional magnetic resonance imaging scans and neurocognitive tests 1 day before the initiation of RT (baseline) and 1 day after the completion of RT; the 20 normal controls were also subjected to the same scans and tests. The amplitude of the low-frequency fluctuations (ALFF) in blood oxygen level-dependent signals and functional connectivity (FC) were used to characterize cerebral functional changes. Independent t test, paired t test, and analysis of variances were used to obtain statistical significance across groups.@*Results@#After RT, NPC patients showed significantly decreased ALFF values in the calcarine sulcus, lingual gyrus, cuneus, and superior occipital gyrus and showed significantly reduced FC mainly in the default mode network (P < 0.05, corrected by AlphaSim). Relative to the controls, ALFF was decreased in the lingual gyrus, calcarine sulcus, cingulate cortex, medial prefrontal gyrus (P < 0.05, corrected by AlphaSim), and FC reduction was found in multiple cerebellar–cerebral regions, including the cerebellum, parahippocampus, hippocampus, fusiform gyrus, inferior frontal gyrus, inferior occipital gyrus, precuneus, and cingulate cortex (P < 0.001, corrected by AlphaSim).@*Conclusions@#Cerebral functional alterations occur immediately after RT. This study may provide an explanation for the cognitive deficits in the morphologically normal-appearing brains of NPC patients after RT and may contribute to the understanding of the complex mechanism of RT.
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The analysis of the relationship between personality and depression can facilitate the development of subclinical preventive measures and clinical treatment schemes. Moreover, the personality is associated with a variety of mental diseases, and there is substantial comorbidity between depression and some other mental diseases. So, to reveal pathological relationships between personality and depression is helpful to understand the etiology of the comorbidity between depression and multiple mental disorders. In this review, we first summarize the empirical researches on the relationship between personality and depression from the aspects of behavior and neural mechanisms, and then discuss the hypothetical model to explain the relationship between personality and depression. In a word, high neuroticism, low extroversion and conscientiousness, and other related traits (rumination, self-criticism, dependency, etc.) have a moderate to strong correlation with depression. Among them, neuroticism is the most concerned. To a certain extent, it can predict the onset of depression and affect the duration and treatment outcome of depression. Other traits, such as positive emotionality/ extroversion and effortful control/responsibility, can moderate the relationship between negative emotionality/neuroticism and depression. And after the onset of depression, the neuroticism may change, but the extroversion does not seem to change.
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Humanos , Comorbidade , Depressão , PersonalidadeRESUMO
The study was designed to establish a 2D UPLC-QTOF method to extrapolate the structure of an unknown substance in carboplatin injection and its relationship with the excipient. By using phenyl-hexyl column (250 mm×4.6 mm, 5 μm) with mobile phase consisting of tetrabutylammonium sulfate buffer (pH 7.5) and acetonitrile in gradient elution mode, an unknown impurity in carboplatin injection was found and quantitatively determined. Then a 2D UPLC-QTOF, HSS T3 column (100 mm×2.1 mm, 1.7 μm) was employed to confirm the molecular weight and the structure of the unknown impurity (electrospray ionization source, positive ion mode, MSE mode) with mobile phase consisting of 0.1% formic acid and acetonitrile. The relationship among impurities, API and excipient was investigated by accelerated stability test with ICP-MS/MS, ICP-AES. Results showed that disodium edetate in the formulation interacted with carboplatin producing an unknown impurity containing platin, and induced the increase of 1,1-cyclobutanedicarboxylic acid. The research should be done on the rationality of the addition of disodium edetate in such injections containing heavy metals.
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Objective To investigate the effect of asymptomatic hyperuricemia after renal transplantation on renal function of the grafts.Methods The follow-up data were retrospectively collected and analyzed in 144 patients with renal transplantation from January 2010 to March 2015.The patients were classified into three groups according to the level of serum uric acid (SUA):group A (normal group),group B (asymptomatic hyperuricernia with average SUA less than or equal to 360 μmol/L after treatment),and group C (asymptomatic hyperuricemia with average SUA greater than 360μmol/L after treatment).The renal function indexes such as serum creatinine (SCr) and estimated glomerular filtration rate (eGFR) were compared among three groups from 12 to 48 months after transplantation.Results The SCr and eGFR showed no significant difference between group A and group B at 12th month (P＞0.05),but ther are superior than Group Ⅲ (P＜0.05).Conclusion After renal transplantation,asymptomatic hyperuricemia can lead to impaired renal function,and there are no significant differences in renal function between renal transplant recipients with normal SUA levels after treatment and those without hyperuricemia.
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AIM:To measure the transverse diameter of nasolacrimal duct in patients with nasolacrimal duct obstruction,and to analyze the difference of the transverse diameter of the upper,middle and lower nasal nasolacrimal ducts between the diseased eyes and the normal eyes,between the male and the female eyes,and of different ages and sexes and then explore the correlation between the diameter of nasolacrimal duct and nasolacrimal duct obstruction based on computed tomography (CT) dacryocystography.METHODS:From April 2014 to January 2017 in Chengdu University of Traditional Chinese Medicine Affiliated Hospital of ophthalmology in tears or pus for complaints,diagnosis of nasolacrimal duct obstruction in 152 patients (179 sick eyes,125 normal eyes).Among them 25 cases were male (sick eyes 28 eyes,normal eye 22 eyes),127 cases were female (sick eves 151 eyes,normal eyes 103 eyes),age from 4 to 87 years old,mean age 53.44±16.06 years old.All patients with perfusion of 30％ iohexol injection in lacrimal passages,and immediately examined with CT scan,upload CT images on PACS workstation for 3D reconstruction of nasolacrimal duct,oblique coronal of nasolacrimal duct and its adjacent structure were observed.We measured and analyzed the transverse diameters of the upper,middle and lower nasal nasolacrimal ducts between men and women,diseased eyes and non diseased eyes,and between the diseased eyes of different age groups.RESULTS:The transverse diameter of the upper,middle and lower nasal nasolacrimal duct was no significant difference between the diseased eye and the normal eye,between the male and female diseased eyes,and between the diseased eyes of different age groups (P＞0.05).The transverse diameters of the upper,middle and lower nasolacrimal ducts were significantly different between the diseased eyes and the normal eyes (P＜0.001),and the transverse diameter of the middle mouth was the smallest.CONCLUSION:Transverse diameter of bony nasolacrimal duct is not a risk factor for nasolacrimal duct obstruction.
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Objective To observe the effects of modifiedDanshen Decoction on spermidine/spermine acetyltransferase (SSAT) /polyamine pathways of SD rats with IRI; To investigate its protective mechanism. Methods The model of IRI was established by ligating left anterior descending coronary artery for 30 min followed by reperfusion for 90 min. The SD rats were randomly divided into the control group, sham-operation group, model group and modifiedDanshen Decoction group, with 10 rats in each group. The myocardial infarction size was measured by using TTC staining. The contents of SSAT were measured by ELISA. The SSAT mRNA and SSAT protein expression level were detected with real-time fluorescent quantitative PCR method and Western blot, respectively. The contents of polyamines (putrescine, spermidine, spermine) in cardiac tissue were detected by HPLC. Results Compared with sham-operation group, the myocardial infarction size, the SSAT content, the SSAT mRNA and SSAT protein expression levels of model group increased significantly, the contents of polyamines decreased significantly, with statistical significance (P<0.01); Compared with model group, the myocardial infarction size of modifiedDanshen Decoction group was significantly reduced, while the SSAT content and SSAT mRNA and protein expression level decreased significantly, the contents of polyamines increased, with statistical significance (P<0.05, P<0.01).ConclusionModifiedDanshen Decoction can adjust the SSAT polyamine pathways and increase polyamine content in cardiomyocytes, and thus play a role of protection of myocardial ischemia-reperfusion injury.
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Objective To observe the effect of cluster needling at scalp acupoints plus paraffin therapy on motor function in cerebral palsy patients.Method Forty eligible patients with spastic cerebral palsy were randomized into a control group and an experimental group, 20 cases in each group. The control group was intervened by cluster needling with long-time retaining of the needles plus Uyeda's approach and conventional rehabilitation trainings specifically for spastic cerebral palsy; the experimental group was intervened by paraffin therapy in addition to the treatment given to the control group. The interventions were conducted once a day, for a total of 8 weeks. The Gross Motor Function Measure-88 (GMFM-88) and Modified Ashworth Scale (MAS) were adopted to evaluate the motor function before and after the treatment.Result The GMFM-88 scores were significantly changed after the treatment in both groups (P0.05); there was a significant difference in comparing the MAS score between the two groups after the intervention (P<0.05).Conclusion On the basis of conventional rehabilitation trainings, cluster needling at scalp acupoints plus paraffin therapy can produce a significant efficacy in improving the muscular tension and motor function, and benefit the development of cerebral palsy patients.
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Objective: To investigate the influencing factors of sulfated modification of Bupleurum chinense polysaccharides (BCP),and to elucidate the possible mechanism of improving the antioxidant ability of sulfated BCP (S-BCP).Methods:BCP was sulfated by chlorosulfonic acid-pyridine method.The degree of substitution (DS)of S-BCP was observed by adjusting the volume ratios of chlorosulfonic acid to pyridine (1:2,1:4,and 1:8).The structures of BCP and S-BCP were analyzed by infrared (IR)spectroscopy,the morphology of BCP and S-BCP were observed under scanning electron microscopy (SEM).The antioxidant model was established by using 1, 1-diphenyl-2-picrylhydrazyl (DPPH)free radical scavenging.The experiment was divided into positive control group,BCP group and S-BCP group,and the scavenging rates of DPPH free radical in various groups were compared. Results:When the volume ratio of chlorosulfonic acid to pyridine was 1 : 4,the reaction time was 2 h and the reaction temperature was 60 ℃,the maximum sulfur content percentage of S-BCP was 18.62% and the DS was the highest (DS = 2.32 ).Compared with BCP group, the scavenging rate of DPPH free radical of S-BCP was significantly increased (P <0.05).Conclusion:The volume ratio of chlorosulfonic acid to pyridine can affect the DS of S-BCP.The sulfated modification can increase the anti-oxidant capacity of BCP by changing its physic-chemical characters and spatial conformation.
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Objective To explore the changes of mineral and bone metabolism before and after renal transplantation as well as the effect of preoperative parathyroid hormone (PTH) level on postoperative mineral and bone metabolism.Methods In this retrospective analysis,we recruited 82 cases of renal transplant recipients with normal renal function and receiving kidney transplantation in our hospital from January 2011 to January 2015.All of these patients had intact PTH (iPTH) level ＞300 pg/mL.We chose 26 cases of recipients whose preoperative iPTH was more than or equal to 800 pg/mL as very high PTH group,and 56 cases of recipients whose preoperative iPTH was between 301-799 pg/mL as high PTH group.We monitored and performed analysis of the total serum calcium (Ca),serum inorganic phosphorus (P),25-(hydroxyl) vitamin D3 (25 OHD),serum alkaline phosphatase (ALP),Beta C-terminal telopeptide (β-CTX),N-terminal/midregion (N-MID) pre-and 1 month,4 months,1 year,2 years,3 years post-kidney transplantation.Results Serum total calcium in the two groups was gradually increased,returned to normal range 1 month post-transplantation and reached the plateau 4 months post-transplantation.The incidence of hypercalcemia in very high PTH group was statistically significantly higher than in high PTH group.Serum phosphorus in the two groups showed a trend of gradual decline after renal transplantation,and returned to the normal range 1 month post-transplantation.The serum phosphorus level in very high PTH group reached the plateau 4 months post-transplantation,and that in high PTH group 1 month post-transplantation.Compared with high PTH group,very high PTH group has greater The incidence of long-term hypophosphatemia after renal transplantation was significantly higher in very high PTH group then in high PTH group.iPTH,ALP,β-CTX and N-MID in the two groups showed a downward trend after renal transplantation.At first month post-transplantation,iPTH,ALP,β-CTX and N-MID levels were reduced most significantly.The average levels of the three mentioned indicators in very high PTH group were higher than in high PTH group at every time point after surgery with the difference being significant during the early post-transplantation period.The anomalies of iPTH and β-CTX levels persisted to long term after transplantation in very high PTH group.25-OHD levels in these two groups showed rising trend after renal transplantation,reached the plateau 4 months posttransplantation,but failed to achieve the ideal reference level,and no significant difference was found between two groups at any time point monitored.Conclusion The anomalies of mineral and bone metabolism after renal transplantation could persist a long time.Conclusion hyperparathyroidism in the renal transplantation plays an important role in mineral and bone metabolism.Preoperative severe HPT could continue to post-transplantation period and increase the incidence of hyperphosphatemia and hypocalcemia long term after transplantation,which may aggravate bone turnover and this effect can last a long time after transplantation.
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Epigenetics change has been considered to be the most promising new strategy for disease control and prevention. TCM regulates gene expression through epigenetics, participating in pathological and physiological process including cell apoptosis, proliferation, differentiation, cell cycle regulation, immunity, inflammation, and metabolism. This article reviewed the application of DNA methylation, histone modification and the miRNA regulation in TCM research.
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Objective To investigate the relationship between urinary iodine level and thyroid disease.Methods The study used a case-control design.One hundred and nine patients with thyroid disease from the Affiliated Hospital of Shanxi Institute for Endemic Disease Control were selected as case group from 2011 to 2012,and these patients were divided into three groups:Graves's disease (GD) group (n =48),chronic lymphocytic thyroiditis (HT) group(n =34) and thyroid nodules group(n =27).Sixty-two healthy people from the same region were selected as a control group.Urinary iodine was determined using arsenic cerium catalytic spectrophotometry,thyroid autoantibody (TRAb) and thyroid peroxidase antibody (TPOAb) was detected using electrochemiluminescence,while iodine absorption rate was measured using thyroid function analyzer,and thyroid volume was measured using type-B ultrasonic method.The relationship between urinary iodine level and patients with thyroid disease was compared with that of control group.Results Urinary iodine levels of patients with GD,HT,thyroid nodules and control groups were 313.95,375.20,220.20 and 196.50 μg/L,respectively.Urinary iodine levels of patients with GD and HT groups were higher than that of control group(Z =3.238,4.275,all P ＜ 0.0125).Urinary iodine level of patients with HT was higher than that of thyroid nodules(Z =3.762,P ＜ 0.0125).Iodine uptakes of GD,HT,thyroid nodules and control groups were (84.20 ± 16.90)％,(23.51 ± 6.72)％,(28.34 ± 8.02)％ and (29.31 ± 8.41)％; TRAbs of patients with GD,HT,thyroid nodules and control groups were (58.57 ± 20.31)％,(2.54± 1.00)％,(2.98 ± 0.83)％ and (3.01 ± 1.21)％; TPOAbs of patients with GD,HT,thyroid nodules and control groups were (117.03 ± 57.21)％,(251.00 ± 98.20)％,(16.81 ± 9.87)％ and (15.00 ± 7.23)％.Iodine uptake,TRAb and TPOAb of GD group were higher than those of control group(P ＜ 0.05).TPOAb of HT group was higher than that of control group(P ＜ 0.05).Urinary iodine levels of GD group and HT group were positively correlated with TPOAb(correlation coefficient were 0.462,0.478 all P ＜ 0.05).Conclusions Excessive iodine intake is found in patients with GD and HT.Determination of urinary iodine is helpful for individualized iodine supplementation.
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ObjectiveTo investigate the iodine nutritional status of residents in Shanxi province,and to provide a scientific basis for adjustment of control strategies and measures to iodine deficiency disorders (IDD).MethodsIn the 11 cities and 119 counties(cities,districts),except high water iodine townships,9 townships were selected in each county according to their sub-area positions of east,west,south,north and center,4 villages were sampled in each chosen township,and 8 households were selected in each chosen village in every chosen county (cities,districts ) with 9 or more townships.In every chosen county (cities,districts) with 6 to 9 townships,1 township was selected respectively in east,west,south,north and center sub-areas of the township,4 villages were sampled in each chosen township,and 15 households were selected in each chosen village.In the county (cities,districts) with 5 or less townships,all township were selected,4 villages were sampled in each chosen township,and 15 households were selected in each chosen village.Edible salt samples from these households were collected; iodized salt was determined by direct titration.In the 119 counties(cities,districts),1 township was selected,respectively,in east,west,south,north and center sub-areas in each county,and 20 children aged 8 - 10 in each of the selected townships were selected to collect urine samples and urinary iodine was determined by As-Ce catalytic spectrophotometry.Evaluation criteria:median urinary iodine ＜ 100 μg/L was iodine deficiency,100 - 199 μg/L as appropriate,200 - 299 μg/L as more than appropriate,and ≥ 300 μg/L as iodine excess.ResultsMedian iodine of the 34 808 household salt samples was 31.55 mg/kg.The coverage rate of qualified iodized salt was 99.18％(34 521/34 808) and the consumption rate of qualified iodized salt was 97.12％(33 805/ 34 808).In the 11 cities,119 counties(cities,districts),the median of urinary iodine of 11 967 children aged 8 -10 was 244.0 μg/L,of which ＜ 50 μg/L acoounted for 2.6％(312/11 967),50 - 99 μg/L accounted for 6.9％(823/11 967),100- 199 μg/L accounted for 26.3％(3145/11 967),200 - 299 μg/L accounted for 28.7％(3440/11 967),and 300 μg/L or higher accounted for 35.5％(4247/11 967).The medians of urinary iodine in the 9 municipal cities were 200 - 300 μg/L,and other 2 cities were 300 - 400 μg/L At the county level,the medians urinary iodine of children of the 119 counties(cities,districts) were 100 - 199 μg/L that accounted for 15.1％(18/119),200 - 299 μg/L accounted for 63.9％(76/119),and 300 μg/L or higher accounted for 21％(25/119).Conclusions The iodine nutrition level of residents in Shanxi province is more than appropriate.The salt iodine concentration in Shanxi province needs to be reduced,but the space is not wide.
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<p><b>OBJECTIVE</b>To construct a tetracycline-inducible eukaryotic expression vector of rat Smad7.</p><p><b>METHODS</b>The total RNA was extracted from normal rat kidney with Trizol agent. Rat Smad7 cDNA fragment was cloned by RT-PCR, and was inserted into the restriction site between Nhe I and Hind III of the inducible eukaryotic expression vector pBI-L by tetracycline. pBI-L-Smad7 was constructed by digestion and ligation, and detected by restriction endonuclease digestion and sequencing.</p><p><b>RESULTS</b>The recombinant eukaryotic expression vector pBI-L-Smad7 was constructed correctly as confirmed by restriction endonuclease digestion and sequencing. The fragment of pBI-L-Smad7 digested with restriction endonucleases and the sequence of inserted Smad7 cDNA were consistent with the results of theoretical analysis.</p><p><b>CONCLUSION</b>The tetracycline- inducible eukaryotic expression vector of rat Smad7, pBI-L-Smad7, is constructed successfully, which may facilitate further clinical study of Smad7 gene therapy for tissue and organ fibrosis.</p>
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Animais , Ratos , Clonagem Molecular , DNA Complementar , Genética , Células Eucarióticas , Metabolismo , Expressão Gênica , Terapia Genética , Vetores Genéticos , Genética , Ratos Sprague-Dawley , Proteína Smad7 , Genética , Tetraciclina , FarmacologiaRESUMO
<p><b>OBJECTIVE</b>To construct a tetracycline-inducible eukaryotic expression vector containing human hepatocyte growth factor (HGF) cDNA.</p><p><b>METHODS</b>Human HGF cDNA fragment was obtained by PCR from pUC-SRalpha/HGF plasmid and inserted into the restriction site between Mlu I and Sal I of the tetracycline-inducible eukaryotic expression vector pBI-L. pBI-L-HGF was constructed by DNA recombination in vitro, and was identified by restriction endonucleases digestion and sequencing.</p><p><b>RESULTS</b>The fragment of pBI-L-HGF digested with restriction endonucleases well corresponded to expectation, and the sequence of inserted HGF cDNA was correct according to the GenBank.</p><p><b>CONCLUSION</b>The tetracycline-inducible eukaryotic expression vector of human HGF pBI-L-HGF has been constructed successfully, which allows further study of HGF gene therapy with much safety and easy manipulation.</p>