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1.
Zhonghua Fu Chan Ke Za Zhi ; 57(5): 325-331, 2022 May 25.
Artigo em Chinês | MEDLINE | ID: mdl-35658322

RESUMO

Objective: To investigate the value of proteinuria in evaluating the severity of pre-eclampsia (PE) and assessing the maternal and neonatal outcomes of PE. Methods: The clinical records of 265 pregnant women who were diagnosed with PE at Peking Union Medical College Hospital from January 2011 to June 2021 were retrospectively analyzed. According to 24-hour urine protein (24-hUPro) results, pregnant women were divided into two groups: the non-proteinuric group (24-hUPro<0.3 g, n=10) and proteinuric group (24-hUPro≥0.3 g, n=255). The proteinuric group was further divided into 3 subgroups based on proteinuria levels: mild group (0.3 g≤24-hUPro<2.0 g, n=119), moderate group (2.0 g≤24-hUPro<5.0 g, n=59), and severe group (24-hUPro≥5.0 g, n=77). The demographic and clinical data, laboratory indicators, pregnancy complications, maternal and neonatal outcomes were compared between different groups. Results: In proteinuric subgroups, increased proteinuria was associated with earlier onset gestations, higher incidence of headache, peripheral tissue edema, serosal effusion, intrauterine growth restriction, and abnormal umbilical cord blood flow (all P<0.05). There were no significant differences in the incidence of placental abruption, eclampsia and maternal mortality among the three subgroups, but there were significant differences in the incidence of neonatal birth weight and multiple neonatal complications (all P<0.05). Compared with the proteinuric group, the non-proteinuric group showed later onset gestation (median:34.7 vs 37.6 weeks) and gestational age of delivery (median:36.0 vs 38.4 weeks), lower proportion of ocular vascular lesions [56.7% (135/238) vs 2/9], higher birth weight (median: 2 325 vs 2 750 g), and lower rate of neonatal intensive care unit occupancy [54.3%(127/234) vs 1/10;all P<0.05]. Conclusions: The proteinuria plays an important role in assessing the severity of PE and maternal and neonatal outcomes, but it is not the only indicator. The non-proteinuric PE pregnant women might still lead to severe maternal and neonatal outcomes.


Assuntos
Pré-Eclâmpsia , Peso ao Nascer , Feminino , Humanos , Lactente , Recém-Nascido , Placenta , Pré-Eclâmpsia/diagnóstico , Gravidez , Resultado da Gravidez/epidemiologia , Proteinúria/diagnóstico , Estudos Retrospectivos
2.
Zhonghua Yi Xue Za Zhi ; 99(42): 3328-3334, 2019 Nov 12.
Artigo em Chinês | MEDLINE | ID: mdl-31715670

RESUMO

Objective: The authors aim to provide genetic counselling and prenatal gene diagnosis to the families with osteogenesis imperfecta(OI), based on the identification of pathogenetic mutations in large cohort genetic testing. Methods: DNA was extracted from the peripheral blood of parents of the fetuses, and from the villi tissue, amniotic fluid or cord blood of the fetuses using a standard sodium dodecyl sulfate-proteinase K-phenol/chloroform extraction method. PCR combined with Sanger DNA sequencing was performed to validate the pathogenic mutations of 200 fetuses at risk of OI and their parents from 158 families. Allelic analysis of microsatellite markers was applied to exclude the false positive caused by maternal DNA contamination, when both the fetus and the mother harbored the same pathogenic genotype. Results: A total of 83 affected fetuses (83/200, 41.5%) and 12 (12/200, 6.0%) recessive carriers were identified among the 200 fetuses. The 83 affected fetuses included 78 heterozygotes (45 of COL1A1, 32 of COL1A2, one of IFITM5), and 5 compound heterozygotes or homozygotes of recessive OI (two of FKBP10, one of SEC24D, one of WNT1 and one of CRTAP); The 12 recessive carriers included 7 of WNT1, 4 of SERPINF1 and one of SERPINH1. Maternal DNA contamination was excluded from the genomic DNA samples of OI fetuses when their mother with the same affected genotypes. Conclusion: In this study, the authors used an optimized gene diagnosis system of OI to perform prenatal genetic diagnosis to 200 fetuses at high risk of OI, and provided precisely genetic counselling to the OI families.


Assuntos
Osteogênese Imperfeita , Colágeno Tipo I , Feminino , Feto , Humanos , Mutação , Gravidez , Diagnóstico Pré-Natal , Proteínas de Ligação a Tacrolimo
3.
J Endocrinol Invest ; 42(5): 549-555, 2019 May.
Artigo em Inglês | MEDLINE | ID: mdl-30284220

RESUMO

PURPOSE: To investigate the effects of metabolic abnormalities, hyperandrogenemia and ovulation induction by clomiphene/acupuncture on liver function parameters among women with polycystic ovary syndrome (PCOS). METHODS: This is a secondary analysis of a randomized controlled trial. All 1000 subjects were diagnosed as PCOS by modified Rotterdam criteria. Liver function parameters, metabolic panel and hormone profile were measured at baseline and after treatment. The relationship between liver parameters with metabolic, hormonal parameters and ovulation induction was examined. RESULTS: PCOS women with metabolic syndrome had higher liver enzyme levels but lower bilirubin and bile acid levels than without. PCOS women with hyperandrogenemia had higher liver enzyme, bilirubin levels than without. Correlation analyses showed that worsening of metabolic parameters was associated with higher liver enzyme levels but lower bilirubin and bile acid levels, while increased androgen levels were associated with higher liver enzyme, bilirubin and bile acid levels. Ovulation induction with clomiphene citrate could decrease bilirubin and bile acid levels, while acupuncture had no obvious effect on liver function. CONCLUSIONS: Among PCOS women, metabolic abnormalities and hyperandrogenemia impaired different liver function parameters. Clomiphene could decrease the bilirubin and bile acid levels while acupuncture had no obvious effect on liver function.


Assuntos
Clomifeno/farmacologia , Hiperandrogenismo/complicações , Fígado/fisiopatologia , Síndrome Metabólica/complicações , Indução da Ovulação , Síndrome do Ovário Policístico/tratamento farmacológico , Terapia por Acupuntura , Alanina Transaminase/metabolismo , Aspartato Aminotransferases/metabolismo , Bilirrubina/metabolismo , Biomarcadores/metabolismo , Estudos de Casos e Controles , Feminino , Fármacos para a Fertilidade Feminina/farmacologia , Seguimentos , Humanos , Fígado/efeitos dos fármacos , Fígado/metabolismo , Testes de Função Hepática , Síndrome do Ovário Policístico/etiologia , Síndrome do Ovário Policístico/patologia , Prognóstico , Estudos Prospectivos
4.
Zhonghua Yu Fang Yi Xue Za Zhi ; 52(11): 1158-1163, 2018 Nov 06.
Artigo em Chinês | MEDLINE | ID: mdl-30419701

RESUMO

Objectives: To explore the expression regulation of type 1 and type 2 (Th1 and Th2) cytokines from serum of coal miners and the evaluation in surveillance of coal workers' pneumoconiosis, 630 coal miners were studied. Methods: A total of 90 male patients diagnosed as coal workers' pneumoconiosis (CWP) in a institute for occupational health and 19 male workers newly diagnosed as CWP patients was chosen as CWP group with simple random sampling method from a coal mine group from January 2013 to December in 2015. 180 male coal miners with abnormal but not diagnosed as CWP were selected as CWP suspected group with simple random sampling methods, meanwhile 180 male coal miners with normal chest X-ray photograph was as dust-exposed group by 1∶1 matched as age. And 161 healthy males accepted pre-employed examination were selected as control group, CWP suspected group, dust-exposed group and control group called as non-CWP group. According to screening test and diagnosis test, the basic information and occupational history of all subjects were collected, and cytokines including IL-1ß, IL-8, IFN-γ, IL-6 and IL-10 of serum were detected. Receiver operator characteristic (ROC) curve was used to determine the optimal cutoff value of each cytokine. Area under curve (AUC), the validity and reliability were calculated and judged. Results: The average age of control group, dust-exposed group, CWP suspected group and CWP group were (27.4±5.0) , (43.4±10.7) , (48.2±6.2) , (64.7±7.0) years old, respectively. The median level of IL-1ß, IL-8, IFN-γ and IL-6 in cases group (1 638.30, 2 099.49, 815.18,140.32 pg/ml) were higher than that of non-cases group (1 445.57, 1 402.26, 736.38, 95.73 pg/ml) (P<0.05) . The level of IL-8 (1 503.99 pg/ml) in CWP suspected group was higher than that of control group (1 295.67 pg/ml) and dust-exposed group (1 376.94 pg/ml) , but the level of IL-10 (654.08 pg/ml) was lower than that of control group (596.64 pg/ml) . The ratio of IFN-γ/IL-6 ranged from 5 to 8, and the ratio in CWP group (5.87) was lower than that of non-CWP group (7.61) . The IL-6 and IL-8 among the subjects of dust-exposed group in terms of the age distribution of among had reached statistical significance. According to ROC, the cutoff value of IL-1ß, IL-6, IL-8, IL-10 and INF-γ reached 1 582.65, 116.53, 1 791.54, 581.08 and 792.69 pg/ml, respectively. The AUC was 0.668, 0.895, 0.859, 0.716 and 0.637, respectively. It was found that IL-6 and IL-8 could be used as biomarkers in detecting CWP, the sensitivity and specificity was 82.6% and 84.6%, 78.0% and 84.8%, respectively; Youden's index was 0.674 and 0.628 and the consistency rate was 84.3% and 83.7%, while Kappa value was 0.55 and 0.52. Conclusion: There was Type 1 and type 2 cytokine dysregulation in CWP patients. IL-6 and IL-8 can be used as effective biomarkers to forecast lung injury before X-ray changes.


Assuntos
Minas de Carvão , Citocinas/sangue , Doenças Profissionais/diagnóstico , Pneumoconiose/diagnóstico , Vigilância da População/métodos , Adulto , Idoso , Biomarcadores/sangue , Humanos , Masculino , Pessoa de Meia-Idade , Doenças Profissionais/epidemiologia , Pneumoconiose/epidemiologia , Reprodutibilidade dos Testes
5.
Zhonghua Xin Xue Guan Bing Za Zhi ; 46(1): 56-63, 2018 Jan 24.
Artigo em Chinês | MEDLINE | ID: mdl-29374939

RESUMO

Objective: To investigate the impact of blood pressure and age on arterial stiffness in general population. Methods: Participants who took part in 2010, 2012 and 2014 Kailuan health examination were included. Data of brachial ankle pulse wave velocity (baPWV) examination were analyzed. According to the WHO criteria of age, participants were divided into 3 age groups: 18-44 years group (n=11 608), 45-59 years group (n=12 757), above 60 years group (n=5 002). Participants were further divided into hypertension group and non-hypertension group according to the diagnostic criteria for hypertension (2010 Chinese guidelines for the managemengt of hypertension). Multiple linear regression analysis was used to analyze the association between systolic blood pressure (SBP) with baPWV in the total participants and then stratified by age groups. Multivariate logistic regression model was used to analyze the influence of blood pressure on arterial stiffness (baPWV≥1 400 cm/s) of various groups. Results: (1)The baseline characteristics of all participants: 35 350 participants completed 2010, 2012 and 2014 Kailuan examinations and took part in baPWV examination. 2 237 participants without blood pressure measurement values were excluded, 1 569 participants with history of peripheral artery disease were excluded, we also excluded 1 016 participants with history of cardiac-cerebral vascular disease. Data from 29 367 participants were analyzed. The age was (48.0±12.4) years old, 21 305 were males (72.5%). (2) Distribution of baPWV in various age groups: baPWV increased with aging. In non-hypertension population, baPWV in 18-44 years group, 45-59 years group, above 60 years group were as follows: 1 299.3, 1 428.7 and 1 704.6 cm/s, respectively. For hypertension participants, the respective values of baPWV were: 1 498.4, 1 640.7 and 1 921.4 cm/s. BaPWV was significantly higher in hypertension group than non-hypertension group of respective age groups (P<0.05). (3) Multiple linear regression analysis defined risk factors of baPWV: Multivariate linear regression analysis showed that baPWV was positively correlated with SBP(t=39.30, P<0.001), and same results were found in the sub-age groups (t-value was 37.72, 27.30, 9.15, all P<0.001, respectively) after adjustment for other confounding factors, including age, sex, pulse pressure(PP), body mass index (BMI), fasting blood glucose (FBG), total cholesterol (TC), smoking, drinking, physical exercise, antihypertensive medications, lipid-lowering medication. (4) Multivariate logistic regression analysis of baPWV-related factors: After adjustment for other confounding factors, including age, sex, PP, BMI, FBG, TC, smoking, drinking, physical exercise, antihypertensive medication, lipid-lowering medication, multivariate logistic regression analysis showed that risks for increased arterial stiffness in hypertension group were higher than those in non-hypertension group, the OR in participants with hypertension was 2.54 (2.35-2.74) in the total participants, and same results were also found in sub-age groups, the ORs were 3.22(2.86-3.63), 2.48(2.23-2.76), and 1.91(1.42-2.56), respectively, in each sub-age group. Conclusion: SBP is positively related to arterial stiffness in different age groups, and hypertension is a risk factor for increased arterial stiffness in different age groups. Clinical Trial Registry Chinese Clinical Trial Registry, ChiCTR-TNC-11001489.


Assuntos
Anti-Hipertensivos/uso terapêutico , Hipertensão , Rigidez Vascular , Adolescente , Adulto , Tornozelo , Índice Tornozelo-Braço , Povo Asiático , Pressão Sanguínea , Índice de Massa Corporal , Feminino , Humanos , Hipertensão/complicações , Hipertensão/tratamento farmacológico , Lipídeos , Modelos Logísticos , Masculino , Pessoa de Meia-Idade , Análise Multivariada , Análise de Onda de Pulso , Análise de Regressão , Fatores de Risco , Adulto Jovem
6.
Eur Rev Med Pharmacol Sci ; 21(4 Suppl): 50-53, 2017 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-29165765

RESUMO

Neonatal hypoxic-ischemic encephalopathy (HIE) significantly affects neurodevelopment in infants and is also considered as an important cause of neonatal deaths worldwide. Medical research is being focused worldwide for the development of therapeutic avenues but it is still managed by supportive care. The latest studies in the above field have shown the efficacy of prolonged cooling of neonate's head or whole body at the age of 18 months (approx.) in providing relief from the pathological state of HIE. Moreover, hypothermia is the first reported therapeutic modality that proved beneficial for HIE young patients. Further, it acts by decreasing the cerebral metabolism to mitigate neurological outcomes of the pathological state. The present review article would discuss all-important aspects of hyperthermia therapy in the improvement of young patients affected by HIE.


Assuntos
Hipotermia Induzida/métodos , Hipóxia-Isquemia Encefálica/terapia , Humanos , Hipotermia Induzida/efeitos adversos
7.
Fa Yi Xue Za Zhi ; 33(6): 607-610, 2017 Dec.
Artigo em Chinês | MEDLINE | ID: mdl-29441768

RESUMO

OBJECTIVES: To develop a SNP-STR haplotype by consisting of the SNP and STR genetic markers, both of which locate in a haplotype block. To investigate its distribution in Han population from Chengdu, and explore its application in some special cases of paternity testing. METHODS: D18S51, one of the high mutation rate STR markers in combined DNA index system (CODIS), and three SNP loci rs8089331, rs8094489 and rs7236090 in its flanking region, were chosen to establish SNP-STR. Its haplotype was obtained by nested allele-specific polymerase chain reaction, and the relevant distribution of 75 unrelated individuals were investigated in Han population from Chengdu. The SNP-STR haplotype was tentatively applied in duo paternity testing cases with D18S51 incompatibility. RESULTS: The SNP-STR typing method was established and a total of 43 haplotypes were obtained successfully in Han population from Chengdu. Its polymorphism was 0.948 6, and duo paternity testing cases were resolved by this method. CONCLUSIONS: SNP-STR shows high diversity and can be applied in the identifications of some special paternity testing cases.


Assuntos
Repetições de Microssatélites/genética , Paternidade , Polimorfismo Genético , Polimorfismo de Nucleotídeo Único/genética , Alelos , Povo Asiático/genética , China/etnologia , Genética Forense , Frequência do Gene , Genética Populacional , Haplótipos , Humanos , Masculino , Reação em Cadeia da Polimerase , Grupos Populacionais
8.
Zhonghua Fu Chan Ke Za Zhi ; 51(2): 81-6, 2016 Feb.
Artigo em Chinês | MEDLINE | ID: mdl-26917474

RESUMO

OBJECTIVE: To evaluate the efficacy and safety of pelvic arterial embolization (PAE) in women with intractable primary postpartum hemorrhage (PPH). METHODS: Clinical data of 36 cases were analyzed retrospectively in which women underwent PAE for intractable primary PPH in Peking Union Medical College Hospital between Jan 2006 and Jan 2015. The success rate of PAE were measured and possible predictive risk factors associated with treatment failure were analyzed. The complications secondary to PAE were also recorded. RESULTS: (1) The etiology of PPH. Among the 36 cases, 21 patients delivered viginally (Group VD) and 15 received cesarean section (Group CS). The most frequent cause of PPH was uterine atony (72%, 26/36). The less common causes were placental problems (28%, 10/36), genital tract trauma (6%, 2/36) and coagulation defects (3%, 1/36) in turn. Three patients (8%, 3/36) had combined causes. (2) Interventions before PAE. Uterotonic medications were used in all patients. 31 patients received carboprost methylate suppositorites, 27 received carbetocin and 31 received carboprost tromethamine. Besides, 20 patients received one or more surgical interventions before PAE. PAE was performed when these interventions failed. (3) Characteristics of PAE. Altogether 78 arteries were embolized in 36 cases. Embolization of bilateral uterine arteries was performed in 31 cases, right internal iliac artery and bilateral inferior epigastric arteries were embolized in one case. Right internal pudendal artery, bilateral uterine arteries and bilateral internal iliac arteries were embolized in one case. And bilateral uterine arteries, bilateral internal iliac arteries were embolized in one case. In the other 2 cases, bilateral internal iliac arteries were embolized. (4) Efficacy of PAE. The overall technical success rate of PAE was 100%(36/36), while the clinical success rate was 94%(34/36). All patients survived. (5) Complications of PAE. 15 patients were transferred to ICU after PAE for 1 to 7 days. Except self-limited fever, no puncture site hematoma, buttock necrosis or vessel rupture was observed. The effect on menstrual cycle and fertility were followed in 25 patients. 17 (68%, 17/25) reported resumption of normal menses and 8 (32%, 8/25) reported amenorrhea. Three pregnancies after PAE were observed. CONCLUSION: PAE is a safe and effective treatment for intractable primary PPH which can prevent hysterectomy and preserve fertility of patients.


Assuntos
Embolização Terapêutica/métodos , Artéria Ilíaca , Hemorragia Pós-Parto/terapia , Feminino , Fertilidade , Humanos , Histerectomia , Ciclo Menstrual , Pelve , Gravidez , Estudos Retrospectivos , Fatores de Risco , Segurança , Falha de Tratamento , Resultado do Tratamento , Artéria Uterina , Inércia Uterina
9.
Zhonghua Xin Xue Guan Bing Za Zhi ; 44(12): 1047-1051, 2016 Dec 24.
Artigo em Chinês | MEDLINE | ID: mdl-28056237

RESUMO

Objective: To establish the normal and reference values of brachial-ankle pulse wave velocity(baPWV) based on Kailuan study population. Methods: There were 22 622 staffs of Kailuan Group who underwent 2010 to 2015 health check-up and baPWV measurement. Data of 20 622 staffs were analyzed after excluding 2 000 staffs due to incomplete data. Of these, 9 109 normal individuals were selected for final analysis of normal and reference values for baPWV after excluding 8 788 staffs who had myocardial infarction, stroke, diabetes, hypertension history, treated by either anti-hypertensive or lipid-lowering drugs, and 2 725 smoker. Results: (1)Age, height, weight, baPWV, systolic pressure, diastolic blood pressure, mean arterial pressure, pulse pressure, estimated glomerular filtration rate, total cholesterol, triglyceride, high density lipoprotein cholesterol, sensitivity C-reactive protein, fasting blood glucose were significant difference between male and female population.(2) In male population, baPWV (mean(rang of 95%)) were 1 248(933-1 564) cm/s for age<30 years, 1 345(995-1 696) cm/s for 30-39 years, 1 407(1 007-1 807) cm/s for 40-49 years, 1457(987-1 927) cm/s for 50-59 years, 1 589(966-2 213) cm/s for 60-69 years, 1 898(1 018-2 778) cm/s for age≥70 years; in female population, baPWVv(mean(rang of 95%)) were 1 080(815-1 344) cm/s for age<30 years, 1 162(845-1 480) cm/s for 30-39 years, 1 264(911-1 618) cm/s for 40-49 years, 1 386(1 004-1 768) cm/s for 50-59 years, 1 581(967-2 196) cm/s for 60-69 years, 1 874(1 288-2 459) cm/s for age≥70 years. Conclusion: Normal value and rang of baPWV are different in different age and gender among Kailuan study population. Clinical Trail Registry Chinese Clinical Trail Registry, ChiCTR-TNRC-11001489.


Assuntos
Índice Tornozelo-Braço , Adulto , Idoso , Tornozelo , Anti-Hipertensivos , Povo Asiático , Pressão Sanguínea , Proteína C-Reativa , Colesterol , HDL-Colesterol , Feminino , Humanos , Hipertensão , Masculino , Pessoa de Meia-Idade , Valores de Referência , Acidente Vascular Cerebral
10.
Poult Sci ; 90(4): 737-45, 2011 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-21406357

RESUMO

The response of Peking ducks to supplements of Sophy ß-glucan was studied. A total of 160 healthy 1-d-old mixed-sex ducklings were randomly allocated to 3 groups: Sophy ß-glucan (n = 80), bacitracin zinc (n = 40), and control (n = 40), which received the same antibiotics-deficient diet supplemented with 1% ß-glucan, 5% bacitracin zinc, or nothing, respectively. During 2 mo of the study, growth performance, carcass composition, and meat quality of Peking ducks were evaluated. Additionally, a separate immunological study was conducted with a total of 105 healthy male Peking ducks in 7 groups (n = 15) and immunized with different doses of ß-glucan (0, 0.5, 2.5, 12.5, and 62.5 µg/duck) and BSA (200 µg/duck). Blood was taken for detection of anti-BSA-IgG antibody and peripheral blood mononuclear cells proliferation assays. Groups subjected to different dietary treatments showed almost no differences in growth performance and slaughter traits except breast muscle percentage and intestinal length. These 2 indicators were significantly higher in the bacitracin zinc group than in the control and ß-glucan groups (P < 0.05). Similarly, chemical compositions, fatty acids, and amino acids of breast muscle were not significantly influenced by the diet. Ducks immunized with Sophy ß-glucan did not have enhanced level of anti-BSA-IgG antibodies but had significant peripheral blood mononuclear cells proliferation compared with unchallenged ducks (P < 0.01). With an increase in the glucan concentration, the proliferative responses approximately linearly increased. These findings indicate that 1% Sophy glucan did not improve duck growth performance, carcass composition, and meat quality significantly under the conditions of the present experiment and mainly had regulatory or enhancing properties on poultry nonspecific cellular immunity.


Assuntos
Patos/crescimento & desenvolvimento , Músculo Esquelético/efeitos dos fármacos , beta-Glucanas/administração & dosagem , Aminoácidos/metabolismo , Animais , Peso Corporal/efeitos dos fármacos , Suplementos Nutricionais , Patos/imunologia , Patos/metabolismo , Ácidos Graxos/metabolismo , Feminino , Imunoglobulina G/sangue , Masculino , Carne , Músculo Esquelético/crescimento & desenvolvimento , Músculo Esquelético/imunologia , Músculo Esquelético/metabolismo , Distribuição Aleatória , beta-Glucanas/imunologia
11.
Poult Sci ; 88(11): 2415-21, 2009 Nov.
Artigo em Inglês | MEDLINE | ID: mdl-19834094

RESUMO

Ovarian cortical tissues of various ages of chicken were grafted underneath chorioallantoic membrane (CAM) of 6-d-old chicken embryo and the grafts were collected on d 0, 2, 4, 8, or 10. The tissue sections were prepared to examine the development of follicles in grafts and the proliferative ability of follicles was examined by immunohistochemistry analysis of proliferating cell nuclear antigen. The results indicated that the development of follicles in cultured chicken ovarian cortical pieces progressed smoothly and slowly similar to those in vivo, and the environment of chicken embryo was more suitable for the synchronous development of oocyte and follicular cells in the larger follicles. Meanwhile, the synchronous development could be more easily achieved in the chicken ovarian tissues of 12- to 15-wk chicken. Neither oocyte nor granulosa cells but the thecal cells of follicles developed in grafts of 13- to 15-d chicken within 10 d of culturing in ovo, and the CAM can ease follicular atresia in chicken ovarian grafts of 12- to 15-wk chicken. The proliferative performance of follicles in the grafts was not influenced by the environment of chicken embryo. These results indicated that the chicken embryo has the ability to support slow development of primordial and primary follicles in grafted ovarian cortical tissues of chickens of different ages. The CAM system may also prove useful for the study of early follicle development with further information.


Assuntos
Embrião de Galinha , Galinhas/fisiologia , Membrana Corioalantoide/fisiologia , Ovário/fisiologia , Envelhecimento , Animais , Feminino , Regulação da Expressão Gênica/fisiologia , Imuno-Histoquímica , Antígeno Nuclear de Célula em Proliferação/genética , Antígeno Nuclear de Célula em Proliferação/metabolismo , Fatores de Tempo , Técnicas de Cultura de Tecidos
12.
Acta Pharmacol Sin ; 22(8): 731-5, 2001 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-11749847

RESUMO

AIM: To investigate the effect of vascular endothelial growth factor 165 (VEGF165) on sensitivity of endothelial cells to anticancer drugs. METHODS: Human dermal microvessel endothelial cells (HDMEC) were incubated with anticancer drugs in the presence of VEGF165. Survival of endothelial cells was assayed by MTT method. DNA fragments of apoptosis were detected by agarose electrophoresis. Potential mechanisms underlying the effect of VEGF165 on endothelial cells were investigated with RT-PCR and Western blot analysis. RESULTS: VEGF165 induced the multidrug resistance phenotype of HDMEC to a wide variety of anticancer drugs such as epirubicin, cisplatin, etoposide, mytomycin C, vincristine, CPT-11, and taxol in vitro. This protective effect was partly due to the up-regulation of lung drug resistance protein (LRP) and multidrug resistance-associated protein (MRP), as well as the down-regulation of Bax protein induced by VEGF165. CONCLUSION: VEGF165 induced multidrug resistance phenotype of endothelial cells, which implicated the anti-angiogenic effect of anticancer drugs might depend on microenvironment of tumors in vivo.


Assuntos
Antineoplásicos/farmacologia , Camptotecina/análogos & derivados , Resistência a Múltiplos Medicamentos/genética , Resistencia a Medicamentos Antineoplásicos/genética , Endotélio Vascular/citologia , Fator A de Crescimento do Endotélio Vascular/farmacologia , Inibidores da Angiogênese/farmacologia , Camptotecina/farmacologia , Capilares/citologia , Capilares/metabolismo , Endotélio Vascular/metabolismo , Epirubicina/farmacologia , Humanos , Irinotecano , Paclitaxel/farmacologia , Fenótipo , Pele/irrigação sanguínea
13.
Sheng Li Xue Bao ; 53(5): 375-9, 2001 Oct.
Artigo em Chinês | MEDLINE | ID: mdl-11833422

RESUMO

To observe the changes in aldosterone binding activity of kidney cytosols after pathological stress in rats and the regulation, binding capacity (Rt) and apparent dissociation constant (Kd) of aldosterone binding activity of kidney cytosols in normal, low-degree or heavy-degree scalded rats were measured by radioligand binding assay using [3H]aldosterone as the ligand. Changes in Rt and Kd of aldosterone binding activity were observed after injection of anti-rat TNF alpha and IL-1 beta antibodies, alpha-melanocyte-stimulating hormone (alpha-MSH) and KPV peptide (Ac-D-Lys-L-Pro-D-Val). The results indicated that there were two types of aldosterone binding activities in kidney cytosol with different Rt and Kd, and the Rt of heavy-degree scalded rats (Rt1: 22.4 +/- 5.4 fmol/mg pro, Rt2: 196.3 +/- 32.5 fmol/mg pro) was lower than that of the control group (Rt1: 41.6 +/- 7.2 fmol/mg pro, Rt2: 317.6 +/- 70.0 fmol/mg pro) (P < 0.01; P < 0.01); while the Rt of low-degree scalded rats (Rt1: 41.4 +/- 5.0 fmol/mg pro, Rt2: 314.8 +/- 45.7 fmol/mg pro) was not significantly different from that of the control group (P > 0.05; P > 0.05). Injection of anti-rat TNF alpha and IL-1 beta antibodies, alpha-MSH and KPV prevented Rt of aldosterone binding activity from decrease in kidney cytosol of rats with heavy-degree scald. These findings suggest that aldosterone binding activity may be down-regulated in heavy-degree scalded rats, but it may be reversed by injection of anti-rat TNF alpha and IL-1 beta antibodies, alpha-MSH and KPV.


Assuntos
Aldosterona/metabolismo , Queimaduras/metabolismo , Citosol/metabolismo , Rim/metabolismo , Animais , Técnicas In Vitro , Rim/citologia , Masculino , Ratos , Ratos Wistar , Estresse Fisiológico/metabolismo
14.
Yi Chuan Xue Bao ; 27(7): 580-9, 2000.
Artigo em Chinês | MEDLINE | ID: mdl-11051718

RESUMO

The genetic structure and genetic variation of eight beef cattle cross parents populations were analyzed by six microsatellite loci, and heterosis of beef cattle was predicted. On the basis of microsatellite analysis, the effect of 18 cross combinations was estimated by the method of individual animal model BLUP. A new method of molecular quantitative genetics that select best of all cross combination was submitted. The results showed that the combinations with Hereford Limousine and Charolais as paternal parent are better than others in Fengning and Longhua regions; the combinations with Limousine Angus and Hereford as paternal parent are better than others in Zanhuang regions; the combinations with Hereford Limousine and Piemontese as paternal parent are better than others in Funing regions. Effect of three breeds cross is better than two breeds.


Assuntos
Bovinos/genética , Vigor Híbrido , Animais , Repetições de Microssatélites , Modelos Animais
15.
World J Gastroenterol ; 3(3): 177-9, 1997 Sep 15.
Artigo em Inglês | MEDLINE | ID: mdl-27239143

RESUMO

AIM: To investigate the effects of the Yanggan Jieyu (YGJY, nourishing the liver and alleviating mental depression) decoction on the plasma concentrations of fibronectin (FN), fibronectin receptor (FNR), tumor necrosis factor alpha (TNF-α), and the activity of interleukin-1 (IL-1) in patients with cirrhosis. METHODS: Thirty-four cases of decompensated cirrhosis were divided into the YGJY decoction treatment group and the control group (patients received standard treatment). FN, FNR and TNF-α were measured by ELISA and expressed as mg/L (FN, FNR) and ng/L (TNF-α). IL-1 was measured by mice thymocyte proliferation using a ß scintillation counter and was expressed as cpm. RESULTS: In the YGJY decoction treatment group, FN and TNF-α levels increased significantly (P < 0.01 and P < 0.05, respectively), and FNR and IL-1 levels decreased significantly (P < 0.05 and P < 0.05, respectively). In the control group, FN, FNR, TNF-α, and IL-1 levels did not significantly change. CONCLUSION: YGJY decoction could prevent hepatic fibrosis by adjusting the plasma levels of FN, FNR, TNF-α and IL-1, which could mediate cirrhosis formation. This data is of clinical significance.

20.
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