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AIM To investigate the effects of Ginkgo biloba extract on hearing function,cochlear morphology and autophagy-related protein expression in a rat model of presbycusis.METHODS Forty-five rats were randomly divided into the control group,the model group and the low,medium and high dose G.biloba extract groups(10,20 and 30 mg/kg),with 9 rats in each group.The rat model of presbycusis was established by intraperitoneal injection of 500 mg/kg D-galactose(D-gal).Eight weeks after the corresponding administration,the rats had their changes of hearing threshold detected by the auditory brainstem evoked potential(ABR);their morphological changes of cochlear hair cells,stria vascularis(SV)and spiral ganglion cells observed by HE staining;their number of hair cells inside and outside the cochlea detected by immunofluorescence staining;their ultrastructure changes of cochlear hair cells observed by transmission electron microscopy;and their expression of autophagy-related proteins in cochlea tissue detected by Western blot.RESULTS Compared with the control group,the model group displayed increased ABR threshold(P<0.01);more severely damaged inner and outer hair cells,spiral ganglion cells and SV,decreased SV thickness and numbers of spiral ganglion cells,inner and outer hair cells and autophagosomes(P<0.01);decreased protein expressions of Beclin1 and LC3 Ⅱ and ratio of LC3 Ⅱ/LC3 Ⅰ in cochlear tissue(P<0.01),and higher P62 protein expression(P<0.01).Compared with the model group,the medium and high dose G.biloba extract groups shared decreased ABR thresholds(P<0.01);improved morphology of inner and outer hair cells and SV in the cochlea,normalized,morphology of spiral ganglion cells,and increased SV thickness and the numbers of spiral ganglion cells,inner and outer hair cells and autophagosomes(P<0.05,P<0.01);increased protein expressions of Beclin1 and LC3 Ⅱ and the ratio of LC3 Ⅱ/LC3 Ⅰ in the cochlea(P<0.01),and decreased P62 protein expression(P<0.01).CONCLUSION The protective effects G.biloba extract on hearing function and cochlear cells in the rat model of presbycusis may be associated with the up-regulated expression of Beclin1 and LC3 Ⅱ proteins and down-regulated P62 protein expression in cochlear tissues.
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Aim To investigate the mechanism of ligu aged 2 months of the same strain were used as the constilide (LIG) in delaying the senescence of auditory trol (Ctrl) group. Auditory brainstem response test was cortex and treating central presbycusis. Methods used to detect the auditory threshold of mice before and Forty C57BL/6J mice aged 13 months were randomly di after treatment. Levels of serum MDA and activity of vided into ligustilide low-dose(L-LIG) group, ligustil serum SOD were detected to display the level of oxidative ide medium-dose (M-LIG) group, ligustilide high-dose stress. The pathological changes of auditory cortex were (H-LIG) group and aging (Age) group, and 10 mice observed by HE staining. Ferroptosis was observed by
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Objective To investigate the effects of hot spring baths on blood pressure, resting heart rate, cardiovascular function related indicators and physical signs in population with high-normal blood pressure. Methods Residents of typical hot spring areas in Guizhou Province were included as the subjects. According to the epidemiological survey of the research group and the physical examination results before the intervention, combined with the inclusion and exclusion criteria, a total of 217 people with high normal blood pressure were selected as the observation subjects. The intervention of hot spring baths was carried out for four weeks, once time per day, 5 times per week, for 40-50 minutes each time. After the intervention, the blood pressure, resting heart rate and serum levels of creatine kinase(CK), lactate dehydrogenase(LDH), and α-hydroxybutyrate dehydrogenase(α-HBDH)were detected, and the improvement of cardiovascular related signs(palpitation, dizziness/headache, cough/sputum and night sweats)were clinically examined. SPSS 23.0 software was used for statistical analysis. Results Paired t-test results showed that the systolic blood pressure, diastolic blood pressure and resting heart rate of 217 high normal blood pressure subjects were significantly lower after hot spring baths(P < 0.01). Further analysis revealed that the number of people with high normal blood pressure dropped from 217 to 128 after the hot spring baths. Before the intervention, 95 of the 217 people with high-normal blood pressure had resting heart rates between 80 and 90 beats/min, and 35 of them above 90 beats/min. After the intervention, the resting heart rates of those above people decreased to 68 and 14, respectively. Serum levels of cardiovascular related indicators showed that CK, LDH, and α-HBDH levels in people with high-normal blood pressure decreased to some extent after the intervention, and CK level was significantly lower than that before the intervention(P < 0.05). The results of clinical examination showed that hot spring baths had a significant improvement effect on palpitation, dizziness/headache, cough/expectoration, and night sweats in people with high-normal blood pressure. Conclusion The typical hot spring baths in Guizhou Province can reduce the blood pressure and resting heart rate in population with high-normal blood pressure, and improve the cardiovascular function related indicators and physical signs to a certain extent.
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Objective To study the relieving effects of hot spring bath therapy on sleep quality for people with sleep disorders based on data from health bracelets. Methods After health examinations, 311 people with sleep disorders who participated in the bath therapy in five typical hot spring areas in Guizhou Province were selected as the subjects. A four-week hot spring bath therapy was implemented, and the bathing method and the classification of hot springs were the same as the"Overview of study of the physiotherapy efficacy of typical hot springs in Guizhou Province". The daily sleep time at night(minutes), deep sleep ratio(%), light sleep ratio(%)and rapid eye movement ratio(%)for all subjects were collected using the Huawei Honor Band 3 health bracelets. Repeated measures analysis of variance was used to compare the differences in sleep quality indicators of each group at night each week. The effect of three different hot spring bath therapies on the improvement of night sleep quality was evaluated by factor analysis. Results Hot spring bath therapy can increase night sleep time and deep sleep ratio, while reducing light sleep ratio. Compared with the first week, the night sleep time in the following three weeks significantly increased(P < 0.05), especially in the fourth week; the deep sleep ratio during the third and fourth weeks was significantly higher than during the first and second weeks(P < 0.05), but the light sleep ratio was lower than during the first and second weeks(P < 0.05). The rapid eye movement ratio did not change significantly throughout the 4 weeks(P > 0.05). Further classified according to the physiotherapy components of geological hot springs, the results showed that the water temperature type of hot springs can increase night sleep time and reduce light sleep ratio; the warm mineral type of hot springs has a certain regulatory effect on increasing night sleep time, deep sleep ratio and reducing light sleep ratio; the metasilicic acid type of hot springs can improve night sleep quality by increasing night sleep time and deep sleep ratio, while reducing light sleep ratio and rapid eye movement ratio. The factor analysis results suggest that the metasilicic acid type of hot springs is better than the water temperature type and warm mineral type of hot springs in improving night sleep quality. Conclusion Hot spring bath therapy can improve the night sleep quality for people with sleep disorders to varying degrees, and the metasilicic acid type of hot springs is relatively better than other types.
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Objective To understand the influence of hot spring bathing intervention on population's antioxidation functions. Methods Three typical types of hot spring(metasilicic acid type, warm mineral type and temperature type)in Guizhou Province were selected for investigation. According to the inclusion-exclusion criteria, questionnaires and physical examinations results, 421 individuals were selected as observation subjects for hot spring bathing intervention, of which 311 subjects completed 40 to 50 minutes of intervention once a day, 5 days a week, and for 4 weeks. Two physical examinations before and after the intervention were conducted for the 311 subjects. The fasting venous blood samples on the mornings of two physical examinations were collected and the serum was separated. Levels of serum oxidative stress-related parameters including total superoxide dismutase(T-SOD), copper zinc superoxide dismutase(Cu-Zn SOD), glutathione sulfur transferases(GSTs)glutathione peroxidase(GSH-px), sulfhydryl(-SH)and malondialdehyde(MDA)were measured by enzymatical methods. Results The overall comparison showed that compared with before the bathing intervention, the levels of antioxidant enzymes including T-SOD, Cu-Zn SOD, GSTs and GSH-px significantly increased in serum after the intervention(all P < 0.05). There was an increasing trend of serum -SH level after the intervention, but with no statistical differences were seen(P > 0.05). MDA, a product of lipid peroxidation, significantly decreased in serum after the intervention(P < 0.05). The results of classified comparison showed that the effects of different hot spring types on antioxidant enzymes were different. Metasilicic acid type significantly increased the activities of GSTs and GSH-px in serum(all P < 0.05), warm mineral type significantly increased the activities of T-SOD and Cu-Zn SOD in serum(all P < 0.05), and temperature type significantly increased the activities of T-SOD, Cu-Zn SOD and GSTs in serum(all P < 0.05). There were increasing trends of serum -SH levels after bathing intervention of all three hot spring types, but no statistical differences were seen(all P > 0.05). The serum MDA levels decreased significantly after bathing intervention of all three types of hot springs(all P < 0.05). Conclusion Overall, bathing intervention of hot springs can improve the activities of antioxidant enzymes and reduce lipid peroxidation products in population. The results of oxidative stress parameters are slightly different in different types of hot springs. The subjects mainly show the elevation of glutathione related enzyme(GSTs and GSH-px)activities after intervention of metasilicic acid type, the elevation of superoxide dismutase(SOD)activities after intervention of warm mineral type and temperature type, and the decline of lipid peroxidation levels after intervention of all three types. It suggests that hot spring bathing may have certain effects on improving the body's antioxidation functions.
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Purpose To investigate the effect of EPCR on the proliferation and migration, and to explore the molecular mechanism of EPCR affecting the tumor growth and metastasis in human breast cancer cell line MCF-7. Methods MCF-7 cell was transfected with EPCR siRNA and treated with anti-PAR-1 antibody. Then CCK-8 assay was performed to determine the proliferation of MCF-7 cell. Transwell migration assay was employed to determine the cell's migration. Cell-ELISA was used to detect the activation of PAR-1 on the membranes of MCF-7. Result After EPCR siRNA transfection, the proliferation and migration ability of the MCF-7 in the interference of EPCR gene group was significantly decreased compared with the negative control and untreated control group. After treated with anti-PAR-1 antibody, the proliferation and migration of ability of MCF-7 were decreased significantly compared with the negative control group and the untreated control group. Cell-ELISA assay indicated that the activation of PAR-1 in the cells surface of MCF-7 cell in the EPCR gene interference group was mitigated versus the negative control and untreated control group. Conclusion EPCR may promote the proliferation and migration of MCF-7 cell by activating PAR-1.
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OBJECTIVE@#To study the expression of tumor necrosis factor receptor-associated protein 1 (TRAP1) in gastric cancer tissue and its correlation with malignant biology.@*METHODS@#Gastric cancer tissue and adjacent normal tissue were collected, and mRNA content and protein content of TRAP1 were detected; gastric cancer cell lines SGC7901, BGC823, AGS and MGC803 were cultured, and mRNA contents and protein contents of TRAP1, CyclinB1, CyclinD1, CyclinE, MMP-2 and VEGF were detected.@*RESULTS@#mRNA and protein expression levels of TRAP1 in gastric cancer tissue were significantly higher than those in adjacent normal tissue, and mRNA and protein expression levels of TRAP1 in gastric cancer tissue with muscularis and serosa infiltration, lymph node metastasis, distant organ metastasis and TNM Ⅲ/Ⅳ stage were significantly higher than those in gastric cancer tissue with mucosa and submucosa infiltration, non-lymph node metastasis, non-distant organ metastasis and TNM Ⅰ/Ⅱ stage. mRNA and protein expression levels of TRAP1, CyclinB1, CyclinD1, CyclinE, MMP-2 and VEGF in MGC803 were the highest, and mRNA and protein expression levels of TRAP1, CyclinB1, CyclinD1, CyclinE, MMP-2 and VEGF in SGC7901 were the lowest. mRNA and protein expression levels of TRAP1 in gastric cancer cell lines were positively correlated with mRNA and protein expression of CyclinB1, CyclinD1, CyclinE, MMP-2 and VEGF.@*CONCLUSIONS@#The expression of TRAP1 significantly increases in gastric cancer tissue; TRAP1 may regulate the malignant biology of cells by increasing the expression of CyclinB1, CyclinD1, CyclinE, MMP-2 and VEGF, thereby resulting in the occurrence and development of gastric cancer.
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Objective: To study the expression of tumor necrosis factor receptor-associated protein 1 (TRAP1) in gastric cancer tissue and its correlation with malignant biology. Methods: Gastric cancer tissue and adjacent normal tissue were collected, and mRNA content and protein content of TRAP1 were detected; gastric cancer cell lines SGC7901, BGC823, AGS and MGC803 were cultured, and mRNA contents and protein contents of TRAP1, CyclinB1, CyclinD1, CyclinE, MMP-2 and VEGF were detected. Results: mRNA and protein expression levels of TRAP1 in gastric cancer tissue were significantly higher than those in adjacent normal tissue, and mRNA and protein expression levels of TRAP1 in gastric cancer tissue with muscularis and serosa infiltration, lymph node metastasis, distant organ metastasis and TNM III/[U+2163] stage were significantly higher than those in gastric cancer tissue with mucosa and submucosa infiltration, non-lymph node metastasis, non-distant organ metastasis and TNM [U+2160]/III stage. mRNA and protein expression levels of TRAP1, CyclinB1, CyclinD1, CyclinE, MMP-2 and VEGF in MGC803 were the highest, and mRNA and protein expression levels of TRAP1, CyclinB1, CyclinD1, CyclinE, MMP-2 and VEGF in SGC7901 were the lowest. mRNA and protein expression levels of TRAP1 in gastric cancer cell lines were positively correlated with mRNA and protein expression of CyclinB1, CyclinD1, CyclinE, MMP-2 and VEGF. Conclusions: The expression of TRAP1 significantly increases in gastric cancer tissue; TRAP1 may regulate the malignant biology of cells by increasing the expression of CyclinB1, CyclinD1, CyclinE, MMP-2 and VEGF, thereby resulting in the occurrence and development of gastric cancer.
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<p><b>OBJECTIVE</b>To explore the quality of the embryos, clinical outcomes and birth defects resulting from intracytoplasmic sperm injection (ICSI) treatment using sperms of different origins and parameters.</p><p><b>METHODS</b>A total of 980 ICSI-ET (embryo-transfer) cycles were divided into 4 groups, namely normal sperm or mild oligozoospermia group (group A), severe oligozoospermia group (group B), epididymal aspirates group (group C) and testicular biopsies group (group D). The cleavage rate, embryo quality, fertilization rate, clinical pregnancy rate, and rates of birth defects were compared between the groups.</p><p><b>RESULTS</b>The fertilization rate, cleavage rate and good-quality embryo rate were not significantly different among the 4 groups (P>0.05), and the embryo implantation rate and clinical pregnancy rate were significantly higher in group C than in groups A and B (P<0.05). Groups A, B and C showed no significant differences in the rates of birth defects (P>0.05), and no birth defects occurred in group D.</p><p><b>CONCLUSIONS</b>Sperms of different parameters and origins used in ICSI treatment can achieve similar fertilization rate, good-quality embryo rate and delivery rate. The embryo implantation rate and clinical pregnancy rate of epididymal sperm group are higher than those of ejaculated groups, possibly due to the younger age of the patients and a greater number of oocytes retrieved in group C than in groups A and B.</p>
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Feminino , Humanos , Masculino , Anormalidades Congênitas , Fertilização , Injeções de Esperma Intracitoplásmicas , Espermatozoides , Resultado do TratamentoRESUMO
<p><b>OBJECTIVE</b>To evaluate the clinical outcomes of intracytoplasmic sperm injection (ICSI) and conventional in vitro fertilization (IVF) using sibling oocytes for treatment of primary and secondary infertility.</p><p><b>METHODS</b>A total of 149 cycles of IVF and ICSI were conducted between January, 2003 and December, 2008 in our center, including 98 cycles in patients with primary infertility and 51 in those with secondary infertility. According to the embryos derived from ICSI, IVF and their combination, the clinical pregnancy rate, delivery rate and birth defect of the 3 groups were analyzed.</p><p><b>RESULTS</b>The fertilization failure rate of IVF was significantly higher in primary infertility group than in secondary infertility group (10.2% vs 3.9%, P<0.05). No fertilization failure occurred in ICSI group. The fertilization rates and good quality embryo rates in ICSI group were significant higher than those in IVF group, and the abnormal fertilization rate was significantly lower in ICSI group (P<0.05). No significant difference were found in the implantation rates, clinical pregnancy rates, delivery rates or the rates of birth defects of the offsprings between IVF, ICSI and IVF+ICSI groups.</p><p><b>CONCLUSION</b>IVF combined with ICSI may result in increased fertilization rate and avoid total fertilization failure with favorable clinical outcomes in patients with long-term infertility, and ICSI may not increase the birth defects of the offspring in these patients.</p>
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Adulto , Feminino , Humanos , Pessoa de Meia-Idade , Gravidez , Adulto Jovem , Transferência Embrionária , Fertilização in vitro , Métodos , Infertilidade Feminina , Terapêutica , Taxa de Gravidez , Estudos Retrospectivos , Injeções de Esperma Intracitoplásmicas , Resultado do TratamentoRESUMO
<p><b>OBJECTIVE</b>To study the clinical features and outcomes of in vitro fertilization and embryo transfer (IVF-ET) in infertile patients due to polycystic ovary syndrome (PCOS) or polycystic ovaries (PCO).</p><p><b>METHODS</b>This study involved 189 infertile patients with polycystic ovary syndrome (PCOS), with 129 polycystic ovaries (PCO), and 142 without PCOS or PCO (control) undergoing IVF-ET. The dosage of gonadotrophin (Gn), sex hormone level on the day of HCG administration, clinical pregnancy rate, spontaneous abortion rate and ovarian hyperstimulation syndrome (OHSS) rate were analyzed and compared between the 3 groups.</p><p><b>RESULTS</b>No significant differences were found in the clinical pregnancy rate between the PCOS group (202 cycles), PCO group (134 cycles) and control group (150 cycles) (51.0%, 53.0% and 46.0%, respectively). The levels of LH and T and early spontaneous abortion rates were significantly higher in PCOS group than in PCO group and control group (P<0.05). The P level on HCG day was the highest in PCO group (P<0.05). The early spontaneous abortion rates and clinical pregnancy rate showed no significant differences between PCO group and control group (P>0.05). The dosage of Gn was significantly lower and OHSS rate higher in PCOS and PCO groups than in the control group (P<0.05).</p><p><b>CONCLUSIONS</b>The clinical pregnancy rate of infertile patients with PCOS is similar with that of PCO patients and control patients undergoing IVF-ET treatment. PCOS, however, is associated with increased spontaneous abortion rate, possibly due to abnormality of LH and T release. The clinical outcomes in PCO patients are similar with those in the control patients, and elevated P level in the late follicular phase does not obviously influence the outcomes of IVF. Both PCOS and PCO are associated with increased risk of OHSS.</p>
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Adulto , Feminino , Humanos , Gravidez , Estudos de Casos e Controles , Transferência Embrionária , Fertilização in vitro , Infertilidade Feminina , Terapêutica , Cistos Ovarianos , Síndrome do Ovário Policístico , Resultado da Gravidez , Estudos RetrospectivosRESUMO
<p><b>OBJECTIVE</b>To investigate the association of the clinical characteristics and the outcome of in vitro fertilization and embryo transfer (IVF-ET) in infertile women with polycystic ovarian syndrome (PCOS) of different subtypes.</p><p><b>METHODS</b>A total of 189 infertile women with PCOS undergoing IVF-ET were enrolled in this study. According to Rotterdam PCOS diagnosis criteria, the patients were classified into 3 PCOS subtypes, namely type I with PCO ultrasonography and oligo-ovulation/anovulation and hyperandrogenism (54 women, for whom 58 fresh IVF-ET cycles were performed); type II with PCO ultrasonography and oligo-ovulation/anovulation (117 women with 126 cycles); type III with PCO ultrasonography and hyperandrogenism (18 women with 18 cycles). The number of retrieved oocytes, fertilization rate, implantation rate, clinical pregnancy rate, spontaneous abortion rates and incidence of ovarian hyperstimulation syndrome (OHSS) were compared between the 3 groups.</p><p><b>RESULTS</b>Except for the baseline serum T concentration in the early phase of menstrual cycle, which was significantly higher in groups I and III than in group II, no significant difference was found in the clinical characteristics between the 3 groups (P>0.05). Group I had the highest initial Gn dose, and the oocyte retrieval rates were significantly lower in groups I and III (P<0.05). The patients in group I had lower implantation rate and the clinical, on-going and cumulative pregnancy rates than groups II and III, but the differences were not statistically significant; the embryo early loss rate and spontaneous abortion rate appeared to be higher in groups I and III (P>0.05). Significantly elevated incidence of OHSS were noted in groups I and III (P<0.05).</p><p><b>CONCLUSION</b>The women with different PCOS subtypes according to the Rotterdam criteria all have similar IVF-ET outcomes, and the increased embryo loss rate and spontaneous abortion rate in groups I and III might be associated with excessive androgen that disturbs oocyte and embryo development.</p>