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1.
Arch Biochem Biophys ; 657: 23-30, 2018 11 01.
Artigo em Inglês | MEDLINE | ID: mdl-30222949

RESUMO

microRNA (miR)-141-3p has context-dependent effects on tumor progression. In this study, we attempted to explore the expression and function of miR-141-3p in cervical cancer. We found that miR-141-3p expression was significantly increased in cervical cancer specimens relative to normal cervical tissues. Moreover, miR-141-3p levels were associated with tumor size and lymph node metastasis status. Ectopic expression of miR-141-3p significantly increased cervical cancer cell proliferation, colony formation, invasion, and epithelial to mesenchymal transition, whereas depletion of miR-141-3p suppressed cervical cancer cell proliferation and invasion. FOXA2 was identified to be a target of miR-141-3p. Overexpression of miR-141-3p led to a marked inhibition of endogenous FOXA2 in cervical cancer cells. FOXA2 silencing phenocopied the effects of miR-141-3p overexpression on cervical cancer cell proliferation and invasion. Enforced expression of FOXA2 blocked the effects of miR-141-3p on cervical cancer cell proliferation and invasion. miR-141-3p overexpression significantly accelerated the growth of xenograft tumors, which was accompanied by a striking reduction in FOXA2 expression. miR-141-3p acts as an oncogene in cervical cancer largely through repression of FOXA2. Targeting miR-141-3p may represent a potential therapeutic strategy for cervical cancer.


Assuntos
Carcinogênese/genética , Fator 3-beta Nuclear de Hepatócito/genética , MicroRNAs/genética , Neoplasias do Colo do Útero/genética , Adulto , Idoso , Animais , Linhagem Celular Tumoral , Proliferação de Células/genética , Regulação para Baixo , Transição Epitelial-Mesenquimal/genética , Feminino , Regulação Neoplásica da Expressão Gênica , Técnicas de Silenciamento de Genes , Humanos , Camundongos Endogâmicos BALB C , Pessoa de Meia-Idade , Invasividade Neoplásica/genética , Regulação para Cima , Neoplasias do Colo do Útero/patologia
2.
Medicine (Baltimore) ; 96(32): e7753, 2017 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-28796064

RESUMO

Human sex hormone binding globulin (SHBG) level alteration and SHBG gene mutations, especially in rs6259 and rs727428 loci, are associated with male infertility. In this study, the rs6259 and rs727428 loci in SHBG gene were detected by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) to explore the direct relation between these 2 loci and male infertility in Han population of Henan province and to provide information for the pathogenesis, diagnosis, and treatment of male infertility.A total of 366 male Han individuals in Henan province were enrolled in this study. Of the 366 male individuals, 183 infertility patients were served as infertility group and other 183 normal individuals as a control group. SHBG gene rs6259 and rs727428 locus polymorphisms were detected by PCR-RFLP in all patients. Also, genotype frequencies, allele frequency, and haplotype were all analyzed in both groups.There were statistical differences in A allele frequency (P = .017) and GA genotype frequency (P = .016) of SHBG gene rs6259 locus and in CC genotype frequency of SHBG gene rs727428 locus (P = .034) between the 2 groups.Male infertility is associated with GA genotype and A allele of rs6259 locus, as well as CC genotype of rs727428 locus in SHBG gene.


Assuntos
Infertilidade Masculina/etnologia , Infertilidade Masculina/genética , Globulina de Ligação a Hormônio Sexual/genética , Adulto , China/epidemiologia , Grupos Étnicos , Frequência do Gene , Estudo de Associação Genômica Ampla , Genótipo , Haplótipos , Humanos , Masculino , Pessoa de Meia-Idade , Reação em Cadeia da Polimerase , Polimorfismo de Nucleotídeo Único
3.
J Assist Reprod Genet ; 33(3): 373-378, 2016 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-26749389

RESUMO

PURPOSE: The aim of this study was to (1) investigate the incidence of embryos derived from "unfertilized oocytes" i.e., oocytes not displaying pronuclei (0PN) at the time of the fertilization check and (2) determine the clinical pregnancy rates when transferring 0PN-derived embryos. METHODS: In this retrospective study, 4424 IVF-ET cycles were reviewed. RESULTS: In total, 11.3% (4966/43,949) 0PN-derived embryos were observed. It was found that female age, number of oocytes, and the top-quality embryo rate were significantly correlated with 0PN-derived embryo occurrence. The source of embryos transferred did not impact significantly on clinical pregnancy and live-birth rates. Of the 183 cycles included in this study where 275 0PN-derived embryos were transferred in total, only 0PN-derived embryos were available in 70 of those cycles. It was noteworthy that 13 healthy infants resulted from 0PN-derived embryos with an implantation rate of 17.0%. CONCLUSION: These results indicate that the traditional method of excluding embryos because of those oocytes originally lacking any sign of a pronucleus at the fertilization check should be re-considered as transferring 0PN-derived embryos with subsequent expected developmental performance may be considered as an option for those patients where no other embryos are available.


Assuntos
Fertilização In Vitro/métodos , Oócitos/fisiologia , Adulto , Núcleo Celular/fisiologia , Transferência Embrionária/métodos , Feminino , Humanos , Nascimento Vivo/epidemiologia , Masculino , Idade Materna , Oócitos/patologia , Gravidez , Taxa de Gravidez , Estudos Retrospectivos
4.
Artigo em Chinês | MEDLINE | ID: mdl-22799155

RESUMO

OBJECTIVE: To understand the effects of the change of climate, vegetation, flooding led by the construction of Three Gorges Project to the growth of Oncomelania snail. METHODS: The spatial analysis function of ArcGIS combined with meteorological data, 1:50 000 and the 1:10 000 digital elevation model were employed to analyzed the climate, flooding and other conditions of the reservoir area, and the field survey was used to investigated the vegetation in this area. RESULTS: The flood time, climate precipitation, sunshine duration, vegetation types and coverage of Three Gorges reservior area can meet the growth needs of Oncomelania snail. However, the characteristic of water impounding winter and disembogueing in summer were not agreed with the life circle of Oncomelania snail. CONCLUSIONS: The environment of flooding in winter and drought in summer in the Three Gorges reservior areas is not suitable for the growth of Oncomelania snail. If the transfusion of snais from other endemic areas can be prevented, the area can be avoid to become snail area.


Assuntos
Meio Ambiente , Caramujos/crescimento & desenvolvimento , Animais , Clima , Ecossistema , Inundações , Humanos
5.
J Assist Reprod Genet ; 29(9): 883-9, 2012 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-22684538

RESUMO

OBJECTIVE: To compare success rates of vitrified-warmed with fresh and frozen-thawed ETs DESIGN: Retrospective. SETTING: Public fertility center. PATIENT(S): Cryopreserved- thawed/warmed ETs were included in this study. Fresh cycles, in which supernumerary embryos were cryopreserved, were set as the fresh control group. INTERVENTION(S): Supernumerary day 3 embryos were cryopreserved by slow-freezing or vitrification and transferred after thawing or warming. MAIN OUTCOME MEASURE(S): Comparison of two cryopreservation techniques with respect to post-thaw survival of embryos, implantation and pregnancy rates, neonatal outcome, and congenital birth defects. RESULTS: A total of 962 fresh, 151 freezing-thawed and 300 vitrified-warmed cycles were included in this study. The survival and intact cell rates in the vitrification group were significantly higher compared with those in the slow freezing group (88.5 % vs 74.5 % and 86.6 % vs 64.0 %). The implantation, clinical pregnancy and live birth rates of the vitrification group were similar to the fresh and significant higher than slow freezing group. There were no significant differences in mean gestational age, birth weight, stillbirth, birth defects and the prevalence of neonatal diseases among three groups. CONCLUSION: Vitrified-warmed ETs yield comparable outcomes with fresh ETs and is superior to frozen-thawed ETs regarding the survival rate and clinical outcomes.


Assuntos
Criopreservação/métodos , Transferência Embrionária/métodos , Resultado da Gravidez , Vitrificação , Adulto , Peso ao Nascer , Anormalidades Congênitas , Implantação do Embrião , Feminino , Seguimentos , Idade Gestacional , Humanos , Recém-Nascido , Recuperação de Oócitos , Indução da Ovulação , Gravidez , Taxa de Gravidez , Prevalência , Estudos Retrospectivos , Injeções de Esperma Intracitoplásmicas
6.
Artigo em Chinês | MEDLINE | ID: mdl-17971942

RESUMO

PURPOSE: To investigate the clinical significance and management of ASCUS/LSIL. METHODS: 254 patients who were examined with cervical cytology in the Cancer Institute and Hospital Chinese Academy of Medical Sciences were ASCUS/LSIL, of whom 136 cases underwent colposcopy, Data were analyzed retrospectively according to the golden criterion of pathology outcome. RESULTS: 140 cases were ASCUS, and 114 cases were LSIL. Cervical intra-epithelial neoplasia (CIN) were diagnosed in 51.5% of patients with ASCUS, compared with 59.6% of patients with LSIL (P>0.05). High-grade cervical intraepithelial neoplasia were diagnosed in 22.9% of patients with ASCUS, compared with 30.7% of patients with LSIL (P >0.05). In the 136 patients examined with colposcopy, inflammation was found in 47 cases, low-grade intraepithelial lesion in 53 cases, High-grade intraepithelial lesion in 36 cases. The pathological results show inflammation in 55 cases, low-grade intraepithelial lesion in 41 cases, High-grade intraepithelial lesion in 40 cases (Kappa=0.314, U=0.064, P less than 0.05). CIN were diagnosed in 79% (67/84) of HPV-positive patients identified by pathology, compared with 43.5% (74/170) of HPV-negative patients (chi2=29.88 P less than 0.05). 83.5% of 254 patients were between 35 to 55 years old, and that was consistent with HPV-positive women age peak. CONCLUSION: Patients with ASCUS should be paid the same attention with LSIL patients and colposcopy examination should be done immediately to avoid missed diagnosis and missed follow-up examination, especially for HPV positive patients between 35 to 55 years old.


Assuntos
Neoplasia Intraepitelial Cervical/diagnóstico , Neoplasias de Células Escamosas/diagnóstico , Infecções por Papillomavirus/diagnóstico , Neoplasias do Colo do Útero/diagnóstico , Adulto , Neoplasia Intraepitelial Cervical/terapia , Neoplasia Intraepitelial Cervical/virologia , Colposcopia , Citodiagnóstico/instrumentação , Citodiagnóstico/métodos , Feminino , Humanos , Pessoa de Meia-Idade , Neoplasias de Células Escamosas/terapia , Neoplasias de Células Escamosas/virologia , Papillomaviridae/isolamento & purificação , Infecções por Papillomavirus/terapia , Infecções por Papillomavirus/virologia , Estudos Retrospectivos , Neoplasias do Colo do Útero/terapia , Neoplasias do Colo do Útero/virologia , Adulto Jovem
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