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1.
Zygote ; 30(5): 593-599, 2022 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-35730547

RESUMO

Recently, more attention has been raised towards fertility preservation in women with cancer. One option is in vitro maturation (IVM) of the immature oocytes as there is not enough time for induction of an ovarian stimulation protocol. The aim was to compare the IVM laboratory outcomes between stimulated and unstimulated (natural) in vitro fertilization (IVF) cycles. In total, 234 immature oocytes collected from 15 cancer patients who underwent an IVM programme (natural IVM) and 23 IVF cycles with a controlled ovarian hyperstimulation protocol (stimulated IVM) were analyzed. The oocyte morphology, zona pellucida (ZP), and meiotic spindle presence were measured using PolScope technology. Also, the rates of oocyte maturation and fertilization were assessed in both groups. The IVM rate was higher in the stimulated cycle (P < 0.05), but the fertilization rate was insignificant in comparison with unstimulated cycles. There were no significant differences in the spindle visualization and ZP birefringence scoring between the groups (P > 0.05). The oocyte normal morphology was better in the stimulated cycle compared with the natural cycle (P < 0.05). In conclusion, IVM can be recommended for cancer patients as an alternative treatment when there is insufficient time for conventional IVF before chemotherapy initiation.


Assuntos
Técnicas de Maturação in Vitro de Oócitos , Neoplasias , Feminino , Fertilização in vitro/métodos , Humanos , Técnicas de Maturação in Vitro de Oócitos/métodos , Neoplasias/terapia , Oócitos/fisiologia , Indução da Ovulação/métodos
2.
Fetal Pediatr Pathol ; 41(1): 116-133, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-32536231

RESUMO

BACKGROUND: The association of the fetal MTHFR A1298C (rs1801131) polymorphism and neural tube defects (NTDs) susceptibility has been widely demonstrated, but the results remain inconclusive. Thus, we performed a meta-analysis to investigate the association between fetal MTHFR A1298C polymorphism and NTDs risk. METHODS: An electronic search of PubMed, web of science, SciELO, CNKI database for studies on the fetal MTHFR A1298C polymorphism and NTDs risk was performed up to March 30, 2020. RESULTS: A total of 22 case-control studies with 3,224 fetuses with NTDs and 3,295 controls were selected. Overall, pooled data showed that the fetal MTHFR A1298C polymorphism was not significantly associated with risk an increased risk of NTDs in the global population. When stratified analysis by ethnicity, country of origin and NTDs type, still no statistically significant association was found. CONCLUSIONS: Our pooled data emerged no evidence for significant association between fetal MTHFR A1298C polymorphism and NTDs risk.


Assuntos
Metilenotetra-Hidrofolato Redutase (NADPH2) , Defeitos do Tubo Neural , Estudos de Casos e Controles , Feminino , Feto , Predisposição Genética para Doença , Genótipo , Humanos , Metilenotetra-Hidrofolato Redutase (NADPH2)/genética , Defeitos do Tubo Neural/genética , Polimorfismo Genético , Polimorfismo de Nucleotídeo Único , Gravidez , Cuidado Pré-Natal
3.
Fetal Pediatr Pathol ; 41(2): 225-241, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-32536242

RESUMO

Background MTHFR gene may be a key epigenetic regulation-related factor crucial during embryogenesis. We performed a meta-analysis to determine the association of fetal MTHFR C677T polymorphism with neural tube defects (NTDs).Methods A comprehensive literature search of the PubMed, Embase, and CNKI database was performed up to April 10, 2020.Results A total of 19 case-control studies with 2,228 NTDs cases and 4,220 controls were identified. Pooled data revealed that the fetal MTHFR C677T polymorphism was significantly highly correlated with development of NTDs in the overall population. Stratified analysis showed a significant association among Caucasians and Asians, but not in mixed populations. There was a significant association between the MTHFR C677T polymorphism and spina bifida risk. No publication bias was found under any genetic model.Conclusions Our pooled data support the fetal MTHFR C677T polymorphism association with risk of NTDs, especially among Caucasians and Asians.


Assuntos
Epigênese Genética , Defeitos do Tubo Neural , Estudos de Casos e Controles , Feminino , Predisposição Genética para Doença , Humanos , Metilenotetra-Hidrofolato Redutase (NADPH2)/genética , Defeitos do Tubo Neural/genética , Polimorfismo de Nucleotídeo Único
4.
Adv Exp Med Biol ; 1308: 109-117, 2021.
Artigo em Inglês | MEDLINE | ID: mdl-33861440

RESUMO

Polycystic ovary syndrome (PCOS) is the most common cause of anovulatory infertility, for which the insulin sensitizer metformin has been used therapeutically. It has been shown that curcumin also exhibits insulin-sensitizing properties. Given that metformin acts as an ovulation inducing agent and both curcumin and metformin can reduce insulin resistance, the aim of the current study was to evaluate the effect of metformin with and without curcumin nanomicelles in the treatment of women with polycystic ovary syndrome. This clinical trial was conducted on 100 women with PCOS, diagnosed according to the Rotterdam criteria, who were sequentially recruited and randomly divided into two groups (n = 50 each). Group 1 received 500 mg metformin three times daily and group 2 received 80 mg/day capsule of curcumin nanomicelle and 500 mg metformin three times a day for 3 months. After collecting fasting blood samples, biochemical parameters including triglycerides, high-density lipoprotein cholesterol (HDL-C), low-density lipoprotein cholesterol (LDL-C), total cholesterol, plasma glucose, alanine amino transferase (ALT) and aspartate aminotransferase (AST) were evaluated based on enzymatic methods. Hormonal parameters were assessed using immunoassay kits. Insulin resistance (HOMA-IR) and insulin-sensitivity check index (QUICKI) were also assessed. After treatment, fasting insulin, HOMA-IR, and total testosterone in group 2 were significantly lower than those in group 1 (p < 0.05). Post-treatment LDL-C levels in groups 1 and 2 were 117.9 ± 24 and 91.12 ± 19.46 mg/dL, respectively (p < 0.01). In addition, HDL-C levels were increased with curcumin (group 1: 38.1 ± 4.36 mg/dL; group 2: 44.12 ± 7.3 mg/dL, p < 0.05). Total cholesterol was decreased with curcumin level (group 1: 207.9 ± 39.84 mg/dL; group 2; 159.7 ± 48.43 mg/dL, p < 0.05), with a decrease in triglycerides levels (group 1: 141.6 ± 9.57; group 2: 97.5 ± 8.8 mg/dL, p < 0.01). This study showed that curcumin has a synergistic effect with metformin in the improvement of insulin resistance and lipid profile in patients with PCOS. Therefore, the combined use of metformin and curcumin may have therapeutic utility in patients with PCOS.


Assuntos
Curcumina , Resistência à Insulina , Metformina , Síndrome do Ovário Policístico , Glicemia , Curcumina/uso terapêutico , Feminino , Humanos , Hipoglicemiantes/farmacologia , Hipoglicemiantes/uso terapêutico , Insulina , Metformina/uso terapêutico , Síndrome do Ovário Policístico/tratamento farmacológico
5.
J Obstet Gynaecol Res ; 47(12): 4340-4349, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-34676952

RESUMO

AIM: One of the most important ways to understand the ovarian biology is studding the initiation of primordial follicle development and subsequent folliculogenesis control. In this study, proliferating cell nuclear antigen (PCNA) presentation was used as a marker of follicular development in the thawed ovarian tissue (OT) following transplantation onto chick embryo chorioallantoic membrane (CAM) using two methods of freezing of slow freezing and vitrification. METHODS: Samples of OT from 10 patients were subjected to slow freezing and vitrification. After warming, CAM transplantation was done and PCNA proliferation index (PI; percent of PCNA-positive granulosa cells) was calculated for each follicle stage. Image J software was used to determine the mean staining intensity. RESULTS: PCNA was positive for granulosa cells and oocytes nuclei, but negative for ooplasm. There were no remarkable PCNA staining in the granulosa cells of primordial follicles, but increased significantly as follicle progression (p < 0.05). Proliferation rate was also insignificantly higher in the vitrified than slow freezing group, before and after transplantation (p < 0.05). Lower PCNA presentation index was observed after CAM transplantation (p < 0.05). The earliest stage of follicular recruitment took place in the transitional follicles, before squamous cells transform to cuboidal cells. CONCLUSION: PCNA showed that follicles had proliferation power after cryopreservation. Higher presentation after vitrification may indicate accelerated folliculogenesis in the thawed OT.


Assuntos
Ovário , Vitrificação , Animais , Embrião de Galinha , Criopreservação , Feminino , Humanos , Folículo Ovariano , Antígeno Nuclear de Célula em Proliferação
6.
Arch Gynecol Obstet ; 304(5): 1135-1151, 2021 11.
Artigo em Inglês | MEDLINE | ID: mdl-34387724

RESUMO

BACKGROUND: The association of polymorphisms at nitric oxide synthases (eNOS) gene with recurrent pregnancy loss (RPL) susceptibility has been the focus of attention in several studies. However, the conclusions have been divergent and controversial. Therefore, we performed this study to precisely evaluate the association of eNOS polymorphisms with the risk of RPL. METHODS: A universal search in PubMed, Web of Knowledge, SciELO, MedRxiv, Scopus and web of Science was performed to identify relevant studies up to January 25, 2020. RESULTS: A total of 39 eligible studies including 15 studies with 2274 cases and 1933 controls on VNTR 4b/a, nine studies with 1640 cases and 1268 controls on -786C > T, and 15 studies with 2660 cases and 2557 controls on + 894G > T polymorphism were selected. Pooled data revealed that eNOS VNTR 4b/a (dominant model: OR = 1.174, 95% CI 1.021-1.350, p = 0.025) and + 894G > T (allele model: OR = 1.278, 95% CI 1.024-1.595, p = 0.030; homozygote model: OR = 1.442, 95% CI 1.084-1.917, p = 0.012; dominant model: OR = 1.305, 95% CI 1.006-1.693, p = 0.045; and recessive model: OR = 1.378, 95% CI 1.045-1.817, p = 0.023) polymorphisms were significantly associated with an increased risk of RPL, but not - 786 T > C. Stratified analysis by ethnicity revealed that the eNOS + 894G > T was associated with RPL risk in Asians. CONCLUSIONS: To sum up, our results indicated that the eNOS VNTR 4b/a and + 894G > T polymorphisms might be contributing to RPL development, but not the - 786C > T polymorphism.


Assuntos
Aborto Habitual/genética , Predisposição Genética para Doença , Óxido Nítrico Sintase Tipo III/genética , Polimorfismo de Nucleotídeo Único/genética , Alelos , Estudos de Casos e Controles , Feminino , Humanos , Polimorfismo Genético , Gravidez
7.
Fetal Pediatr Pathol ; 40(5): 378-386, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-31955640

RESUMO

BACKGROUND: Genetic causes that contribute to recurrent pregnancy loss (RPL) are not fully understood. The aim of this study was to evaluate the association of five polymorphisms at MMP-2, MMP-3, and MMP-9 genes with risk of RPL. Methods: The study comprised 250 women with RPL and 250 healthy controls. The MMP-2 (rs243865, rs2285053), MMP-3 (rs35068180), and MMP 9 (rs3918242, rs17576) polymorphisms were genotyped by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) assay. Results: A significant association was found between MMP-3 rs35068180 polymorphism and RPL risk. There was no significant association between RPL and polymorphisms at MMP-2 (rs243865, rs2285053) and MMP 9 (rs3918242, rs17576) genes. Conclusion: MMP-3 rs35068180 polymorphism may modulate RPL risk in Iranian women. There is no evidence to suggest that MMP-2 (rs243865, rs2285053) and MMP 9 (rs3918242, rs17576) polymorphisms are associated with RPL risk.


Assuntos
Aborto Habitual , Metaloproteinase 2 da Matriz , Metaloproteinase 3 da Matriz , Metaloproteinase 9 da Matriz , Aborto Habitual/genética , Estudos de Casos e Controles , Feminino , Frequência do Gene , Predisposição Genética para Doença , Genótipo , Humanos , Irã (Geográfico) , Metaloproteinase 2 da Matriz/genética , Metaloproteinase 3 da Matriz/genética , Metaloproteinase 9 da Matriz/genética , Polimorfismo de Nucleotídeo Único , Gravidez
8.
Fetal Pediatr Pathol ; 40(5): 455-470, 2021 Oct.
Artigo em Inglês | MEDLINE | ID: mdl-31920131

RESUMO

BACKGROUND: Several case-control studies have been performed to investigate the association between 894 G > T polymorphism in endothelial nitric oxide synthase (eNOS) gene and susceptibility to preeclampsia. However, the results were inconsistent and inconclusive. Therefore, we conducted this meta-analysis to investigate the association. Methods: All studies published up to September 30, 2019 were identified by searching electronic databases such as PubMed, EMBASE, CNKI, and WANFANG. Results: A total of 35 case- control studies with 4,254 cases and 5,801 controls were selected. There was a significant association between the eNOS 894 G > T and preeclampsia risk. When stratified by ethnicity, an increased risk of preeclampsia was found in Caucasian and Mixed populations, but not in Asians or Africans. Conclusion: Based on our meta-analysis, the eNOS 894 G > T polymorphism was associated with an increased risk of preeclampsia, especially among Caucasian and Mixed populations.


Assuntos
Óxido Nítrico Sintase Tipo III , Pré-Eclâmpsia , Estudos de Casos e Controles , Feminino , Predisposição Genética para Doença , Humanos , Óxido Nítrico Sintase Tipo III/genética , Polimorfismo Genético , Polimorfismo de Nucleotídeo Único , Pré-Eclâmpsia/genética , Gravidez
9.
Fetal Pediatr Pathol ; 40(6): 605-611, 2021 Dec.
Artigo em Inglês | MEDLINE | ID: mdl-32249650

RESUMO

BackgroundInsulin-like growth factor-II (IGF-II) has a prominent role in fetal growth and development. The aim of this study was to investigate the association of IGF-II Apa1 and MspI polymorphisms with intrauterine growth restriction (IUGR) risk. Methods: A total of 45 infants with IUGR and 45 infants appropriate for gestational (AGA) were enrolled. Genotyping of Apa1 and MspI polymorphisms was assayed by PCR-RFLP approach. Results: The heterozygote genotype (AG) of IGF-II Apa1 CT was associated with an increased risk of IUGR. Genotypes and alleles of IGF-II MspI polymorphism had no significant association with IUGR susceptibility (P > 0.05). Conclusions: The current study suggests that IGF-II Apa1 polymorphism is associated with an increased risk of IUGR, while IGF-II MspI showed no association with IUGR. Thus, IGF-II Apa1 polymorphism could be used as a relevant molecular marker to identify the fetus at risk of developing IUGR.


Assuntos
Retardo do Crescimento Fetal , Fator de Crescimento Insulin-Like II , Desenvolvimento Fetal , Retardo do Crescimento Fetal/genética , Feto , Humanos , Lactente , Fator de Crescimento Insulin-Like II/genética
10.
BMC Public Health ; 20(1): 274, 2020 Feb 27.
Artigo em Inglês | MEDLINE | ID: mdl-32106837

RESUMO

BACKGROUND: Human papillomavirus (HPV) is one of the most significant risk factors for cervical cancer. The HPV vaccine has a very significant impact on the incidence of cervical cancer. The present study aimed to investigate the impact of prophylactic quadrivalent HPV vaccine in the treatment of women with cervical intraepithelial neoplasia (CIN 1-3). METHODS: This randomized controlled trial was conducted in the Shahid Sadoughi University of Medical Sciences (SSUMS), Yazd, Iran, from October 2011 to November 2015 in women with histologically confirmed residual/recurrent CIN 1 or high-grade CIN (CIN 2-3). Eligible women were assigned randomly to an intervention and a control group. Women in the intervention group were given HPV vaccinations while those in the control group were not. Participants were followed up for 24 months. Primary and secondary outcomes, and adverse effects of the treatment in the two groups were compared using Student's t test, the chi-square test, or Fisher's exact test. P values < 0.05 or less were considered statistically significant. RESULTS: Three-hundred and twelve women were randomized to the two groups; the data of 138 in the intervention group and 104 in the control group were analyzed. The mean age of the women was 32.59 ± 4.85 years. Differences in age, marital status, and grades of CIN weren't significant between the two groups. At the end of the two-year follow-up period, the number of women with CIN 2-3 in the intervention and control groups was reduced by 75% (from 93 to 23) versus 40% (from 69 to 41). The efficacy of the HPV vaccine in women with CIN 1-3 was 58.7% (p = 0.018). No serious adverse effects related to the vaccines were reported. CONCLUSIONS: The prophylactic quadrivalent HPV vaccine after treatment may have a therapeutic effect in women with residual/recurrent CIN 1 or high-grade CIN (CIN 2-3). TRIAL REGISTRATION: Iranian Registry of Clinical Trials, IRCT20190603043801N1. Registered 24 July 2019 - Retrospectively registered, http://www.irct.ir/user/trial/40017/view.


Assuntos
Vacinas contra Papillomavirus/uso terapêutico , Displasia do Colo do Útero/terapia , Adulto , Feminino , Humanos , Irã (Geográfico) , Resultado do Tratamento
11.
Fetal Pediatr Pathol ; 39(3): 246-250, 2020 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-32238084

RESUMO

Background: Since early December 2019, the Coronavirus Disease 19 (COVID-19) infection has been prevalent in China and eventually spread to other countries. There are a few published cases of COVID-19 occurring during pregnancy and due the possibility of mother-fetal vertical transmission, there is a concern that the fetuses may be at risk of congenital COVID-19. Methods: We reviewed the risk of vertical transmission of COVID-19 to the fetus of infected mothers by using data of published articles or official websites up to March 4, 2020. Results: A total of 31 infected pregnant mothers with COVID-19 were reported. No COVID-19 infection was detected in their neonates or placentas. Two mothers died from COVID-19-related respiratory complications after delivery. Conclusions: Currently, based on limited data, there is no evidence for intrauterine transmission of COVID-19 from infected pregnant women to their fetuses. Mothers may be at increased risk for more severe respiratory complications.


Assuntos
Infecções por Coronavirus/complicações , Infecções por Coronavirus/transmissão , Transmissão Vertical de Doenças Infecciosas , Pneumonia Viral/complicações , Pneumonia Viral/transmissão , Complicações Infecciosas na Gravidez , Betacoronavirus , COVID-19 , Canadá , China/epidemiologia , Feminino , Hong Kong , Humanos , Recém-Nascido , Irã (Geográfico)/epidemiologia , Mortalidade Materna , Pandemias , Gravidez , Transtornos Respiratórios/complicações , Risco , SARS-CoV-2 , Estados Unidos
12.
Fetal Pediatr Pathol ; 39(4): 346-359, 2020 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-31437073

RESUMO

Background: The present meta-analysis was performed to investigate the association of promoter region polymorphisms at IL-6 and IL-18 genes with recurrent pregnancy loss (RPL) risk. Methods: An electronic search of the PubMed, Embase, ISI Web of Knowledge and CNKI databases was performed to identify eligible studies up to May 30, 2019. Results: A total of 31 case-control studies were finally selected. Significant associations with the risk of RPL were detected for the IL-6 -174 G > C, -634 G > C and IL-18 -137 G > C polymorphisms in overall population. Further, subgroup analyses by ethnicity revealed that the IL-6 -174 G > C and -634 G > C polymorphisms were significantly associated with risk of RPL risk in Asians. Conclusions: Our results suggest that the IL-6 -174 G > C, -634 G > C and IL-18 -137 G > C polymorphisms may contribute to the susceptibility of RPL. The IL-18 -607 C > A polymorphism does not appear to influence the development of RPL.


Assuntos
Aborto Habitual , Interleucina-18 , Aborto Habitual/genética , Feminino , Predisposição Genética para Doença , Humanos , Interleucina-18/genética , Interleucina-6/genética , Gravidez , Regiões Promotoras Genéticas/genética
13.
Cryobiology ; 83: 84-89, 2018 08.
Artigo em Inglês | MEDLINE | ID: mdl-29842869

RESUMO

Combination of in vitro maturation (IVM) and cryopreservation offers new opportunities for women with contraindication in ovarian stimulation, and females who desire to postpone the childbearing due to different problems. There are still controversies regarding IVM procedure and its impact on oocytes fertilization capability. This systematic review and meta-analysis were conducted to evaluate the impact of vitrification on human oocyte maturation rate during IVM procedure. In this review, we searched Medline, Embase, Scopus and ISI web of science to identify English-language studies. The last search was implemented on 3 February 2018. The original articles which assessed maturation rate after vitrification of MI or GV oocytes were included. Animal trials and the studies that performed cryopreservation using slow-freeze method were excluded. Bias and quality assessments were performed. 2476 articles were screened primarily. After duplication removing and the application of inclusion and exclusion criteria, 14 studies included for the analysis. All studies compared maturation rate between the oocytes that were vitrified at the GV or MI stage before maturation and oocytes which were matured in vitro without vitrification. Meta-analysis showed that oocyte vitrification at GV stage had a significant negative impact on maturation rate (RR = 0.76, 95% CI: 0.66-0.88); I2 = 85.2%; P = 0.000). Finally, based on our results, oocyte vitrification decreases the maturation rate by 24%.


Assuntos
Criopreservação/métodos , Técnicas de Maturação in Vitro de Oócitos/métodos , Oócitos/crescimento & desenvolvimento , Oogênese/fisiologia , Vitrificação , Feminino , Congelamento , Humanos
14.
Asian Pac J Cancer Prev ; 25(1): 43-55, 2024 Jan 01.
Artigo em Inglês | MEDLINE | ID: mdl-38285766

RESUMO

Breast cancer is one of the most common cancers in the world and leading cause of cancer-related death among women. Several studies indicated that Arg188His (rs3218536) polymorphism of X-ray repair cross-complementing 2 (XRCC2) may be associated with breast cancer risk. However, this association remains ambiguous. Thus, we performed a meta-analysis to provide more precise conclusion on this issue. A comprehensive search in PubMed, Google Scholar and ISI Web of Science was performed to select all relevant studies. Odds ratios (OR) with corresponding 95% confidence intervals (CI) were applied to assess the strength of the relationships. A total of 17 studies with 5694 breast cancer cases and 6450 healthy subjects were identified. The pooled data revealed that XRCC2 Arg188His polymorphism was marginally with susceptibility to breast cancer globally under the heterozygote contrast (OR = 0.929, 95% CI = 0.873-0.987, p=0.018). Moreover, subgroup analysis by ethnicity revealed that this polymorphism was associated with breast cancer risk among Caucasians. On the whole, the present study demonstrates that the XRCC2 Arg188His polymorphism may contribute to an increased risk of breast cancer.


Assuntos
Neoplasias da Mama , Proteínas de Ligação a DNA , Feminino , Humanos , Neoplasias da Mama/genética , Estudos de Casos e Controles , Proteínas de Ligação a DNA/genética , Predisposição Genética para Doença , Polimorfismo de Nucleotídeo Único , Raios X
15.
Asian Pac J Cancer Prev ; 25(2): 661-670, 2024 Feb 01.
Artigo em Inglês | MEDLINE | ID: mdl-38415554

RESUMO

BACKGROUND: Growing studies revealed the association between polymorphisms in Tumor Protein TP73 (TP73) and susceptibility to cancer, especially with gynecological cancers. but, the results remained inconsistent. This meta-analysis was carried out to examine the relationship of the TP73 G4C14-to-A4T14 polymorphism (hereafter, G4C14-to-A4T14) with susceptibility to cervical cancer globally and by ethnicity. METHODS: Eligible studies were collected by retrieving PubMed, Scopus, Web of Science, Embase, Wan Fang, and CNKI published before 25 October, 2023. The pooled odds ratios (ORs) with 95% confidence intervals (CIs) were used to assess the strength of such association. RESULTS: A total of 10 case-control studies with 1804 cervical cancer cases and 2433 healthy controls were included to this study. The pooled results showed that TP73 G4C14-to-A4T14 polymorphism was not associated with cervical cancer risk in overall. in terms of stratified analyses by ethnicity, this polymorphism was not associated with risk of cervical cancer among East-Asian women. however,  there was a significant association based source of control among hospital-based studies. CONCLUSIONS: Inconsistent with previous meta-analyses, our pooled results revealed that TP73 G4C14-to-A4T14 polymorphism might not be a risk factor for development of cervical cancer globally and among East-Asian women. Moreover, further studies examining the effect of gene-gene and gene-environment interactions may eventually provide a better knowledge.


Assuntos
Neoplasias do Colo do Útero , Feminino , Humanos , Neoplasias do Colo do Útero/epidemiologia , Neoplasias do Colo do Útero/genética , Proteína Tumoral p73/genética , Proteínas Supressoras de Tumor/genética , Proteínas de Ligação a DNA/genética , Proteínas Nucleares/genética , Predisposição Genética para Doença , Fatores de Risco , Estudos de Casos e Controles , Polimorfismo de Nucleotídeo Único
16.
J Diabetes Metab Disord ; 23(1): 475-486, 2024 Jun.
Artigo em Inglês | MEDLINE | ID: mdl-38932913

RESUMO

Purpose: The genetic aspect of gestational diabetes mellitus (GDM) is influenced by multiple causal genetic variants, each with different effect sizes. The KCNJ11 gene is particularly noteworthy as a potential contributor to the risk of GDM due to its role in regulating glucose-induced insulin secretion. To evaluate the association between KCNJ11 polymorphisms and GDM, a comprehensive meta-analysis was conducted to review the existing literature and quantitatively assess the correlation. Methods: A thorough search was performed on the PubMed, EMBASE, Scopus, and CNKI databases until December 25, 2023, using precise terms and keywords related to Gestational Diabetes, KCNJ11 gene, and polymorphism. Odds ratios and 95% confidence intervals were used to evaluate the relationships. The statistical analysis was conducted using Comprehensive Meta-Analysis software, and the Cochrane risk of bias assessment tool was used to determine bias presence. Results: The meta-analysis comprised 9 studies with 3108 GDM cases and 5374 controls for the rs5219 polymorphism, and 3 studies with 1209 GDM cases and 1438 controls for the rs5210 polymorphism. The pooled data indicated a noteworthy link between the rs5219 polymorphism and GDM globally and among various ethnic groups, notably in Caucasian and Asian populations. However, no substantial association was observed between the rs5210 polymorphism and GDM. Conclusions: Pooled data showed a correlation between the KCNJ11 rs5219 polymorphism and GDM susceptibility, but no association was found for the rs5210 polymorphism. Future research with larger sample sizes and more diverse populations is needed to improve result generalizability. Supplementary Information: The online version contains supplementary material available at 10.1007/s40200-024-01428-0.

17.
Asian Pac J Cancer Prev ; 25(3): 767-776, 2024 Mar 01.
Artigo em Inglês | MEDLINE | ID: mdl-38546059

RESUMO

Studies on the CXCL12 rs1801157 polymorphism show that this polymorphism is involved in development of breast cancer, but its specific relationships or effects are not consistent. The purpose of this meta-analysis was to investigate the association between CXCL12 rs1801157 polymorphism and susceptibility to breast cancer. PubMed, Scopus, Embase, the Cochrane Library, Web of Science, and CNKI were searched for eligible studies through February 01, 2023. A total of ten studies with 2093 cases and 2302 controls were included in this meta-analysis. Overall, there is a significant association between CXCL12 rs1801157 polymorphism and risk of breast cancer under the homozygote genetic model (AA vs. GG, OR= 1.350, 95% CI: 1.050-1.734, p= 0.019). Stratified by ethnicity showed a significant association in Caucasian women, but not among Asian and mixed populations. This meta-analysis confirms that CXCL12 rs1801157 polymorphism is related to breast cancer risk, especially among Caucasian women. However, well-designed large-scale studies are required to further evaluate the results.


Assuntos
Neoplasias da Mama , Quimiocina CXCL12 , Feminino , Humanos , Asiático , Neoplasias da Mama/genética , Estudos de Casos e Controles , Quimiocina CXCL12/genética , Predisposição Genética para Doença , Polimorfismo de Nucleotídeo Único , Fatores de Risco , População Branca
18.
Asian Pac J Cancer Prev ; 25(4): 1155-1167, 2024 Apr 01.
Artigo em Inglês | MEDLINE | ID: mdl-38679974

RESUMO

BACKGROUND: Cervical cancer, globally, ranks as the runner-up among the most prevalent forms of cancer affecting women. The role of the tumor necrosis factor alpha (TNF-α) polymorphism in the susceptibility to cervical cancer has been a subject of interest. However, the current evidence regarding this association remains inconclusive. METHODS: To address this uncertainty, eligible studies were systematically searched and retrieved from various databases including Cochrane Library, EMBASE, PubMed, Web of Science, CNKI, and Wanfang database. The search was conducted until September 01, 2023. The collected literature was then subjected to independent analysis by two authors. The pooled odds ratio along with the corresponding 95% confidence interval was calculated using different genetic models. Additionally, sensitivity and cumulative analyses were performed to assess the stability of the obtained results. RESULTS: A total of 29 case-control studies involving 8850 cases and 9286 controls were included in the present analysis. The findings revealed that the TNF-α rs1800629 polymorphism increased the risk of cervical cancer under the allele genetic model (A vs. G: OR = 1.277, 95% CI = 1.104-1.477, P = 0.001) in the general population. Subgroup analysis based on ethnicity demonstrated that this polymorphism was associated with an increased risk of cervical cancer in Caucasian and African women, but not in Asians. Furthermore, subgroup analysis based on country of origin indicated a significant correlation between the TNF-α rs1800629 polymorphism and an increased risk of cervical cancer in American and Chinese women, but not in Iranian women. CONCLUSIONS: The findings from this meta-analysis suggest that the TNF-α rs1800629 polymorphism is a risk factor for cervical cancer in the general population, particularly in Caucasian and African women. However, further well-designed studies are warranted to validate these findings.


Assuntos
Predisposição Genética para Doença , Polimorfismo de Nucleotídeo Único , Fator de Necrose Tumoral alfa , Neoplasias do Colo do Útero , Humanos , Neoplasias do Colo do Útero/genética , Feminino , Fator de Necrose Tumoral alfa/genética , Estudos de Casos e Controles , Fatores de Risco , Prognóstico
19.
JMIR Med Inform ; 10(6): e34753, 2022 Jun 22.
Artigo em Inglês | MEDLINE | ID: mdl-35731549

RESUMO

BACKGROUND: Cervical cancer has been recognized as a preventable type of cancer. As the assessment of all the risk factors of a disease is challenging for physicians, information technology and risk assessment models have been used to estimate the degree of risk. OBJECTIVE: The aim of this study was to develop a clinical decision support system to assess the risk of cervical cancer. METHODS: This study was conducted in 2 phases in 2021. In the first phase of the study, 20 gynecologists completed a questionnaire to determine the essential parameters for assessing the risk of cervical cancer, and the data were analyzed using descriptive statistics. In the second phase of the study, the prototype of the clinical decision support system was developed and evaluated. RESULTS: The findings revealed that the most important parameters for assessing the risk of cervical cancer consisted of general and specific parameters. In total, the 8 parameters that had the greatest impact on the risk of cervical cancer were selected. After developing the clinical decision support system, it was evaluated and the mean values of sensitivity, specificity, and accuracy were 85.81%, 93.82%, and 91.39%, respectively. CONCLUSIONS: The clinical decision support system developed in this study can facilitate the process of identifying people who are at risk of developing cervical cancer. In addition, it can help to increase the quality of health care and reduce the costs associated with the treatment of cervical cancer.

20.
JBRA Assist Reprod ; 26(1): 142-144, 2022 01 17.
Artigo em Inglês | MEDLINE | ID: mdl-34672186

RESUMO

Carbon nanostructures are important nanomaterial with interesting physical and chemical properties. These nanostructures have been assessed for application in different fields of medicine, such as cancer detection and treatment, Parkinson disease, reproductive medicine, etc. This nanomaterial can be used in reproductive medicine as a drug delivery system, antifungal, antiviral, and antibacterial agent, condom-coating agent, enhancer of sperm fertilizing ability, ectopic pregnancy treatment, trophoblastic diseases, endometriosis, uterine fibroids, and Assisted Reproduction Techniques (ART) improvement. The other side of this coin involves various side effects of carbon nanostructures, especially negative effects on reproductive systems. All carbon nanostructures showed toxicity on the reproductive system by producing reactive oxygen species and oxidative stress. Less attention has been given to the unique properties of carbon nanostructures, except for their practical attractiveness, the other side of this coin, namely the risks and side effects of these compounds - especially in the case of a reproductive system that supports the survival and health of future generations. Therefore, we suggest paying particular attention to the negative aspects of the increasing use of carbon nanostructures.


Assuntos
Nanoestruturas , Medicina Reprodutiva , Carbono , Feminino , Humanos , Estresse Oxidativo , Gravidez , Técnicas de Reprodução Assistida
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