检索结果-南通市图书馆

Histo-Phenotypic Aspects of Breast Cancer in Women under 40 Years Old, in Yaoundé

Open Journal of Obstetrics and Gynecology 2024年第3期14卷 451-465页

作者： um esther meka ngo Zambo Zambo Coralie Mendouga Menye Kodoumé Motolouze Matene Mengue Obalemba Etienne Atenguena Department of Gynecology-Obstetrics Faculty of Medicine and Biomedical Sciences of the University of Yaoundé I Yaoundé Cameroon Department of Morphological Sciences-Pathological Anatomy Faculty of Medicine and Biomedical Sciences of the University of Yaoundé I Yaoundé Cameroon Department of Internal Medicine and Specialties Faculty of Medicine and Biomedical Sciences of the University of Yaoundé I Yaoundé Cameroon

Introduction: Breast cancer is the most common cancer in women worldwide, with an increasing incidence. Although it is rare and no much studied in young women, it represents 7% of cases worldwide and often appears more aggressive with a poor prognosis compared to its counterpart in older women. The main objective of our study was to describe the histological and phenotypic aspects of breast cancer in women of age under 40. Methodology: We conducted a descriptive and analytical cross-sectional study, with retrospective collection of data over a period of 05 years. All women diagnosed with breast cancer were included and divided into 2 study groups: under 40 years old and over 40 years old. Data were analyzed using SPSS version 23.0 software, compared using the Chi square or Fisher exact test. A p value Results: We retained 196 files, either 89 for those under 40 and 107 for those over 40. Young patients with breast cancer had a higher stage, grade and tumor size. Lymph node involvement was more observed in women under 40 years (69.6% vs 53.2%). Older women were more likely to be hormone receptor positive (54.2% vs 38.2%);p = 0.018. HER-2 overexpression was higher in women younger than 40 years (39.32% vs 25.23%);p = 0.080 with a high Ki67 proliferation index (30.3% versus 2.8%);p 0.001. Triple-negative and Her-2 tumors were much more frequent in young women (48.3% vs. 36.4%;p = 0.063) and (17.97% vs. 10.3%;p = 0.125). Conclusion: Breast cancer in young women remains more aggressive and is dominated by triple negative and Her-2 phenotypes.

关键词： Breast Cancer Young Women Yaoundé

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Determinants of Early Survival of Breast Cancer Patients in Yaoundé-Cameroon

引用

Open Journal of Obstetrics and Gynecology 2024年第3期14卷 487-501页

作者： um esther meka ngo Junie Annick Metogo Ntsama Kodoumé Motolouze Naomi Marie Laurene Ndtoungou Schouame Obalemba Etienne Atenguena Claude Cyrille Noa Ndoua Robinson Enow Mbu Faculty of Medicine and Biomedical Sciences The University of Yaoundé 1 Yaoundé Cameroon Yaoundé Gyneco-Obstetric and Pediatric Hospital Yaoundé Cameroon Hospital Center for Research and Application in Endoscopic Surgery and Human Reproduction Yaoundé Cameroon Yaoundé General Hospital Yaoundé Cameroon

Introduction: Breast cancer is one of the leading causes of death worldwide. We carried out this study with the aim of evaluating the determinants of early survival of women with breast cancer in two hospitals in the city of Yaoundé. Methodology: This was an analytical cross-sectional study with retrospective and prospective data collection of breast cancer patients during 6 years in two Hospitals of Yaoundé from January 2017 to December 2022. We consulted the files in search of epidemiological, clinical, paraclinical, therapeutic and survival variables. We completed the survival data directly from the patients or their relatives after their consent. We analyzed the data using SPSS version 23.0 software. Survival analysis was done using the Kaplan-Meier method and survival curves were compared using the Log Rank test. Factors influencing survival were evaluated using the Cox model. The significance threshold (P value) was set at 0.05 at 95% confidence interval. The study was approved by the ethics committees. Results: We included 500 patients whose ages varied between 22 and 83 years with a mean age of 47.19 ± 11.61 years. The most represented age group was 30 to 45 years old (45.8%). Less than half (41.6%) were postmenopausal. The most frequent reason for consultation was a breast lump (79.9%). The most common clinical stage at presentation was stage-3 (47.6%). Infiltrating ductal carcinoma was the most represented histological type (84.7%). The most represented histological grade was grade 2 (40.2%). Immunohistochemistry was performed in 34.20% of cases. The most represented molecular subtype was triple negative (41.8%) followed by Luminal A (30%). Concerning treatment, 17.2% did not receive any, 45% had surgery, 79.4% had chemotherapy, 34.2% hormone therapy, and 14.6% radiotherapy. The survival of patients with breast cancer at 1, 2, 3, 4 and 5 years was respectively 90.6%;83.1%;74.2%;69.8% and 59.2%. The median survival was not reached;however, the first quartil

关键词： Determinants Early Survival Breast Cancer Yaoundé

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Maternal and Foetal Outcomes Associated with Caesarean Deliveries in Patients with Severe Preeclampsia in Two Teaching Hospitals, Yaoundé

引用

Open Journal of Obstetrics and Gynecology 2018年第13期8卷 1271-1281页

作者： Essiben Félix ngo um meka esther Mve Koh Valère Gwos Laurentine Ojong Samuel Foumane Pascal Faculty of Medicine and Biomedical Sciences University of Yaounde Yaounde Cameroon Yaoundé Central Hospital Yaounde Cameroon Yaounde Gynaeco-Obstetric and Paediatric Hospital Yaounde Cameroon Yaounde Teaching Hospital Centre Yaounde Cameroon

Introduction: Severe preeclampsia is a frequent cause of maternal death, and also a frequent indication for caesarean deliveries when faced with the need to expedite delivery. We sought complications specific to caesarean deliveries in patients with severe preeclampsia. Methods: It was a case-control study carried out over 6 months, from December 1st, 2015 to May 31st, 2016 at the Yaoundé Central and the Yaoundé Gynaeco-Obstetric and Paediatric Hospitals. We evaluated 159 women undergoing a caesarean delivery to assess the risk of maternal and foetal postoperative complications in patients with severe preeclampsia. Significance level was set at 0.05. Results: The incidence of postoperative complications stood at 26.4%. Maternal and foetal complications were more frequent in preeclamptic women at 54.5% versus 11.5% (p um convulsions (RR = 3, p < 0.001) headaches resistant to first-line analgesics (RR = 3, p < 0.001), Disseminated Intravascular Coagulation (DIC) (RR = 2.92, p < 0.001), a cute pulmonary oedema (RR = 2.92, p < 0.001), prematurity (RR = 4.43, p < 0.001), neonatal asphyxia (RR = 2.93, p < 0.001), and hyaline membrane disease (RR = 2.93, p Conclusion: Severe preeclampsia is associated with an increased risk of postoperative complications.

关键词： Preeclampsia Postoperative Complications Caesarean Section Yaoundé

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Risk Factors for Geo-Helminthiasis in Children Aged 6 - 36 Months in a Rural Health District in Cameroon

引用

Open Journal of Pediatrics 2024年第2期14卷 391-400页

作者： Isabelle Mekone Nkwele Monono Naiza Gervais Talla Kamga Hugues Nana Djeunga Jeannette Epée ngoue Patricia Epée Eboumbou Suzanne ngo um Sap Evelyn Mah Mungeh Joseph Kamgno Department of Pediatrics Faculty of Medicine and Biomedical Sciences University of Yaoundé I Yaoundé Cameroon Department of Internal Medicine and Paediatrics Faculty of Health Sciences University of Buea Buea Cameroon Centre de Recherche sur les Filarioses et autres Maladies Tropicales (CRFilMT) Yaoundé Cameroon Department of Clinical Sciences Faculty of Medicine and Pharmaceutical Sciences University of Douala Douala Cameroon Department of Public Health Faculty of Medicine and Biomedical Sciences University of Yaoundé I Yaoundé Cameroon

Introduction and Objectives: Soil-Transmitted-Helminthiasis (STH) is a public health problem in Cameroon. The control strategies currently in place, particularly chemoprevention, has shortcomings linked to the target population, which are school-age children. The objective was to determine the prevalence and the risk factors associated with geo-helminthiasis in children aged 0 to 3 years in a rural health district. Method: From December 2020 to May 2021, a descriptive and analytical cross-sectional study of 376 children between 6 and 36 months was carried out in the Akonolinga health district. This was a cluster sampling in 4 health areas. Stool samples were collected and analysed using the mini-FLOTAC method. The results expressed as the number of eggs per gram of stool. A questionnaire on socio-demographic and lifestyle data was administered to the parents. The Chi-squared test was used to measure the association between geo-helminth infection and the data collected. A multivariate analysis using logistic regression was performed (p 0.05). Results: The prevalence of STH was 19.4% (Ascaris lumbricoides: 16% and Trichuris trichiura: 8%). Risk factors were: consumption of contaminated water (AOR = 1.93 [1.03 - 3.6];p = 0.040), early contact of the child with the ground (before age of 4 months) (AOR = 4.9 [2.1 - 11.37];p .001), habit of walking barefoot (AOR = 2.91 [1.1 - 7.97];p = 0.038), and living in a habitat with unpaved ground (AOR = 7.4 [1.55 - 35.7];p = 0.012). Conclusion: The prevalence of STHs in infants was high. Preventive chemotherapy should be extended to this age-group, and other measures intensified.

关键词： Akonolinga Soil-Transmitted-Helminths Children Aged 0 - 3 Years Risk Factors

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Solar‑Driven Sustainability:Ⅲ–ⅤSemiconductor for Green Energy Production Technologies

引用

Nano-Micro Letters 2024年第11期16卷 445-478页

作者： Chandran Bagavath Jeong‑Kyun Oh Sang‑Wook Lee Dae‑Young um Sung‑Un Kim Veeramuthu Vignesh Jin‑Seo Park Shuo Han Cheul‑Ro Lee Yong‑Ho Ra Division of Advanced Materials Engineering Engineering CollegeResearch Center for Advanced Materials Development(RCAMD)Jeonbuk National UniversityJeonju 54896Republic of Korea

Long-term societal prosperity depends on addressing the world’s energy and environmental problems,and photocatalysis has emerged as a viable *** the efficiency of photocatalytic processes is fundamentally achieved by optimizing the effective utilization of solar energy and enhancing the efficient separation of photogenerated *** has been demonstrated that the fabrication ofⅢ–Ⅴsemiconductor-based photocatalysts is effective in increasing solar light absorption,long-term stability,large-scale production and promoting charge *** focused review explores on the current developments inⅢ–Ⅴsemiconductor materials for solar-powered photocatalytic *** review explores on various subjects,including the advancement ofⅢ–Ⅴsemiconductors,photocatalytic mechanisms,and their uses in H2 conversion,CO_(2)reduction,environmental remediation,and photocatalytic oxidation and reduction *** order to design heterostructures,the review delves into basic concepts including solar light absorption and effective charge *** also highlights significant advancements in green energy systems for water splitting,emphasizing the significance of establishing eco-friendly systems for CO_(2)reduction and hydrogen *** main purpose is to produce hydrogen through sustainable and ecologically friendly energy *** review intends to foster the development of greener and more sustainable energy source by encouraging researchers and developers to focus on practical applications and advancements in solar-powered photocatalysis.

关键词： Green energy system Hydrogen evolution CO_(2)reduction Ⅲ-Ⅴsemiconductors Photo electrochemical water splitting

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

An Overview of Adolescent Pregnancy in Yaoundé, Cameroon

引用

Open Journal of Obstetrics and Gynecology 2022年第11期12卷 1191-1201页

作者： Christiane Jivir Fomu Nsahlai Claude-Audrey Meguieze Fatimatouz Zahra’ou esther ngo um meka Eric Nseme Etouckey Marie Therese Abena Obama Obstetrics and Gynecology Essos Hospital Centre Yaoundé Cameroon Department of Obstetrics and Gynecologist Faculty of Medicine and Biomedical Sciences University of Yaoundé 1 Yaoundé Cameroon Department of Pediatrics Faculty of Medicine and Biomedical Sciences University of Yaoundé 1 Yaoundé Cameroon Faculty of Medicine and Biomedical Sciences University of Yaoundé 1 Yaoundé Cameroon

Background: Adolescent pregnancy is high risk and every area should have data specific to it. We here attempted to determine the characteristics of adolescent pregnancy in Cameroon, with special reference to antenatal care (ANC). Materials and Methods: The present cross-sectional descriptive study was carried out in four secondary level hospitals in Yaounde, Cameroon from March to May 2022. Our study included adolescent pregnant females between ages 10 and 19 who received prenatal/post-partum care at these facilities. Results: We studied 101 adolescent pregnant females (pregnant or post-partum). The mean age was 17.6 ± 1.3 years. Most of them were single, Christian, had a secondary level of education, lived in a two-parent home and were from the Central region. ANC was provided by midwives for most of them but prenatal work-up was not done most of the time. Overall quality of ANC was considered poor. Conclusions: Adolescent pregnant females were mainly high-school students and lived at home with both parents. ANC quality was considered poor. These data may be important to improve reproductive health care and may be generalizable to some extent.

关键词： Adolescent Antenatal Care Yaoundé

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

A comparative analysis of spontaneous fertility after myomectomy by laparotomy associated or not with a“second look”laparoscopy

引用

Laparoscopic, Endoscopic and Robotic Surgery 2019年第2期2卷 27-30页

作者： Etienne Belinga Daniel Antony Bikak Djima Bruno Ela Ondo esther Juliette ngo um meka Emile Telesphore Mboudou Pascal Foumane Department of Obstetrics and Gynecology Faculty of Medicine and Biomedical Sciencesthe University of Yaounde ICameroon Higher Institute of Health Sciences University of the MountainsCameroon Department of Epidemiology Higher Institute of Health SciencesUniversity of the MountainsCameroon

Objective:The importance of a“second look”laparoscopy for adhesion formation after myomectomy by laparotomy in improving fertility is not clearly defined in our *** aim of this study was to compare spontaneous fertility after myomectomy by laparotomy between women who underwent a“second look”laparoscopy and those who did ***:We conducted an analytical cross-sectional study with retrospective data collection from January 1,2008 to December 31,2015,comparing spontaneous fertility between patients who underwent“second-look”laparoscopy after myomectomy by laparotomy to those who did ***,data was collected from the records of patients included in the ***,through phone calls,informed consent for each participant was obtained after which inquiries were made regarding their fertility ***:After a period of 24 months,23 patients(47.9%)with“second look”laparoscopy conceived,compared to 37 patients(35.2%)without“second look”laparoscopy(p=0.136);and 24 patients(50.0%)with“second look”had term pregnancies compared to 39 patients(37.1%)without“second look”laparoscopy(p=0.134).Conclusion:Spontaneous fertility rates seemed to be improved after a“second look”laparoscopy,however,there was no statistically significant difference between spontaneous fertility rates obtained after myomectomy by laparotomy,irrespective of the fact that the patient had undergone a“second look”laparoscopy or not at Yaounde Gyneco-Obstetric and Pediatric Hospital.

关键词： Myomectomy Laparotomy Infertility Adhesions “Second look”laparoscopy

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chronic Anogenital Ulcerations and Polymicrobial Pelvic Infections: About a Case

引用

Open Journal of Obstetrics and Gynecology 2023年第1期13卷 82-87页

作者： Michèle Florence Mendoua Grâce Anita Nkoro Lucie Nguizaye Vanina ngono Akam esther ngo um Department of Gynaecology-Obstetrics Faculty of Medicine and Biomedical Sciences University of Yaounde I Yaounde Cameroon Department of Internal Medicine and Specialties Faculty of Medicine and Biomedical Sciences University of Yaounde I Yaounde Cameroon Department of Gynaecology-Obstetrics Faculty of Medicine and Pharmaceutical Sciences University of Douala Douala Cameroon

Genital ulceration is the loss of integrity of the mucous membranes (or genital skin) leaving the dermis uncovered and almost always accompanied by satellite lymphadenopathies. Beyond a month of evolution, it is said to be chronic. Sexually transmitted diseases are infections due to microbial agents among which parasites, bacteria, viruses and fungi that can be associated with each other to varying degrees. Sexually transmitted infections must be mentioned before any genital ulceration. Hence the interest of the case that we report of chronic anogenital ulcerations complicating a polymicrobial pelvic infection in a patient immunocompromised to HIV. The physical examination reveals a hypogastric sensitivity to deep palpation, the presence of a superinfected anogenital ulceration exposing the deep dermis covered with purulent serosities interesting the labia minora, the posterior vaginal fork, the anal region, the clitoris and an extension of the lesions to the gluteal fold is observed. We found a satellite lymphadenopathy in the right inguinal fold. The screening finds the HIV1 positive serology with a viral load of 28,000 copies, the herpes simplex 1&2 and Chlamydia trachomatis serologies were all positive. The genital samples are marked by the presence of bacterial vaginosis with Candida Albicans and Gardnerella Vaginalis, the presence of urogenital mycoplasmas of the Ureaplasma Urealyticum The pelvic ultrasound was in favor of a bilateral adnexitis. A protocol was put in place: the first step consisted of seat baths, antifungi and antibiotics administration: fluconazole 150 mg and tinidazole 2 g in single doses, then josamycin 1 g/24h in two doses per os for two weeks. The second stage consists of the administration of doxycycline 200 mg for 21 days, Aciclovir 500 mg for 10 days, and the administration of ARV (Tenofovir + Lamivudine + Dolutegravir) or one tablet daily. The evolution is marked by a progressive healing of the clitoris, the labia majora and labia min

关键词： Anogenital Ulceration Polymicrobial Infection

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Pregnancy on Bicornuate Unicollis Uterus: Diagnosis, Management and Prognosis in Underprivileged Areas: About a Case, Yaoundé-Cameroon

引用

Open Journal of Obstetrics and Gynecology 2021年第5期11卷 602-609页

作者： Armand Kamga Talom Felix Essiben Kingsley Sama Ombaku Forbang Ako esther ngo um meka Department of Obstetrics and Gynaecology Faculty of Medicine and Biomedical Sciences University of Yaounde I Yaounde Cameroon Yaounde Central Hospital Yaounde Cameroon Department of Medical Imaging and Radiology Faculty of Medicine and Biomedical Sciences University of Yaounde I Yaounde Cameroon Yaounde Gyneco-Obstetric and Pediatric Hospital Yaounde Cameroon

Background: A bicornuate uterus is a relatively common and often asymptomatic congenital uterine malformation. Objective: The aim of this work is to highlight the diagnostic difficulty in this case, as well as its therapeutic and prognostic aspects. We report here the case of a young girl carrying a pregnancy on an undiagnosed unicollis bicornuate uterus, which was initially diagnosed as an unruptured ectopic pregnancy. Conclusion: The bicornuate uterus still poses diagnostic difficulties, especially in disadvantaged populations due to the poor accessibility of diagnostic means.

关键词： Bicornous Uterus Cameroun Diagnosis Pregnancy Prognosis

来源：

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Indolo[3,2,1-jk]carbazole-derived planar electron transport materials realizing high efficiency in green phosphorescent organic light-emitting diodes

引用

Science China Materials 2023年第11期66卷 4437-4444页

作者： Sejeong um Unhyeok Jo Jun Yeob Lee School of Chemical Engineering Sungkyunkwan University 2066Seobu-roJangan-guSuwonGyeonggi16419Republic of Korea SKKU Advanced Institute of Nano Technology Sungkyunkwan University 2066Seobu-roJangan-guSuwonGyeonggi16419Republic of Korea SKKU Institute of Energy Science and Technology Sungkyunkwan University 2066Seobu-roJangan-guSuwonGyeonggi16419Republic of Korea

Two novel electron transporting materials(ETMs),2-(4,6-diphenyl-1,3,5-triazin-2-yl)indolo[3,2,1-jk]-carbazole(DPTrz-ICz)and 5,11-bis(4,6-diphenyl-1,3,5-triazin-2-yl)-2-phenylindolo[3,2,1-jk]carbazole(2DPTrz-ICz),were developed based on the indolo[3,2,1-jk]carbazole(ICz)core,combined with 2,4-diphenyl-1,3,5-triazine(DPTrz).The introduced ICz core in ETM exhibited enhanced intermolecular charge transport properties owing to its planar and rigid geometry and high triplet energy,demonstrating the potential of designing ***,2DPTrz-ICz,featuring high triplet energy of 2.84 eV,effectively prevented triplet exciton quenching and showed increased electron mobility owing to the activation of intermolecular hopping charge transfer facilitated by stacking *** two materials were utilized as ETMs in green phosphorescent organic light-emitting diodes.2DPTrz-ICz exhibited a superior external quantum efficiency of 21.5%,higher than that of the spirobifluorene-derived ETM.

关键词： electron transport layer indolocarbazole efficiency OLED

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：