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Featured researches published by Cha Han.


Archives of Gynecology and Obstetrics | 2015

Diagnostic and therapeutic advancements for aerobic vaginitis

Cha Han; Wenjuan Wu; Aiping Fan; Yingmei Wang; Huiying Zhang; Zanjun Chu; Chen Wang; Fengxia Xue

BackgroundAerobic vaginitis (AV) is a newly defined clinical entity that is distinct from candidiasis, trichomoniasis and bacterial vaginosis (BV). Because of the poor recognition of AV, this condition can lead to treatment failures and is associated with severe complications, such as pelvic inflammatory disease, infertility, preterm birth and foetal infections.ObjectiveThis review describes the diagnosis and treatment of AV and the relationship between AV and pregnancy.ResultsThe characteristics of AV include severely depressed levels of lactobacilli, increased levels of aerobic bacteria and an inflamed vagina. The diagnosis is made by microscopy on wet mounts of fresh vaginal fluid, and some distinct clinical features are recognized. Vaginal suppositories that contain kanamycin or clindamycin have shown curative effects in nonpregnant women. Additionally, the application of topical probiotics can restore the vaginal flora and reduce the recurrence of AV. Clindamycin vaginal suppositories and probiotics may be a better choice for gravida with AV than metronidazole. AV requires prompt attention, and the early diagnosis and treatment of AV during pregnancy significantly improves perinatal outcomes.ConclusionFurther research is needed to define the pathogenesis, diagnostic criteria and standard treatment guidelines for AV.


Gynecologic and Obstetric Investigation | 2016

Analysis of the Risk Factors for Aerobic Vaginitis: A Case-Control Study.

Nv Geng; Wenjuan Wu; Aiping Fan; Cha Han; Chen Wang; Yingmei Wang; Fengxia Xue

Aims: Aerobic vaginitis (AV) is a newly defined clinical entity which may interfere with womens reproductive health and have negative effects on pregnancy. This study was to identify the risk factors for AV. Methods: Participants in this case-control study included healthy women and women with AV. All participants completed a standardized questionnaire covering sociodemographic factors, sexual behaviors, personal hygiene habits and health behaviors. Uni- and multivariate logistic regression analyses were used for statistical evaluation. Results: A total of 290 women of reproductive age were enrolled. In the multivariate analysis, unmarried status (odds ratio [OR] 2.606, 95% confidence interval [CI] 1.257-5.402), use of an intrauterine device (OR 4.989, 95% CI 1.922-12.952), long-term use of antibiotics (OR 11.176, 95% CI 1.363-91.666) and frequent vaginal douching (OR 4.689, 95% CI 1.363-16.135) were independent risk factors for AV. On the contrary, consistent condom use (OR 0.546, 95% CI 0.301-0.991) and college-level education or above (OR 0.255, 95% CI 0.131-0.497) were independent protective factors. Conclusion: Measures that may be considered to prevent AV include enhancing education to improve womens knowledge related to reproductive health, especially unmarried women, encouraging them to consistently use condoms as a contraceptive method, to avoid long-term use of antibiotics and to stop frequent vaginal douching.


Journal of Lower Genital Tract Disease | 2016

Verrucous Carcinoma of the Vulva: A 20 Year Retrospective Study and Literature Review.

Guoyan Liu; Qianwen Li; Xiaobin Shang; Zheng Qi; Cha Han; Yingmei Wang; Fengxia Xue

Objective The aim of the study was to assess the clinicopathological characteristics of patients with verrucous carcinoma (VC) of the vulva. Materials and Methods We reviewed data on the age, disease course, clinical manifestation, pathologic diagnosis, treatment, and follow-up of patients with vulvar VC who were treated at Tianjin Medical University General Hospital and cases that were reported in the Chinese and English literature during the past 20 years. Results Six cases were identified in Tianjin Medical University General Hospital, the mean age of patients was 55 years, and their mean disease course was 26 months. Primary symptoms were exophytic neoplasm with pruritus and/or pain. Surgical treatment included wide local excision, simple vulvectomy, and radical vulvectomy with or without lymph node dissection in the groin. Vulvar VC occurred simultaneously with vulvar intraepithelial neoplasia in 2 cases and well-differentiated squamous cell carcinoma in 2 cases. The mean follow-up was 16.8 months with no recurrence in those 6 cases. During the 20-year period, 20 and 41 cases were reported in Chinese and English literature, respectively. Three cases were misdiagnosed with giant condyloma acuminatum in China. One case (1/20) was reported with coexistent squamous carcinoma in Chinese literature and 8 cases (8/41) in the English literature. The recurrence rate was 12.5% (2/19) and 17.5% (7/40) in Chinese and English literature, respectively. Conclusions Vulvar VC is a distinct type of slow-growing, nonmetastatic tumor with unclear etiology. These tumors should be distinguished from giant condyloma acuminatum and well-differentiated squamous cell carcinoma. Surgery is the most effective treatment.


Taiwanese Journal of Obstetrics & Gynecology | 2015

In vitro fertilization complicated by rupture of tubo-ovarian abscess during pregnancy

Cha Han; Chen Wang; Xiao-Juan Liu; Nv Geng; Yingmei Wang; Aiping Fan; Bibo Yuan; Fengxia Xue

OBJECTIVE Pelvic abscess during pregnancy is an uncommon complication, but can lead to adverse perinatal outcomes during pregnancy. CASE REPORT We present a patient who developed rupture of a tubo-ovarian abscess during pregnancy following in vitro fertilization and embryo transfer. Thirty-eight reported cases are reviewed, and transvaginal oocyte retrieval, genital tract infections, endometrioma, and previous pelvic surgery are considered as risk factors for pelvic abscess during pregnancy. CONCLUSION Prolonging gestational duration when an infection situation is allowed is the principle of treatment.


Gynecological Endocrinology | 2014

Endometrial carcinoma in a 15-year-old obese patient with persistent uterine bleeding

Guoyan Liu; Yingmei Wang; Xuhong Zhang; Bibo Yuan; Cha Han; Fengxia Xue

Abstract Endometrial carcinoma is the most common malignancy of the upper female genital tract but is rare in teenagers. Here, we report the case of a 15-year-old, nulliparous, morbidly obese female with complaints of asthenia and menometrorrhagia lasting for six months. On examination, the patient had an enlarged uterus approximately 14 gestational weeks in size, and ultrasound revealed an intrauterine mass and polycystic ovaries. An endometrial biopsy performed during hysteroscopy revealed endometrioid adenocarcinoma, and magnetic resonance imaging showed myometrial invasion. The patient underwent a laparotomy involving total abdominal hysterectomy, right salpingo-oophorectomy, wedge-shape dissection of the left ovary, and pelvic and para-aortic lymphadenectomy. We analyze the pathogenesis of endometrial carcinoma in this case and discuss the risk factors for endometrial carcinoma, especially in young women. Gynecologists should be vigilant for persistent abnormal uterine bleeding and other signs of endometrial carcinoma in young women, especially those who have risk factors for the disease.


Oncotarget | 2018

Diagnostic value of the 2011 international federation for cervical pathology and colposcopy terminology in predicting cervical lesions

Aiping Fan; Chen Wang; Liqin Zhang; Ye Yan; Cha Han; Fengxia Xue

Objective To evaluate the diagnostic accuracy of the 2011 International Federation for Cervical Pathology and Colposcopy (IFCPC) colposcopic terminology. Methods The clinicopathological data of 2262 patients who underwent colposcopy from September 2012 to September 2016 were reviewed. The colposcopic findings, colposcopic impression, and cervical histopathology of the patients were analyzed. Correlations between variables were evaluated using cervical histopathology as the gold standard. Results Colposcopic diagnosis matched biopsy histopathology in 1482 patients (65.5%), and the weighted kappa strength of agreement was 0.480 (P<0.01). Colposcopic diagnoses more often underestimated (22.1%) than overestimated (12.3%) cervical pathology. There was no significant difference between the colposcopic diagnosis and cervical pathology agreement among the various grades of lesions (P=0.282). The sensitivity, specificity for detecting high-grade lesions/carcinoma was 71.6% and 98.0%, respectively. Multivariate analysis showed that major changes were independent factors in predicting high-grade lesion/carcinoma, whereas transformation zone, lesion size, and non-stained were not statistically related to high-grade lesion/carcinoma. Conclusions The 2011 IFCPC terminology can improve the diagnostic accuracy for all lesion severities. The categorization of major changes and minor changes is appropriate. However, colposcopic diagnosis remains unsatisfactory. Poor reproducibility of type 2 transformation zone and the significance of leukoplakia require further study.


Journal of Medical Virology | 2018

Factors affecting residual/recurrent cervical intraepithelial neoplasia after cervical conization with negative margins: FAN et al.

Aiping Fan; Chen Wang; Cha Han; Yingmei Wang; Fengxia Xue; Liqin Zhang

To identify factors for predicting residual or recurrent cervical intraepithelial neoplasia (CIN) after cervical conization with negative margins. A total of 172 patients with histologically verified high‐grade squamous intraepithelial lesions who underwent conization with negative margins were recruited at the General Hospital of Tianjin Medical University from December 2006 to January 2016. Follow‐up comprised clinical examination, a liquid‐based cytology test, a human papillomavirus (HPV) DNA genotyping test, colposcopy assessment, and if indicated, colposcopy‐directed punch biopsy. The Kaplan‐Meier method was used to analyze the median recurrent time, whereas log‐rank tests and Cox regression models were used to determine the predictors of residual/recurrent CIN. Fourteen residual/recurrent cases (8.1%) were identified in 172 patients. In univariate analysis, cytologic abnormalities on follow‐up (P = .000), conization method (P = .017), HPV positivity at any visit (P = .000), persistent HPV infection postconization (P = .000), persistent infection with the same HPV genotype (P = .000), and HPV positivity at 18 months after conization (P = .000) were predictive factors of residual/recurrent CIN. The results of multivariate analysis further revealed that persistent HPV infection postconization (P = .035), HPV positivity at 18 months after conization (P = .017), and cytologic abnormalities on follow‐up (P = .000) had an increased risk of residual/recurrent CIN. During follow‐up, patients with persistent HPV infection or cytologic abnormalities were at high risk of residual/recurrent CIN and should be identified for close surveillance and monitoring. Meanwhile, patients with HPV who became negative within 18 months after treatment had a low risk of recurrence.


Clinical and Experimental Hypertension | 2018

Ferulic acid ameliorated placental inflammation and apoptosis in rat with preeclampsia

Yuanyuan Chen; Fengxia Xue; Cha Han; Huiyun Yang; Lulu Han; Ke Li; Jie Li; Qian Xu; Zengyan Li; Bibo Yuan; Limin Yu; Xiaoli Gao; Ye Yan

ABSTRACT Preeclampsia (PE) occurs specifically during pregnancy characterized by new-onset hypertension. The pathogenesis of PE was complicated, and inflammation may be central to the pathogenesis of PE. Ferulic acid (FA) is recognized to prevent cell damage and apoptosis induced by oxidative stress and inflammation. In our study, we used NG-nitro-l-arginine methyl ester (L-NAME)-induced rat model of PE to investigate whether FA improved PE and its possible mechanism. We found that FA significantly reduced blood pressure, urine volume, and urinary protein level in rats with PE. Meanwhile, FA decreased L-NAME induced higher expression of circulating TNF-α、IL-6、IL-1β and PlGF, it reduced placental TNF-α and NF-κB p65. Furthermore, FA rescued L-NAME induced decreasing expression of IL-4 and IL-10 expression in the circulation and placenta of rats. FA also ameliorated placental apoptosis in L-NAME induced rats by increasing Bcl-2 whereas decreasing Bax expression in placenta. It suggested FA as a potential candidate for the treatment of various disorders including L-NAME induced preeclampsia in rats through decreasing placental inflammation and apoptosis.


Cancer Biology & Therapy | 2018

Ovarian dysgerminoma in pregnancy: A case report and literature review

Yuanyuan Chen; Ying Luo; Cha Han; Wenyan Tian; Wen Yang; Yingmei Wang; Fengxia Xue

ABSTRACT Background: Dysgerminoma is an uncommon malignant tumor arising from the germ cells of the ovary. Its association with pregnancy is extremely rare; the incidence is about 0.2–1 per 100,000 pregnancies. Because of its infrequency, there are few recommendations regarding its management in pregnancy; therefore, it is important to discuss and summarize the treatment strategy. Case: We presented a case of a 23-year-old pregnant woman with a large dysgerminoma originated from the right ovary, which had the unusual coincidence of being associated with an abdominal desmoid tumor simultaneously. We did not find any similar cases published in the PubMed database after 1947. A cesarean section was performed at 34 + 6 weeks gestation secondary to her abdominal pain worsening. The patient delivered a healthy boy and had fertility-preserving surgery, followed by 6 cycles of chemotherapy. This case is compared with 21 other reported cases of pure ovarian dysgerminoma in the literature to evaluate the clinical characteristics, feto-maternal compromise, treatment, long-term survival, and fertility outcome. Conclusion: The treatment strategy in women with ovarian dysgerminoma should be discussed and structured on an individual basis. If pregnancy is desired, surgical intervention undertaken in the second trimester seems to be the first choice. When chemotherapy is indicated, unless delivery can be accomplished within a few weeks of diagnosis, it should not necessarily be delayed until after delivery. Good reproductive function and high survival rate can be achieved in patients treated with conservative surgery and adjuvant chemotherapy.


International Journal of Gynecology & Obstetrics | 2017

Predictive value of serum HE4 and CA125 concentrations for lymphatic metastasis of endometrial cancer

Yingmei Wang; Cha Han; Fei Teng; Zhaoyi Bai; Wenyan Tian; Fengxia Xue

To evaluate the predictive value of serum HE4 and CA125 concentrations in the preoperative prediction of risk of lymph node metastasis in endometrial cancer.

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Fengxia Xue

Tianjin Medical University General Hospital

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Yingmei Wang

Tianjin Medical University General Hospital

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Aiping Fan

Tianjin Medical University General Hospital

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Chen Wang

Tianjin Medical University General Hospital

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Bibo Yuan

Tianjin Medical University General Hospital

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Liqin Zhang

Tianjin Medical University General Hospital

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Nv Geng

Tianjin Medical University General Hospital

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Guoyan Liu

University of Texas MD Anderson Cancer Center

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Huiying Zhang

Tianjin Medical University General Hospital

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Wenjuan Wu

Tianjin Medical University General Hospital

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