Kala Visvanathan

Recent studies propose fallopian tubes as the tissue origin for many ovarian epithelial cancers. To further support this paradigm, we assessed whether salpingectomy for treating ectopic pregnancy had a protective effect using the Taiwan Lon…

BackgroundCancer is the leading cause of death in Asian Americans (AA), the fastest-growing U.S. population group. Despite heterogeneity in socioeconomic status and health behaviors by ethnicity, few studies have assessed cancer outcomes ac…

BackgroundClinicians in the United States have rapidly adopted opportunistic salpingectomy for ovarian cancer prevention. However, little is known about racial and ethnic differences in opportunistic salpingectomy adoption. Surgical innovat…

BackgroundBilateral oophorectomy during a nonmalignant hysterectomy is frequently performed for ovarian cancer prevention in premenopausal women. Oophorectomy before menopause leads to an abrupt decline in ovarian hormones that could advers…

Evidence suggesting that high-grade serous ovarian cancers originate in the fallopian tubes has led to the emergence of opportunistic salpingectomy (OS) as an approach to reduce ovarian-cancer risk. In the U.S., some national societies now …

BackgroundEpithelial ovarian, fallopian tube, and primary peritoneal cancers have shared developmental pathways. Few studies have prospectively examined heterogeneity in risk factor associations across these three anatomic sites.MethodsWe i…

Repeated exposure to the acute proinflammatory environment that follows ovulation at the ovarian surface and distal fallopian tube over a woman's reproductive years may increase ovarian cancer risk. To address this, analyses included indivi…

BackgroundAspirin use is associated with reduced risk of several cancers. A pooled analysis of 12 case-control studies showed a 10% decrease in ovarian cancer risk with regular aspirin use, which was stronger for daily and low-dose users. T…

To further dissect the genetic architecture of colorectal cancer (CRC), we performed whole-genome sequencing of 1,439 cases and 720 controls, imputed discovered sequence variants and Haplotype Reference Consortium panel variants into genome…

Growing epidemiologic evidence supports chronic inflammation as a mechanism of ovarian carcinogenesis. An association between a circulating marker of inflammation, C-reactive protein (CRP), and ovarian cancer risk has been consistently obse…

Ovarian cancer risk factors differ by histotype; however, within subtype, there is substantial variability in outcomes. We hypothesized that risk factor profiles may influence tumor aggressiveness, defined by time between diagnosis and deat…

The prognosis of women diagnosed with invasive high-grade serous ovarian carcinoma (HGSC) is poor. More information about serous tubal intraepithelial carcinoma (STIC) and serous tubal intraepithelial lesions (STIL), putative precursor lesi…

Invasive epithelial ovarian cancer (EOC) is the most lethal gynecologic malignancy. The etiology of EOC remains elusive; however, experimental and epidemiologic data suggest a role for hormone-related exposures in ovarian carcinogenesis and…

PURPOSE: An understanding of the etiologic heterogeneity of ovarian cancer is important for improving prevention, early detection, and therapeutic approaches. We evaluated 14 hormonal, reproductive, and lifestyle factors by histologic subty…

Evidence on the association between vitamin D status and pancreatic cancer risk is inconsistent. This inconsistency may be partially attributable to variation in vitamin D regulating genes. We selected 11 vitamin D-related genes (GC, DHCR7,…

ObjectivePreclinical studies suggest that abrupt hormone deprivation caused by oophorectomy, leads to obesity and its metabolic sequelae. The purpose of the current study was to examine the association between oophorectomy and body fatness …

Bilateral oophorectomy is used as a risk reduction strategy in BRCA1/2 mutation carriers, although data on long-term side effects are not yet available. In the general population, oophorectomy, particularly at a young age, has been associat…

ObjectiveTo estimate whether the protective effect of premenopausal bilateral oophorectomy on breast cancer risk is mitigated by estrogen therapy use after surgery.MethodsIn pooled data from four population-based case-control studies spanni…

Bilateral oophorectomy is often performed during hysterectomy for benign conditions and can reduce breast cancer risk by 20%-50% when performed at younger ages. Accuracy of estimating the decrease in breast cancer risk associated with bilat…

Ovarian carcinoma is composed of a heterogeneous group of tumors with distinct clinico-pathological and molecular features. Alteration of telomerase activity has been reported in ovarian tumors but the pattern of telomere length in their sp…

Abstract Background: Bilateral oophorectomy at early ages (<40 years) is recognized to lower breast cancer risk. Among U.S. women, oophorectomy is often performed with hysterectomy for benign conditions such as endometriosis and uterine …

Bilateral oophorectomy is often performed during hysterectomy for benign conditions and can reduce breast cancer risk by 20%–50 % when performed at younger ages. Accuracy of estimating the decrease in breast cancer risk associated with bila…

PURPOSE To update the 2002 American Society of Clinical Oncology guideline on pharmacologic interventions for breast cancer (BC) risk reduction. METHODS A literature search identified relevant randomized trials published since 2002. Primary…

The goal of ovarian cancer screening is to detect disease when confined to the ovary (stage I) and thereby prolong survival. We believe this is an elusive goal because most ovarian cancer, at its earliest recognizable stage, is probably not…