Publications by authors named "Alpa Patel"

Case-control studies of sun exposure and ultraviolet radiation (UVR) have consistently reported inverse associations with non-Hodgkin lymphoma (NHL) risk, but prospective studies have yielded mixed results. Few studies have explored these exposures in relation to multiple myeloma (MM) risk. To further evaluate these associations with NHL and MM risk and identify etiologically relevant exposure timing, we pooled data on 566,693 individuals from 6 United States (U.

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Background: The 313-variant polygenic risk score (PRS) provides a promising tool for clinical breast cancer risk prediction. However, evaluation of the PRS across different European populations which could influence risk estimation has not been performed.

Methods: We explored the distribution of PRS across European populations using genotype data from 94,072 females without breast cancer diagnosis, of European-ancestry from 21 countries participating in the Breast Cancer Association Consortium (BCAC) and 223,316 females without breast cancer diagnosis from the UK Biobank.

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Objective: Our objective was to investigate the associations of sleep duration and weekend catch-up sleep with cancer risk among US adults in the Cancer Prevention Study-3.

Methods: Cancer Prevention Study-3 is a prospective cohort of approximately 250,000 US adults aged 30-65years. At baseline (2006-2013), participants were asked to report their average daily sleep duration over the past year for weekdays and weekends separately.

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  • - The study aimed to explore the relationship between non-nutritive sweetener (NNS) consumption and diet quality, using data from the American Cancer Society's cancer prevention study with over 163,000 participants.
  • - Results showed that consumers of NNS generally had lower diet quality compared to non-consumers, as indicated by decreases in both the ACS diet score and the Healthy Eating Index scores with increased NNS intake.
  • - Additionally, the likelihood of having a low diet quality increased with higher NNS consumption, indicating that those who consumed 2 or more servings of NNS daily had significantly higher odds of poor diet quality.
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  • - Health care disparities have led to significant racial gaps in health outcomes, particularly in breast cancer mortality rates, where Black women face a higher mortality rate despite lower incidence compared to White women.
  • - Focus groups were conducted with Black women across the U.S. to explore their experiences and perceptions regarding participation in health research, revealing common barriers such as mistrust, lack of respect in healthcare settings, and logistical challenges.
  • - To improve research engagement among Black women, it's essential to recognize these barriers and foster trust by having knowledgeable research teams, involving community partners, and ensuring that the research holds meaning for the Black community.
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Purpose: To determine the relationship between germline pathogenic variants (PV) in cancer predisposition genes and the risk of ductal carcinoma in situ (DCIS).

Experimental Design: Germline PV frequencies in breast cancer predisposition genes (ATM, BARD1, BRCA1, BRCA2, CDH1, CHEK2, PALB2, RAD51C, and RAD51D) were compared between DCIS cases and unaffected controls and between DCIS and invasive ductal breast cancer (IDC) cases from a clinical testing cohort (n = 9,887), a population-based cohort (n = 3,876), and the UK Biobank (n = 2,421). The risk of contralateral breast cancer (CBC) for DCIS cases with PV was estimated in the population-based cohort.

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Background: Smoking cessation at any age has been shown to improve quality of life, decrease illness, and reduce mortality. About half of smokers attempt to quit each year, but only ∼ 7 % maintain long-term abstinence unaided. Few genetic factors have been consistently associated with smoking cessation, possibly due to poor phenotype definition.

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  • Pathogenic variants (PVs) in certain genes like BRCA1 and BRCA2 increase breast cancer risk, but it's unclear how risk varies based on the type and location of these variants.
  • This study analyzed breast cancer risks associated with different PV types and locations using data from 12 US studies and clinical cohorts involving over 64,000 women.
  • Results showed that women with specific exon PTVs had higher breast cancer risks, lower rates of ER-negative breast cancer, and were diagnosed at younger ages compared to those with other variants, with these patterns observed across multiple cohorts.
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Background: Black men consistently have higher rates of prostate cancer (PCA)- related mortality. Advances in PCA treatment, screening, and hereditary cancer assessment center around germline testing (GT). Of concern is the significant under-engagement of Black males in PCA GT, limiting the benefit of precision therapy and tailored cancer screening despite longstanding awareness of these disparities.

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Importance: Little is known about the causes of second primary cancers among individuals with a history of cancer. Descriptive studies have suggested that lifestyle factors, including excess body weight, may be important.

Objective: To investigate whether excess body weight is associated with the risk of a second primary malignant neoplasm among cancer survivors.

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  • Clinical genetic testing helps find cancer risks by identifying gene changes, but some of these changes are confusing because we don't know what they mean (called VUS).
  • Researchers studied a huge number of breast cancer patients and healthy people to understand these confusing gene changes better.
  • They found that their method of analyzing data closely matches what other experts say about which gene changes are harmless or harmful, giving more information about 785 unclear changes.
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Purpose: Sleep is a multi-dimensional human function that is associated with cancer outcomes. Previous work on sleep and cancer mortality have not investigated how this relationship varies by sex and cancer site. We investigated the association of sleep duration and perceived insomnia with site-specific and overall cancer mortality among participants in the Cancer Prevention Study-II.

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Purpose: We examined the one-year test re-test reliability and validity criterion of survey-assessed sleep duration collected from two separate questions.

Methods: The Activity Validation Sub Study included 751 participants of the Cancer Prevention Study-3 study to further investigate rest/activity cycles. Sleep duration was collected using three methods: survey, Daysimeter device, and sleep diary.

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Background: Longer overnight fasting (ONF) is a potential strategy for weight control. Although promising, the evidence from large population-based studies is limited.

Objectives: To examine the association of self-reported ONF duration with 3- and 6-y weight change in the American Cancer Society's Cancer Prevention Study-3 prospective cohort.

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In 2018, the authors reported estimates of the number and proportion of cancers attributable to potentially modifiable risk factors in 2014 in the United States. These data are useful for advocating for and informing cancer prevention and control. Herein, based on up-to-date relative risk and cancer occurrence data, the authors estimated the proportion and number of invasive cancer cases (excluding nonmelanoma skin cancers) and deaths, overall and for 30 cancer types among adults who were aged 30 years and older in 2019 in the United States, that were attributable to potentially modifiable risk factors.

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  • - The study investigates how genetic variants affect the relationship between heavy alcohol consumption and the risk of pancreatic cancer, utilizing data from a sizable European ancestry population.
  • - Researchers identified a new relevant genomic region (10p11.22) linked to pancreatic cancer risk and a specific SNP (rs7898449) that suggests this association is influenced by heavy alcohol consumption.
  • - The findings highlight the potential role of the neuropilin 1 gene in pancreatic cancer development, offering new insights into cancer risk factors, especially among heavy drinkers.
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Here, in a multi-ancestry genome-wide association study meta-analysis of kidney cancer (29,020 cases and 835,670 controls), we identified 63 susceptibility regions (50 novel) containing 108 independent risk loci. In analyses stratified by subtype, 52 regions (78 loci) were associated with clear cell renal cell carcinoma (RCC) and 6 regions (7 loci) with papillary RCC. Notably, we report a variant common in African ancestry individuals ( rs7629500 ) in the 3' untranslated region of VHL, nearly tripling clear cell RCC risk (odds ratio 2.

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Background: The incidence rates of endometrial cancer are increasing, which may partly be explained by the rising prevalence of obesity, an established risk factor for endometrial cancer. Hypertension, another component of metabolic syndrome, is also increasing in prevalence, and emerging evidence suggests that it may be associated with the development of certain cancers. The role of hypertension independent of other components of metabolic syndrome in the etiology of endometrial cancer remains unclear.

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The 313-variant polygenic risk score (PRS) provides a promising tool for breast cancer risk prediction. However, evaluation of the PRS across different European populations which could influence risk estimation has not been performed. Here, we explored the distribution of PRS across European populations using genotype data from 94,072 females without breast cancer, of European-ancestry from 21 countries participating in the Breast Cancer Association Consortium (BCAC) and 225,105 female participants from the UK Biobank.

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  • The study analyzed the age at lung cancer diagnosis and sex differences in individuals who never smoked, involving 33,793 participants from various regions including East Asia, the US, and the UK.
  • Results showed that in Chinese individuals, females were diagnosed at a younger age than males, with significant differences recorded in several locations, while patterns in other racial groups were inconsistent.
  • The findings suggest that there are notable sex differences in the age of diagnosis for lung cancer among non-smokers, highlighting the need for further research in this area.
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Background: Performing physical activity may provide analgesic benefit, although this effect is more established for noncancer pain rather than cancer pain. The relationship between physical activity and pain outcomes in adults with and without a history of cancer was examined.

Methods: Totals of 51,439 adults without a cancer history and 10,651 adults with a cancer history from the Cancer Prevention Study II Nutrition Cohort were included.

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Congenital pulmonary airway malformations (CPAM) compose the major part of congenital lung malformations (CLM) and have traditionally been treated by pulmonary lobectomy. In terms of surgical strategy, lobectomy has conventionally been the preferred treatment for CPAM localized to a single lobe. More recently, alternative approaches including lung-sparing resections (LSR), such as wedge or non-anatomic resections and segmentectomy, have been suggested.

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  • * Analyzed data from 48 studies across ten large cohorts, discovering significant associations between high GI food consumption and increased risks for several chronic diseases.
  • * Found that higher GI foods increase the incidence of type 2 diabetes, cardiovascular disease, and diabetes-related cancers, with statistical significance in their relative risk estimates.
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  • The study analyzed data from over 1 million women across various regions to explore the relationship between reproductive and hormonal factors and the risk of differentiated thyroid cancer (DTC).
  • Findings indicated that certain factors, such as younger age at menarche and menopause, use of hormone therapy, and previous surgeries like hysterectomy, were associated with an increased risk of DTC, while long-term oral contraceptive use and being post-menopausal were linked to a lower risk.
  • The researchers caution that the associations identified are relatively weak and recommend further studies to clarify the effects of sex steroid hormones on DTC risk.
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Background: Although the associations between genetic variations and lung cancer risk have been explored, the epigenetic consequences of DNA methylation in lung cancer development are largely unknown. Here, the genetically predicted DNA methylation markers associated with non-small cell lung cancer (NSCLC) risk by a two-stage case-control design were investigated.

Methods: The genetic prediction models for methylation levels based on genetic and methylation data of 1595 subjects from the Framingham Heart Study were established.

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