Publications by authors named "John G Anema"

Article Synopsis
  • Renal cell carcinoma (RCC) shows a strong genetic link and a consistent male-to-female incidence ratio of 2:1, indicating potential genetic differences in susceptibility based on sex.
  • A study involving genome-wide association analysis found specific genetic markers linked to RCC risk that differ between men and women, confirming known risk loci and uncovering new male-specific ones.
  • The researchers suggest the need for larger studies to better understand the genetic factors contributing to the sex differences observed in RCC susceptibility.
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Objective: To evaluate the accuracy of radius, exophytic/endophytic, nearness to collecting system/sinus, anterior/posterior, and location relative to polar lines (RENAL), preoperative aspects and dimensions used for anatomical classification (PADUA), contact surface area (CSA), and preoperative assessment of volume preservation (PAVP) nephrometry scores in predicting postoperative renal functional outcomes after partial nephrectomy (PN). Few studies have compared the accuracy of tumor complexity systems directly in the same set of PN patients.

Materials And Methods: Patients treated with robotic, laparoscopic, or open PN having available imaging (n = 344) were examined.

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Background: Relative telomere length in peripheral blood leukocytes has been evaluated as a potential biomarker for renal cell carcinoma (RCC) risk in several studies, with conflicting findings.

Objective: We performed an analysis of genetic variants associated with leukocyte telomere length to assess the relationship between telomere length and RCC risk using Mendelian randomization, an approach unaffected by biases from temporal variability and reverse causation that might have affected earlier investigations.

Design, Setting, And Participants: Genotypes from nine telomere length-associated variants for 10 784 cases and 20 406 cancer-free controls from six genome-wide association studies (GWAS) of RCC were aggregated into a weighted genetic risk score (GRS) predictive of leukocyte telomere length.

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Previous genome-wide association studies (GWAS) have identified six risk loci for renal cell carcinoma (RCC). We conducted a meta-analysis of two new scans of 5,198 cases and 7,331 controls together with four existing scans, totalling 10,784 cases and 20,406 controls of European ancestry. Twenty-four loci were tested in an additional 3,182 cases and 6,301 controls.

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Background: Testicular germ cell tumors are the most common cancer diagnosed in young men, and seminomas are the most common type of these cancers. There have been no exome-wide examinations of genes mutated in seminomas or of overall rates of nonsilent somatic mutations in these tumors.

Objective: The objective was to analyze somatic mutations in seminomas to determine which genes are affected and to determine rates of nonsilent mutations.

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Objective: To evaluate whether surgeon factors, such as training and experience, have a strong impact on selection of surgical approach for treating renal cancers. Nephron-sparing surgery (NSS) has become the reference standard for tumors that are amenable to such an approach. Tumor size and configuration are important predictors of usage of NSS.

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Purpose: The use of partial nephrectomy and other kidney sparing approaches in national databases lags far behind practice patterns at major academic centers. The reasons and impact of this disparity are largely unknown. We examined the trend in kidney sparing approaches in a community based health care system to examine associated factors and impact on renal function.

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