Testicular vein thrombosis: Incidence of recurrent venous thromboembolism and survival.

PURPOSE: Testicular vein thrombosis (TVT) etiology, recurrence, and survival were compared with lower extremity deep vein thrombosis (DVT) in order to determine whether treatment guidelines for DVT could be applied to TVT. PATIENTS AND METHODS: An inception cohort of patients with confirmed TVT (January 1995-October 2015) was compared to a control group of patients with lower extremity DVT matched by age, gender, and diagnosis date. RESULTS: Thirty-nine men with TVT were identified; 15 (38%) with isolated TVT. Left testicular vein was affected in 77% patients; there were no cases of bilateral TVT. Cancer was over twofold more common in TVT patients (59% vs 28%, P = .01). Most cancers (78%) involved organs in proximity to the testicular vein. Although TVT patients were less frequently treated with anticoagulants (49% vs 97%, P = .0001), recurrence rates were similar to DVT group (TVT 4.2 vs DVT 1.1 per 100 patient-years, P = .11). Despite higher cancer prevalence, survival rates were similar between groups (31% vs 28%; P = .34). Major bleeding events were rare (one patient per group). CONCLUSIONS: Identifying TVT should prompt a search for a regional malignancy. Despite the high cancer prevalence and low utilization of anticoagulants, recurrent venous thrombosis and mortality rates are similar to DVT patients.

Overexpression of CIRP may reduce testicular damage induced by cryptorchidism.

PURPOSE: To investigate the protective effect of overexpression of cold-inducible RNA-binding protein (CIRP) on testicular damage induced by cryptorchidism. METHODS: Male BALB/c mice were made surgically cryptorchid and CIRP gene was transferred into the cryptorchid testis by in vivo electroporation. Seven or ten days after electroporation, the expression of CIRP, p53 and Fas mRNA and protein were analyzed by reverse-transcription polymerase chain reaction (RT-PCR) and immunoblotting, respectively. Meanwhile, Histopathological changes were observed by light microscope, and flow cytometry was used to detect testicular cell apoptosis. RESULTS: Testicular weights after transfection with pVAX1-CIRP or pVAX1 were 0.083+/-0.005 g and 0.065+/-0.004 g, respectively, on day 7(P < 0.05) and 0.078+/-0.004 g and 0.052+/-0.007 g, on day 10 (P < 0.05). Testicular cell apoptosis after transfection with pVAX1-CIRP or pVAX1 were 9.8+/-1.1 % and 20.7+/-1.3 %, respectively, on day 7 (P < 0.01) and 10.4+/-0.9 % and 27.5+/-1.2 %, on day 10 (P < 0.01). In addition, the expression of CIRP mRNA and protein in the testes transfected with pVAX1-CIRP were both increased (P < 0.05) at each indicated time point. Meanwhile, the expression of p53 was decreased on day 7 (P < 0.05) and Fas was decreased on day 10(P < 0.05). CONCLUSIONS: Overexpression of CIRP may reduce testicular damage induced by cryptorchidism by down-regulating the levels of p53 and Fas.

A cohort study of the effects of Vietnam service on testicular pathology of U.S. military working dogs.

Using histopathologic diagnoses made on necropsy material from 3,024 military working dogs (MWDs) who died from 1968 to 1973, we analyzed the effect of military service in the Republic of Vietnam on testicular pathology. Among 1,048 MWDs that died in Vietnam and had no reported developmental risk factors for testicular disease, significant excesses of testicular hemorrhage, epididymitis/orchitis, sperm granuloma, testicular degeneration, and seminoma were evident. Among 126 MWDs with prior Vietnam service who died at other duty stations outside Vietnam from 1968 to 1973, significant excesses of testicular degeneration and seminoma were likewise evident. Among 136 MWDs with prior Vietnam service that later died from 1974 to 1980, seminoma continued to be diagnosed in significant excess. In each instance, the odds ratio for the association between Vietnam service and seminoma was 2.0 or greater. Analysis of ever service by Corps Tactical Zones showed significant excesses of seminoma with each Corps area of service compared to Vietnam-era MWDs, but risk was highest in I Corps, particularly at Da Nang Port and Da Nang Air Base. This finding with respect to I Corps is consistent with certain human studies in Vietnam veterans and points to the need for further investigation of possible environmental exposures, particularly those associated to a greater extent with service in I Corps.

Encephalomyocarditis (EMC) virus-induced testicular lesion in BALB/c mice.

Characteristics of encephalomyocarditis (EMC) virus-induced testicular lesions were investigated in 4- and 8-week-old BALB/c male mice after intraperitoneal (i.p.) and intratesticular (left) (i.t.) inoculation of the D variant of EMC virus (EMC-D). Apart from variation in severity and incidence, the histopathological nature of the resultant testicular lesion was similar in all infected mice, and was characterized by degeneration and necrosis of germinal cells and spermatogonia with inflammatory infiltration. Almost all the inoculated left testes of the i.t. group developed marked lesions. In general, the virus titre in the testis and incidence of testicular lesions were higher in 4-week-old mice than in 8-week-old mice. In addition, testicular lesions developed earlier and with a higher incidence in the PBS-inoculated right testis of the i.t. group than in either testis of the i.p. group of the same age.