The Traits of Fresh and Frozen Semen on Brahman Bulls

The present study aimed to determine quality and parameters traits of both fresh and frozen semen in 4-year old Brahman bulls. Semen was collected from 5 bulls twice a week using artificial vagina in Ungaran ArtificialInsemination Center, Central Java, Indonesia. Immediately after collection, samples were evaluated for semen volume, color, odor, viscosity, mass movement, individual movement, spermatozoa concentration and livespermatozoa percentage. Sperm concentration was measured using a spectrophotometer. Good quality fresh semen was processed to be frozen semen. Parameters evaluated for frozen semen include spermatozoa individualmovement, live spermatozoa, and abnormal spermatozoa percentage. The results showed that the semen volume is 6.90 ± 0.54 whereas the average of sperm concentration, individual motility and live sperm are 1754.54 ± 212.67;65.50 ± 3.74% and 76.30 ± 2.64%, respectively. Meanwhile, for frozen semen, the average percentage of motility is 38.00 ± 2.74% while the average proportions of live sperm and abnormal sperm are respectively 45.20 ± 9.86% and 6.00 ± 2.83%. In conclusion, in average, all parameters of fresh and frozen semen of Brahman bulls are in normal range. Based on the Indonesian National Standard, frozen semen produced could be used for inseminatio

Single Nucleotide Polymorphism (SNP) 316 on Calpain Gene in Aceh Cattle

Genetic polymorphisms of μ-calpain, a calcium-dependent protease specifically expressed in muscle and related to meat tenderness, have been investigated in cattle worldwide, but not well documented in Indonesian beef cattle. This study was done to evaluate the frequency of SNP 316 in the μ-calpain gene in Aceh cattle, a local Indonesian beef cattle plays important role in the fulfillment of red meat for peoples in Aceh and its neighboring areas. For this purpose, genomic DNA was isolated from 29 sirloin meats samples collected from cull, female aceh cattle slaughtered at the Slaughter House of Banda Aceh. The cattle were purposively selected based on physical characteristics and hair colors referred to Indonesian law. For the SNP genotyping, PCR-RFLP methods were set up. The results showed all three genotypes namely CC, CG, and GG were found in Aceh cattle. The allele and genotype frequencies of SNP CAPN316 in the CAPN gene were: C – 0.14 and G – 0.86; CC – 3.4%, CG – 20.7% and GG – 75.9%. The observed and expected frequencies of CAPN SNP 316 in the cattle population examined were GG 22.0 and 21.6, CG 6.0 and 6.9, and CC 1.0 and 0.6

Diagnosis of human prion disease using real-time quaking-induced conversion testing of olfactory mucosa and cerebrospinal fluid samples

IMPORTANCE Early and accurate in vivo diagnosis of Creutzfeldt-Jakob disease (CJD) is necessary for quickly distinguishing treatable from untreatable rapidly progressive dementias and for future therapeutic trials. This early diagnosis is becoming possible using the real-time quaking-induced conversion (RT-QuIC) seeding assay, which detects minute amounts of the disease-specific pathologic prion protein in cerebrospinal fluid (CSF) or olfactory mucosa (OM) samples. OBJECTIVE To develop an algorithm for accurate and early diagnosis of CJD by using the RT-QuIC assay on CSF samples, OM samples, or both. DESIGN, SETTING, AND PARTICIPANTS In this case-control study, samples of CSF andOMwere collected from 86 patients with a clinical diagnosis of probable (n = 51), possible (n = 24), or suspected (n = 11) CJD and 104 negative control samples (54 CSF and 50 OM). The CSF and OM samples were analyzed using conventional RT-QuIC. The CSF samples underwent further testing using improved RT-QuIC conditions. In addition, the diagnostic performance of a novel, easy-to-use, gentle flocked swab for sampling of OMwas evaluated. Data were collected from January 1 to June 30, 2015. MAIN OUTCOME AND MEASURES Correlations between RT-QuIC results and the final diagnosis of recruited patients. RESULTS Among the 86 patients (37 men [43%] and 49 women [57%]; mean [SD] age, 65.7 [11.5] years) included for analysis, all 61 patients with sporadic CJD had positive RT-QuIC findings using OMor CSF samples or both for an overall RT-QuIC diagnostic sensitivity of 100% (95%CI, 93%-100%). All patients with a final diagnosis of non-prion disease (71 CSF and 67 OM samples) had negative RT-QuIC findings for 100% specificity (95%CI, 94%-100%). Of 8 symptomatic patients with various mutations causing CJD or Gerstmann-Sträussler-Scheinker syndrome, 6 had positive and 2 had negative RT-QuIC findings for a sensitivity of 75%(95%CI, 36%-96%). CONCLUSIONS AND RELEVANCE A proposed diagnostic algorithm for sporadic CJD combines CSF and OM RT-QuIC testing to provide virtually 100% diagnostic sensitivity and specificity in the clinical phase of the disease

Diagnosis of Human Prion Disease Using Real-Time Quaking-Induced Conversion Testing of Olfactory Mucosa and Cerebrospinal Fluid Samples

Importance: Early and accurate in vivo diagnosis of Creutzfeldt-Jakob disease (CJD) is necessary for quickly distinguishing treatable from untreatable rapidly progressive dementias and for future therapeutic trials. This early diagnosis is becoming possible using the real-time quaking-induced conversion (RT-QuIC) seeding assay, which detects minute amounts of the disease-specific pathologic prion protein in cerebrospinal fluid (CSF) or olfactory mucosa (OM) samples. Objective: To develop an algorithm for accurate and early diagnosis of CJD by using the RT-QuIC assay on CSF samples, OM samples, or both. Design, Setting, and Participants: In this case-control study, samples of CSF and OM were collected from 86 patients with a clinical diagnosis of probable (n\u2009=\u200951), possible (n\u2009=\u200924), or suspected (n\u2009=\u200911) CJD and 104 negative control samples (54 CSF and 50 OM). The CSF and OM samples were analyzed using conventional RT-QuIC. The CSF samples underwent further testing using improved RT-QuIC conditions. In addition, the diagnostic performance of a novel, easy-to-use, gentle flocked swab for sampling of OM was evaluated. Data were collected from January 1 to June 30, 2015. Main Outcome and Measures: Correlations between RT-QuIC results and the final diagnosis of recruited patients. Results: Among the 86 patients (37 men [43%] and 49 women [57%]; mean [SD] age, 65.7 [11.5] years) included for analysis, all 61 patients with sporadic CJD had positive RT-QuIC findings using OM or CSF samples or both for an overall RT-QuIC diagnostic sensitivity of 100% (95% CI, 93%-100%). All patients with a final diagnosis of non-prion disease (71 CSF and 67 OM samples) had negative RT-QuIC findings for 100% specificity (95% CI, 94%-100%). Of 8 symptomatic patients with various mutations causing CJD or Gerstmann-Str\ue4ussler-Scheinker syndrome, 6 had positive and 2 had negative RT-QuIC findings for a sensitivity of 75% (95% CI, 36%-96%). Conclusions and Relevance: A proposed diagnostic algorithm for sporadic CJD combines CSF and OM RT-QuIC testing to provide virtually 100% diagnostic sensitivity and specificity in the clinical phase of the disease