Immunolocalization of Phospholipase C Zeta 1 in Water Buffalo Sperm and Its Role in Oocyte Activation
Bibliographic record
Abstract
The present study aimed to investigate the expression and localization of Phospholipase C zeta 1 (PLCZ1) in water buffalo sperm and determine its localization pattern following the induction of early fertilization events. Initially, water buffalo semen under uncapacitated conditions underwent western blot analysis to detect and localize the PLCZ1 protein via immunofluorescence, utilizing antibodies specific to buffalo PLCZ1. In a parallel experiment, a subset of sperm underwent in-vitro capacitation in a medium containing bicarbonate, followed by treatment with a calcium ionophore to induce the acrosome reaction, providing evidence of capacitation. The findings revealed the detection of PLCZ1 as an immunoreactive band at approximately 77 kDa in buffalo sperm. Furthermore, immunolocalization of PLCZ1 in uncapacitated buffalo sperm showed predominant expression in the acrosome and post-acrosomal regions, with minimal reactivity in the tail region. Conversely, capacitated buffalo sperm exhibited a shift in PLCZ1 localization, with a prominent presence at the acrosomal cap region of the sperm head and reduced reactivity in the tail region. This translocation of PLCZ1 in capacitated sperm suggests early physiological activities, particularly in inducing calcium oscillation to initiate oocyte activation during fertilization. Moreover, the successful detection of PLCZ1 in buffalo sperm in the present study highlights its potential as a biological marker for screening bull fertility and genetic improvement in water buffaloes.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.001 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".