Relationship between polymorphisms in the FAS/FASL death receptor system and progression of low-grade precursor lesions infected with high-risk human papilloma virus.

Squamous intraepithelial lesions (SIL) and cervical cancer are primary due to suboptimal immune response against human papillomavirus (HPV). The FASL/FAS system is a trigger of extrinsic pathway apoptosis. The distribution of polymorphisms rs1800682 (-670 A > G) FAS and rs763110 (-844C > T) FASL was studied in cervical smears from 372 females (182 with stable or regressed low-grade SIL (LSIL) (groupI) and a group of 190 high-grade SIL (HSIL) (groupII).

Cutaneous endometriosis: Presentation of 33 cases and literature review.

Objective: Cutaneous endometriosis is a rare condition that usually affects the abdominal wall in women with a history of open abdominal surgery. It has a characteristic clinical picture of a mass and pain associated with menstruation. The diagnosis is difficult on being an uncommon and little known condition.

New anatomo-radiological findings of the lateral pterygoid muscle.

Purpose: The discrepancies in the literature regarding the anatomy of the temporomandibular joint (TMJ), particularly at the level of the lateral pterygoid muscle, led us to compare plastinated section techniques and magnetic resonance imaging (MRI) to enable the better interpretation of both, and to describe the features of the lateral pterygoid muscle and the exact location of its insertions.

Methods: A total of 24 blocks of human TMJ were used. Seven were studied by MRI, obtaining images of the oblique-sagittal, oblique-coronal, and axial planes.

Cell proliferation in the seminiferous and epididymal epithelia of Sus domesticus.

It is important to understand the proliferative activity of the different structures of the male reproductive apparatus in livestock species, such as Sus domesticus, to ensure reproductive efficiency. The main aims of this study were (a) to evaluate the proliferative activity of the spermatogonia in the different stages of the seminiferous cycle and (b) to study the cell proliferation in the epididymal epithelium in each region, identifying the different cells involved. For this, the testes and epididymis of three healthy, sexually mature Sus domesticus boars were used.

Influence of histological degree of seminiferous tubular degeneration and stage of seminiferous cycle on the proliferation of spermatogonia in aged Syrian hamster (Mesocricetus auratus).

The ageing testis is associated with germ loss in the seminiferous epithelium and a decrease in spermatogonia proliferation. In this work, we study whether the stages of the seminiferous epithelium cycle and/or the degree of histological tubular degeneration resulting from ageing is related with this decrease in spermatogonia proliferation. Eleven hamsters were used, five aged 6 months and six aged 24 months.