Successful reproductive management in buffaloes depends on effective estrus detection. Urinary pheromones identified from natural estrous cycle have been reported to decipher estrus phase. However, its presence has not been analyzed in the urine after synchronization. Thus, our present investigation was to investigate the influence of synchronized estrus urine in bulls and to examine the presen...

In female rats, food intake is reduced during the period in the estrous cycle when the rat is sexually receptive and ovulation is imminent (Wade and Gray, 1979). By contrast, food intake is increased during lactation in the postpartum period (Linden et al, 1990) and sexual behaviour and ovulation are inhibited (Sodersten et al, 1983). There are several examples demonstrating that the neuroendoc...

Sex determination in animals and fungi is regulated by specific sex-determining genes. The Aspergillus nidulans mating type gene matA and the human SRY (Sex-Determining Region Y) encode proteins containing a single HMG (high-mobility group) domain. Analysis of the amino-acid sequence of MatA and SRY transcription factors revealed significant structural similarity. The human SRY protein is able ...

The asexual forms of the malaria parasite Plasmodium falciparum are adapted for chronic persistence in human red blood cells, continuously evading host immunity using epigenetically regulated antigenic variation of virulence-associated genes. Parasite survival on a population level also requires differentiation into sexual forms, an obligatory step for further human transmission. We reveal that...

INTRODUCTION The concept of sexual dysfunction is dysfunction in desire and emotional - social that it is Impact on the sexual response cycle and can cause stress and interpersonal difficulties. Quality of marital relationship is one of the important factors predicting sexual function disorders, which varies among different cancers. The purpose of this study is to determine the relationship bet...

Calcium-dependent protein kinases (CDPKs) play key regulatory roles in the life cycle of the malaria parasite, but in many cases their precise molecular functions are unknown. Using the rodent malaria parasite Plasmodium berghei, we show that CDPK1, which is known to be essential in the asexual blood stage of the parasite, is expressed in all life stages and is indispensable during the sexual m...

With malaria a resurging public health problem in much of the tropical world, the search for newer methods to combat this disease has been intensified. Current research is multifaceted, directed toward the development of better means of mosquito control, new chemotherapeutic drugs, and an effective vaccine. Malaria is caused by a protozoan parasite with a complex life cycle and several differen...

Method Twenty female Sprague Dawley rat (SD rat) were randomly divided into two groups according to their bedding types. The 1 group was raised in wood shaving bedding as a control and 2 one was in corncob bedding as an endocrine disrupting agent. Each group was checked daily for the first day of vaginal opening, and their vaginal smears were collected to determine estrous cyclicity after vagin...

Differentiation of malaria parasites into sexual forms (gametocytes) in the vertebrate host and their subsequent development into gametes in the mosquito vector are crucial steps in the completion of the parasite's life cycle and transmission of the disease. The molecular mechanisms that regulate the sexual cycle are poorly understood. Although several signal transduction pathways have been imp...

In the phytopathogenic basidiomycete Ustilago maydis, sexual and pathogenic development are tightly connected and controlled by the heterodimeric bE/bW transcription factor complex encoded by the b-mating type locus. The formation of the active bE/bW heterodimer leads to the formation of filaments, induces a G2 cell cycle arrest, and triggers pathogenicity. Here, we identify a set of 345 bE/bW ...