Progesterone (P) and its ring A-reduced metabolites regulate sexual behavior in ovariectomized, estrogen-primed female rats when they are administered intracerebrally and systemically. The present study tested the hypothesis that the MAPK pathway participates in P facilitation and sequential inhibition of sexual behavior. The role of MAPK in lordosis facilitation by two ring A-reduced metabolit...

The anti-estrogen, Cl 628, was used to suppress the lordosis response induced by sequential injections of estrogen and progesterone in ovariectomired (OVX) female rats. Appropriate doses of Cl 628 completely abolished sexual receptivity in females administered estradiol benzoate (EB) in sesame oil. This behavioral effect could be attenuated by providing increased quantities of EB or decreased q...

Background. The treatment of thoracic kyphosis and lumbar lordosis with the C-D method remains controversial. Material and methods. The lateral radiographs of 70 patients with King I, II, III, IV idiopathic scoliosis, treated with C-D instrumentation, were retrospectively analyzed. The average age was 14 +/- 1.8 years. Thoracic kyphosis between T2 and T12 and lumbar lordosis between L1 and L5 w...

mesencephalic central gray (CG) of estrogen-primed ovariectomized female rats produced an immediate decline in performMETHQDS ante of the lordosis reflex. Lesions that destroyed the dorsal half of the CG and the adjacent subtectal region were effective. The decrease in individual animals in terms of the lordosis reflex score ranged from 20 to 100% of the prelesion performance. Such lesions abol...

There is a lack of quantitative evidence for spinal postures that are advocated as 'ideal' in clinical ergonomics for sitting. This study quantified surface spinal curves and examined whether subjects could imitate clinically 'ideal' directions of spinal curve at thoraco-lumbar and lumbar regions: (i) flat - at both regions (ii) long lordosis - lordotic at both regions (iii) short lordosis - th...

RATIONALE Lumbar degenerative scoliosis (LDS) is a common spinal disease for senior citizens. However, LDS accompanied with thoracic lordosis and lumbar kyphosis (LK) is rare in clinic. No reports have reported LDS with thoracic lordosis and LK. PATIENT CONCERNS A 54-year-old woman just complained about sever back pain without any radiculopathy and neurodeficit of low limb for 2 years, Visual...

BACKGROUND Prone lying knee flexion (PLKF) is one of the clinical tests used for assessment of the lumbo-pelvic movement pattern. Considerable increase in lumbar lordosis during this test has been considered as impairment of movement patterns in lumbar-pelvic region. However, no study has directly evaluated the change in lordosis during active PLKF test in subjects with low back pain (LBP). The...

This study aimed to analyze the effect of patient positions on the lordosis and scoliosis of patients with degenerative lumbar scoliosis (DLS).Seventy-seven patients with DLS were retrospectively analyzed. We measured lordosis and Cobb's angle on preoperative upright x-rays and magnetic resonance imagings in supine position. The lordosis and scoliosis of surgical segments in intraoperative pron...

BACKGROUND Loss of lumbar lordosis has been reported after lumbar interbody fusion surgery and may portend poor clinical and radiographic outcome. The objective of this research was to measure changes in segmental and global lumbar lordosis in patients treated with presacral axial L4-S1 interbody fusion and posterior instrumentation and to determine if these changes influenced patient outcomes....

The purpose of the first part of the study was to establish the variability of repeated measurements in different measuring conditions. In the second part, we performed in a large number of patients, a measurement of thoracic kyphosis and lumbar lordosis and compared them to age, gender, and level of nourishment. In the first part, measurements were performed on a plastic model of the back of a...