1. Extracellular and intracellular action of clodronate in osteolytic bone diseases? A hypothesis

   • Nico van Rooijen

   Review Pages: 407 - 410

2. The effects of walking at the anaerobic threshold level on vertebral bone loss in postmenopausal women

   • Masako Hatori
   • Akira Hasegawa
   • Kazuhiko Murata

   Clinical Investigations Pages: 411 - 414

3. Neutrophil functions in patients with fractures of the upper end of the femur

   • N. G. Papadopoulos
   • G. P. Lyritis
   • J. Th. Papavassiliou

   Clinical Investigations Pages: 415 - 418

4. Serum bone Gla protein as a marker of bone turnover in acromegaly

   • M. Marazuela
   • B. Astigarraga
   • T. Lucas

   Clinical Investigations Pages: 419 - 421

5. Bone mineral density in hyperandrogenic amenorrhoea

   • Janez Preželj
   • Andreja Kocijančič

   Clinical Investigations Pages: 422 - 424

6. Life-style and different fracture prevalence: A cross-sectional comparative population-based study

   • Brynjólfur Jónsson
   • Per Gärdsell
   • Bo Gullberg

   Clinical Investigations Pages: 425 - 433

7. Misoprostol, a prostaglandin E₁ analogue, inhibits basic calcium phosphate crystal-induced mitogenesis and collagenase accumulation in human fibroblasts

   • Geraldine M. McCarthy
   • Peter G. Mitchell
   • Herman S. Cheung

   Clinical Investigations Pages: 434 - 437

8. Evidence that interleukin-1 mediates its effects on bone resorption via the 80 kilodalton interleukin-1 receptor

   • I. Ross Garrett
   • Theresa A. Guise
   • Gregory R. Mundy

   Laboratory Investigations Pages: 438 - 441

9. Effect of prostaglandin D₂ on the femoral bone mineral density in ovariectomized rats

   • Toshiki Takagi
   • Tatsuro Yamamoto
   • Hajime Tamaki

   Laboratory Investigations Pages: 442 - 446

10. Histomorphometry of iliac crest trabecular bone in adult male baboons in captivity

    • Christine M. Schnitzler
    • Ugo Ripamonti
    • Julia M. Mesquita

    Laboratory Investigations Pages: 447 - 454

11. PurifiedPasteurella multocida protein toxin reduces acid phosphatase-positive osteoclasts in the ventral nasal concha of gnotobiotic pigs

    • Mark R. Ackermann
    • D. A. Adams
    • R. B. Rimler

    Laboratory Investigations Pages: 455 - 459

12. The effect of high or low dietary calcium on bone and calcium homeostasis in young male rats

    • Per Persson
    • Rebecca Gagnemo-Persson
    • Rolf Håkanson

    Laboratory Investigations Pages: 460 - 464

13. Type II collagen expression in the mandibular condyle during growth adaptation: An experimental study in the rabbit

    • Liisa Salo
    • Tuomo Kantomaa

    Laboratory Investigations Pages: 465 - 469

14. Correlation between densitometric and hystomorphometric values in isolated vertebrae of Sprague-Dawley rats

    • I. Campodarve
    • A. Diez
    • J. Aubia

    Rapid Communication Pages: 470 - 471

15. Announcements

    Announcement Pages: 472 - 472