1. Is there a causal role for IL-1 in postmenopausal bone loss?

   • Roberto Pacifici

   Editorial Pages: 295 - 299

2. Cigarette smoking, steroid hormones, and bone mineral density in young women

   • Mark Daniel
   • Alan D. Martin
   • Donald T. Drinkwater

   Clinical Investigation Pages: 300 - 305

3. Suppression of the osteogenic response in the aging skeleton

   • Clinton T. Rubin
   • Steven D. Bain
   • Kenneth J. McLeod

   Laboratory Investigations Pages: 306 - 313

4. Ipriflavone inhibits osteoclast differentiation in parathyroid transplanted parietal bone of rats

   • Ermanno Bonucci
   • Paola Ballanti
   • Lidia Bufalino

   Laboratory Investigations Pages: 314 - 319

5. Metabolic studies on connective tissue collagens in bone and tendon of adjuvant arthritic rat

   • G. Kesava Reddy
   • S. C. Dhar

   Laboratory Investigations Pages: 320 - 326

6. The extracellular matrix of cartilage in the growth plate before and during calcification: Changes in composition and degradation of type II collagen

   • Mauro Alini
   • Yasumoto Matsui
   • A. Robin Poole

   Laboratory Investigations Pages: 327 - 335

7. Bone blood flow and In vitro proliferation of bone marrow and trabecular bone osteoblast-like cells in ovariectomized rats

   • Dominique Egrise
   • Dominique Martin
   • Andre Schoutens

   Laboratory Investigations Pages: 336 - 341

8. Matrix vesicles are enriched in metalloproteinases that degrade proteoglycans

   • David D. Dean
   • Zvi Schwartz
   • Barbara D. Boyan

   Laboratory Investigations Pages: 342 - 349

9. Changes in the linear attenuation coefficient of canine appendicular bone following intravenous infusion of strontium lactate, measured using gamma-ray computed tomography

   • Thomas R. Overton
   • Richard E. Snyder
   • David C. Secord

   Laboratory Investigations Pages: 350 - 356

10. Effects of F^- on apatite-octacalcium phosphate intergrowth and crystal morphology in a model system of tooth enamel formation

    • Mayumi Iijima
    • Hisako Tohda
    • Yutaka Moriwaki

    Laboratory Investigations Pages: 357 - 361

11. Establishment of an osteogenic cell line derived from adult mouse bone marrow stroma by use of a recombinant retrovirus

    • Eric Mathieu
    • Greet Schoeters
    • Jozef Merregaert

    Molecular and Cellular Biology Pages: 362 - 371

12. Regulation of C-myc protooncogene expression in osteoblastic cells by arachidonic acid metabolites: Relationship to proliferation

    • Wei Ren
    • Alan J. Kinniburgh
    • Rosemary Dziak

    Molecular and Cellular Biology Pages: 372 - 377

13. Long-lasting dermatological lesions after tiludronate therapy

    • C. Roux
    • V. Listrat
    • B. Amor

    Rapid Communication Pages: 378 - 380

14. An effective regimen of intranasal salmon calcitonin in early postmenopausal bone loss

    • Carlo Gennari
    • Donato Agnusdei
    • Roberto Civitelli

    Comment Pages: 381 - 383

15. Measuring muscle strength of the upper extremity

    • Arlyn Pittler

    Letter to the Editor Pages: 384 - 384

16. Abstracts from the First International Symposium on Fibrodsyplasia Progressive, September 25–26, 1991, Philadelphia, Pennsylvania

    Orthopedic Surgical Forum Pages: 385 - 388

17. Erratum

    Erratum Pages: 389 - 389