■　REVIEW

Physiological Features of Periodontal Regeneration and Approaches for Periodontal Tissue Engineering Utilizing Periodontal Ligament Cells.
Bruno Braga Benatti, Karina Gonzales Silverio, Marcio Zaffalon Casati, Enilson Antonio Sallum, and Francisco Humberto Nociti Jr.

Effect of Bacillus subtilis spo0A Mutation on Cell Wall Lytic Enzymes and Extracellular Proteases, and Prevention of Cell Lysis.
Takeko Kodama, Keiji Endo, Katsutoshi Ara, Katsuya Ozaki, Hiroshi Kakeshita, Kunio Yamane, and Junichi Sekiguchi

ENZYMOLOGY, PROTEIN ENGINEERING, AND ENZYME TECHNOLOGY

Poly[(R)-3-Hydroxybutyrate] Formation in Escherichia coli from Glucose through an Enoyl-CoA Hydratase-Mediated Pathway.
Shun Sato, Christopher T. Nomura, Hideki Abe, Yoshiharu Doi, and Takeharu Tsuge

BREWING AND FOOD TECHNOLOGY

Water-Absorption Rate Equation of Rice for Brewing Sake.
Tomochika Mizuma, Akiko Tomita, Atsushi Kitaoka, Yoshifumi Kiyokawa, and Yoshinori Wakai

ENVIRONMENTAL BIOTECHNOLOGY

Degradation and Behavior of Natural Steroid Hormones in Cow Manure Waste during Biological Treatments and Ozone Oxidation.
Rahyani Ermawati, Shigeru Morimura, Yueqin Tang, Kai Liu, and Kenji Kida

Improvement in Ammonium Removal Efficiency in Wastewater Treatment by Mixed Culture of Alcaligenes faecalis No. 4 and L1.
Hung-Soo Joo, Mitsuyo Hirai, and Makoto Shoda

BIOCHEMICAL ENGINEERING

Adsorption Characteristics of Oligopeptides Composed of Acidic and Basic Amino Acids on Titanium Surface.
Koreyoshi Imamura, Yuuki Kawasaki, Takeshi Nagayasu, Takaharu Sakiyama, and Kazuhiro Nakanishi

Cholesterol Delivery to NS0 Cells: Challenges and Solutions in Disposable Linear Low-Density Polyethylene-Based Bioreactors.
Jessica Okonkowski, Uma Balasubramanian, Craig Seamans, Serena Fries, Jinyou Zhang, Peter Salmon, David Robinson, and Michel Chartrain

Enhancement of Ethanol Production by Promoting Surface Contact between Starch Granules and Arming Yeast in Direct Ethanol Fermentation.
Teik Seong Khaw, Yoshio Katakura, Kazuaki Ninomiya, Churairat Moukamnerd, Akihiko Kondo, Mitsuyoshi Ueda, and Suteaki Shioya

CELL AND TISSUE ENGINEERING

Synthesis of an Agarose-Gelatin Conjugate for Use as a Tissue Engineering Scaffold.
Shinji Sakai, Ichiro Hashimoto, and Koei Kawakami

Promotion of Recombinant Macrophage Colony Stimulating Factor Production by Dimethyl Sulfoxide Addition in Chinese Hamster Ovary Cells.
Chi-Hsien Liu and Li-Hsin Chen

Comparative Transcriptional Analysis of Mouse Hybridoma and Recombinant Chinese Hamster Ovary Cells Undergoing Butyrate Treatment.
Marcela De Leon Gatti, Katie F. Wlaschin, Peter Morin Nissom, Miranda Yap, and Wei-Shou Hu

Method for Reverse Transfection Using Gold Colloid as a Nano-Scaffold.
Eiichiro Uchimura, Shigeru Yamada, Lorenz Uebersax, Satoshi Fujita, Masato Miyake, and Jun Miyake

MEDICAL BIOTECHNOLOGY

Electrochemical Biosensor Array for Liver Diagnosis Using Silanization Technique on Nanoporous Silicon Electrode.
Min-Jung Song, Dong-Hwa Yun, Nam-Ki Min, and Suk-In Hong

High Inoculation Cell Density Could Accelerate the Differentiation of Human Bone Marrow Mesenchymal Stem Cells to Chondrocyte Cells.
Mutsumi Takagi, Yousuke Umetsu, Masashi Fujiwara, and Shigeyuki Wakitani

METHODS

Adequate Design of Customized cDNA Macroarray for Convenient Multiple Gene Expression Analysis.
Shunpei Sugiyama, Kimiko Yamamoto, Norihiro Nishimura, Miki Nakagawa, Yukio Maruta, and Joji Ando

Calculation of Metabolic Flow of Xylose in Lactococcus lactis.
Hitomi Ohara, Michiko Owaki, and Kenji Sonomoto