A Confucian View of Personhood and Bioethics

This paper focuses on Confucian formulations of personhood and the implications they may have for bioethics and medical practice. We discuss how an appreciation of the Confucian concept of personhood can provide insights into the practice of informed consent and, in particular, the role of family members and physicians in medical decision-making in societies influenced by Confucian culture. We suggest that Western notions of informed consent appear ethically misguided when viewed from a Confucian perspective.     

Anthropological and Sociological Critiques of Bioethics

Anthropologists and sociologists offer numerous critiques of bioethics. Social scientists criticize bioethicists for their arm-chair philosophizing and socially ungrounded pontificating, offering philosophical abstractions in response to particular instances of suffering, making all-encompassing universalistic claims that fail to acknowledge cultural differences, fostering individualism and neglecting the importance of families and communities, and insinuating themselves within the “belly” of biomedicine. Although numerous aspects of bioethics warrant critique and reform, all too frequently social scientists offer ungrounded, exaggerated criticisms of bioethics. Anthropological and sociological critiques of bioethics are hampered by the tendency to equate bioethics with clinical ethics and moral theory in bioethics with principlist bioethics. Also, social scientists neglect the role of bioethicists in addressing organizational ethics and other “macro-social” concerns. If anthropologists and sociologists want to provide informed critiques of bioethics they need to draw upon research methods from their own fields and develop richer, more informed analyses of what bioethicists say and do in particular social settings.     

Infertility,abortion, and biotechnology

Patterns of reproductive failure described in humans and other mammals suggest that reproductive failure may in many instances be the result of adaptations evolved to suppress reproduction under temporarily harsh conditions. By suppressing reproduction under such conditions, females are able to conserve their time and energy for reproductive opportunities in which reproduction is most likely to succeed. Such adaptations have been particularly important for female mammals, given (a) the amount of time and energy that reproduction requires, and (b) the degree to which reproductive conditions can vary. The existence of conscious and unconscious mechanisms to suppress reproduction under poor conditions has several implications for obstetric/gynecologic practices. Two implications are discussed with reference to biotechnological advancements in our ability to facilitate conceptions and manage problem pregnancies: (a) potential dangers of sophisticated technologies overriding natural fertility controls; and (b) the need for greater appreciation of the association between psychosocial stress and reproductive failure in the treatment of reproductive problems. Implications for elective abortion practices are discussed as well. The ideas for this paper were developed while the author was a recipient of a Career Development Award from the Harry Frank Guggenheim Foundation. Dr. Wasser received a B.S. degree of Zoology from Michigan State University in 1975, a Masters of Science in Zoology from the University of Wisconsin-Milwaukee in 1976, and a Ph.D. in Psychology from the University of Washington in 1981. He is co-director of the Animal Behavior Research Unit, a long-term study on the behavioral ecology and reproduction of free-ranging yellow baboons at Mikumi National Park, Tanzania. Dr. Wasser’s primary research focus is on the evolution of reproductive strategies in female mammals. His work includes research on human infertility and abortion. He is also working on the breeding of endangered species in captivity under a Research Development Award from the National Zoological Park of the Smithsonian Institution.     

Pharmaceutical biotechnology: Chemical biotechnology: Web alert

A selection of World Wide Web sites relevant to papers published in this issue of Current Opinion in Biotechnology.     

Progress and potential in the biotechnology of lactic acid bacteria

Abstract: Current activities and future prospects for the biotechnology of lactic acid bacteria are reviewed. Genetic engineering technology, including advances and limitations of plasmid vectors and chromosomal integration strategies are discussed together with the status of gene expression and the importance of in vivo gene transfer systems and transposition. Areas of biotechnological application considered include proteolysis and flavour generation, bacteriophage resistance, antimicrobials, metabolic engineering and the possible uses of lactic acid bacteria in relation to health.     

Pharmaceutical biotechnology, Chemical biotechnology: Web alert

A selection of World Wide Web sites relevant to papers published in this issue of Current Opinion in Biotechnology.     

Research and application of biotechnology in textile industries in China

Textile industry is a conventional and pillar industry in China, which possesses a considerable proportion of the national economy. In recent years, special attention has been paid to the application of biotechnology in textile industries in China. As an interdiscipline between natural science and engineering science, textile biotechnology has much effect on China's textile industry. This paper summarizes current developments and highlights those areas where biotechnology might play an increasingly important role in China's textile industry as follows:

(1) Development of new types of textile fibers and polymers, such as Bt cotton naturally colored cotton, colored silk and silk gene-sequence, spider silk non-wovens, chitin fiber and chitosan derivatives, etc.

(2) Application of enzyme technology in textile wet processing, such as alkaline pectinase, PVA-degrading enzyme, cutinase and catalase used for cotton preparation, neutral cellulase for denim washing, transglutaminase for wool modification, protease for silk degumming as well as pectinase and hemicellulases for retting of bast fibers.

(3) Treatment of textile effluents with biotechnology.

Challenges of Macro-ethics: Bioethics and the Transformation of Knowledge Production

One interesting aspect of the Hwang-case has been the way in which this affair was assessed by academic journals such as Nature. Initially, Hwang’s success was regarded as evidence for the detrimental effects of research ethics, slowing down the pace of research in Western countries. Eventually, however, Hwang’s debacle was seen as evidence for the importance of ethics in the life sciences. Ironically, it was concluded that the West maintains its prominence in science (as a global endeavour) precisely because it has its ethics in place. Bioethics was now seen as an indispensable part of quality control. In this article, I will claim that the Hwang case rather reveals that there is no reason for complacency and that there are substantial challenges awaiting us. They have to do with major transformations in the way knowledge is produced and research in the life sciences is conducted (such as the increase in pace and scale, globalisation and the growing importance of ICT and bioinformation). These transformations call for a different kind of bioethics. The focus must shift from duties of autonomous researchers concerning visible research subjects (“micro-ethics”) to responsibilities of institutionalised research networks in managing and processing large amounts of bioinformation (“macro-ethics”). Concepts such as transparency, reliability and benefit-sharing will become more important than concepts such as informed consent. Basically, it is a resurgence of the tension between the Kantian and the Hegelian view of ethics. The contours of macro-ethics will be elaborated notably as it is emerging in bioethical debates over biobanking and genetic databanks.

Bifunctional xylanases and their potential use in biotechnology

Plant cell walls are comprised of cellulose, hemicellulose and other polymers that are intertwined. This complex structure acts as a barrier to degradation by single enzyme. Thus, a cocktail consisting of bi and multifunctional xylanases and xylan debranching enzymes is most desired combination for the efficient utilization of these complex materials. Xylanases have prospective applications in the food, animal feed, and paper and pulp industries. Furthermore, in order to enhance feed nutrient digestibility and to improve wheat flour quality xylanase along with other glycohydrolases are often used. For these applications, a bifunctional enzyme is undoubtedly much more valuable as compared to monofunctional enzyme. The natural diversity of enzymes provides some candidates with evolved bifunctional activity. Nevertheless most resulted from the in vitro fusion of individual enzymes. Here we present bifunctional xylanases, their evolution, occurrence, molecular biology and potential uses in biotechnology.     

Considerations for conducting research in agricultural biotechnology

Science has shown its increased vulnerability because of two recent high-profile articles published in major journals on corn produced through biotechnology: a laboratory report suggesting profound consequences to monarch butterfly populations due to Bt corn pollen and a report suggesting transgenic introgression into Mexican maize. While both studies have been widely regarded as having flawed methodology, publishing these studies has created great consternation in the scientific community, regulatory agencies and the general public. There are roles and responsibilities of scientists, scientific journals, the public media, public agencies, and those who oppose or advocate a specific technology, and serious consequences when those roles and responsibilities go awry. Modern communication may exacerbate the flow of misinformation and easily lead to a decline in public confidence about biotechnology and science. However, common sense tells us that scientific inquiry and the publication and reporting of results should be performed with high standards of ethical behavior, regardless of one's personal perspective on agricultural biotechnology.     

Marine biotechnology advances towards applications in new functional foods

The marine ecosystem is still an untapped reservoir of biologically active compounds, which have considerable potential to supply food ingredients towards development of new functional foods. With the goal of increasing the availability and chemical diversity of functional marine ingredients, much research has been developed using biotechnological tools to discover and produce new compounds.     

Origin Myths in Bioethics: Constructing Sources,Motives and Reason in Bioethic(s)

Bioethics, the term now usually standing in for Biomedical Ethics, is a field of medical anthropological engagement. While many anthropologists and other social scientists work with bioethicists and physicians, this paper instead takes Bioethics as a topic of cultural research from the perspective of Cultural Bioethics and Interpretive Medical Anthropology. Application of useful findings of vintage anthropological research in cultural anthropology and the anthropology of religion and an interpretive lens reveal a field without a single origin or unified methodology. The paper suggests the appropriateness of a literal meaning of current conceptual commonality of the term Bioethics: that the term does in fact refer to a plurality of distinct enterprises with distinct origins and, hence, justifications.     

Polymerase chain Reaction in molecular biotechnology; appropriate technology for developing countries

The product of the Polymerase Chain Reaction (PCR) may be generically suitable for four types of investigations: Discovery PCR, Analytical PCR, Modification by PCR, and Synthetic PCR. Despite the potential problem of contamination with extraneous DNA, PCR is relatively simple and inexpensive, and thereby offers opportunities for laboratories from smaller or developing countries to invest limited resources in competitive global research and development, or in applications of economic and social value in health, agriculture and other sectors.The authors are with the Laboratory of Molecular Genetics, Department of Pathology, University of Malta, MSIDA MSD 06, Malta, and Life Sciences and Biotechnology Network, Malta Council for Science and Technology, Valletta, Malta.     

Bioethics, biotechnology and culture: a voice from the margins

In this paper I argue for the universality of morality as against and in spite of the plurality and inevitable relativity of human cultures. Universalisability is the litmus test of moral authenticity whereas culture tends to impose an egocentric predicament. I argue equally for the equality of cultures qua cultures and of the importance of different cultural perspectives, given the limitations of each and every particular culture, in a balanced and wholesome appreciation of moral issues, particularly issues of cross-cultural relevance. I then try to anchor my reflections on a few topical ethical issues of cross-cultural relevance which have been the subject of controversy in recent times.     

Albumin and mammalian cell culture: implications for biotechnology applications

Albumin has a long historical involvement in design of media for the successful culture of mammalian cells, in both the research and commercial fields. The potential application of albumins, bovine or human serum albumin, for cell culture is a by-product of the physico-chemical, biochemical and cell-specific properties of the molecule. In this review an analysis of these features of albumin leads to a consideration of the extracellular and intracellular actions of the molecule, and importantly the role of its interactions with numerous ligands or bioactive factors that influence the growth of cells in culture: these include hormones, growth factors, lipids, amino acids, metal ions, reactive oxygen and nitrogen species to name a few. The interaction of albumin with the cell in relation to these co-factors has a potential impact on metabolic and biosynthetic activity, cell proliferation and survival. Application of this knowledge to improve the performance in manufacturing biotechnology and in the emerging uses of cell culture for tissue engineering and stem cell derived therapies is an important prospect.     

Rumen microbiology, biotechnology and ruminant nutrition: The application of research findings to a complex microbial ecosystem

Research on rumen microorganisms has contributed greatly to our understanding of anaerobic microbial ecosystems, and has also influenced feeding practices and nutritional modelling with ruminants. However, it can be argued that rumen microbiology has not yet fulfilled its true potential. Growth-promoting ionophores, antibiotics and microbial feed additives were introduced before their microbiological effects had been determined. A more pro-active role for the microbiologist was predicted with the advent of recombinant DNA technology. Whether ventures in molecular biology can be applied successfully to benefit nutrition and health is likely to depend on whether means can be found for maintaining new strains in vivo.     

ATP in current biotechnology: Regulation,applications and perspectives

Adenosine tri-phosphate (ATP), the most important energy source for metabolic reactions and pathways, plays a vital role in the growth of industrial strain and the production of target metabolites. In this review, current advances in manipulating ATP in industrial strains, including altering NADH availability, and regulating NADH oxidation pathway, oxygen supply, proton gradient, the electron transfer chain activity and the F₀F₁-ATPase activity, are summarized and discussed. By applying these strategies, optimal product concentrations, yields and productivity in industrial biotechnology have been achieved. Furthermore, the mechanisms by which ATP extends the substrate utilization spectra and enhances the ability to challenge harsh environmental stress have been elucidated. Finally, three critical issues related to ATP manipulation have been addressed.     

Liquid and gaseous fuels from biotechnology: challenge and opportunities

Abstract: This paper presents challenging opportunities for production of liquid and gaseous fuels by biotechnology. From the liquid fuels, ethyl alcohol production has been widely researched and implemented. The major obstacle for large scale production of ethanol for fuel is the cost, whereby the substrate represents one of the major cost components. Various scenarios will be presented for a critical assessment of cost distribution for production of ethanol from various substrates by conventional and high rate processes. The paper also focuses on recent advances in the research and application of biotechnological processes and methods for the production of liquid transportation fuels other than ethanol (other oxygenates; diesel fuel extenders and substitutes), as well as gaseous fuels (biogas, methane, reformed syngas). Potential uses of these biofuels are described, along with environmental concerns which accompany them. Emphasis is also put on microalgal lipids as diesel substitute and biogas/methane as a renewable alternative to natural gas. The capturing and use of landfill gases is also mentioned, as well as microbial coal liquefaction. Described is also the construction and performance of microbial fuel cells for the direct high-efficiency conversion of chemical fuel energy to electricity. Bacterial carbon dioxide recovery is briefly dealt with as an environmental issue associated with the use of fossil energy.