Current Advances in Applied Microbiology &Biotechnology<应用微生物学和生物技术近期进展>

<应用微生物学和生物技术近期进展>创刊于1984年,现由世界著名的英国埃尔塞威尔(Elsevier)公司出版,其原名为Current Advances in Micro biology <微生物学近期进展>(1984～1990).它是一种题录型的检索期刊,是<生物科学近期文献通报>(CABS)12个分册之一(编者注:本刊1999年第3期已对CABS的特点作了介绍).     

Prevalence,Awareness, Treatment,and Control of Hypertension in United States Counties, 2001–2009

Hypertension is an important and modifiable risk factor for cardiovascular disease and mortality. Over the last decade, national-levels of controlled hypertension have increased, but little information on hypertension prevalence and trends in hypertension treatment and control exists at the county-level. We estimate trends in prevalence, awareness, treatment, and control of hypertension in US counties using data from the National Health and Nutrition Examination Survey (NHANES) in five two-year waves from 1999–2008 including 26,349 adults aged 30 years and older and from the Behavioral Risk Factor Surveillance System (BRFSS) from 1997–2009 including 1,283,722 adults aged 30 years and older. Hypertension was defined as systolic blood pressure (BP) of at least 140 mm Hg, self-reported use of antihypertensive treatment, or both. Hypertension control was defined as systolic BP less than 140 mm Hg. The median prevalence of total hypertension in 2009 was estimated at 37.6% (range: 26.5 to 54.4%) in men and 40.1% (range: 28.5 to 57.9%) in women. Within-state differences in the county prevalence of uncontrolled hypertension were as high as 7.8 percentage points in 2009. Awareness, treatment, and control was highest in the southeastern US, and increased between 2001 and 2009 on average. The median county-level control in men was 57.7% (range: 43.4 to 65.9%) and in women was 57.1% (range: 43.0 to 65.46%) in 2009, with highest rates in white men and black women. While control of hypertension is on the rise, prevalence of total hypertension continues to increase in the US. Concurrent increases in treatment and control of hypertension are promising, but efforts to decrease the prevalence of hypertension are needed.     

Current Advances in Ecological & Environmental Sciences《生态学与环境科学近期进展》

<生态学与环境科学近期进展>创刊于1975年,现由世界著名的英国埃尔塞威尔(Elsevier)公司出版.其原名为Current Advances in Ecological Science<生态学近期进展>(1975～1988).它是一种题录型的检索期刊,是<生物科学近期文献题录>(CABS)12个分册之一(CABS的介绍,见本刊1999年第3期).     

Art, Science, or Politics? The Crisis in Hunter-Gatherer Studies

In the complex history of hunter-gatherer studies, several overlapping and at times antagonistic discourses can be discerned. However, one critique has emerged that would render all hunter-gatherer discourses irrelevant and do away with the concept altogether. The paper explores the poststructuralist roots of this "revisionism" and then argues why the concept of hunter-gatherer continues to be politically relevant and empirically valid. However, if they are to fulfill their promise of illuminating an increasingly fragmented and alienating modernity, hunter-gatherer studies will have to become more attuned to issues of politics, history, context, and reflexivity.     

Gap Junctional Intercellular Communication as a Biological “Rosetta Stone” in Understanding, in a Systems Biological Manner, Stem Cell Behavior, Mechanisms of Epigenetic Toxicology, Chemoprevention and Chemotherapy

In spite of the early speculation by Loewenstein that one of the critical distinguishing phenotypes of cancers from normal cells was the dysfunction of gap junctional intercellular communication (GJIC), this hypothesis has not captured the attention of most birth defects and cancer researchers. Moreover, even with later demonstrations that factors that influence normal development and carcinogenesis by modulating GJIC, such as chemical teratogens and tumor-promoting chemicals, inflammatory factors, hormones and growth factors, antisense connexin genes, knockout mouse models, human inherited mutated connexin genes, si-connexin RNA, chemopreventive and chemotherapeutic chemicals, it is rare that one sees any reference to these studies by the mainstream investigators in these fields. Based on the assumption that the evolutionarily conserved connexin genes found in metazoans are needed for normal development and the maintenance of health and T. Dobzhansky's statement "Nothing in biology makes sense except in the light of evolution," a short review of the roles of endogenous and exogenous modulators of GJIC will be made in the context of the multistage, multimechanism process of carcinogenesis, the stem cell theory of carcinogenesis, the discovery and characterization of normal adult stem "cancer stem" cells and the observation that two distinct classes of GJIC-deficient cancer cells are known. The implications of these observations to a "systems biological" view of the role of gap junctions and the nutritional prevention and treatment of several chronic diseases and cancer will be discussed.     

A Regional analysis of Maize Biological Diversity in Southeastern Guanajuato, MéXico

Four environments with contrasting potential for agricultural productivity and infrastructure development were identified in Guanajuato State, México, to test hypotheses about the relaciónship of maize biological diversity to the region’s potential for agricultural productivity and infrastructure development. Samples of all types of maize grown by a random sample of farmers were collected from each environment. Landraces were the dominant maize class in all four environments; the use of improved varieties was negligible. Several diversity indices were calculated, and no statistically significant differences were apparent between the environments with the most contrasting agroecological and infrastructural conditions. Statistical differences in diversity are apparent when the development of infrastructure interacts with agroecological factors in an environment. Qualitative data suggest that the richness of maize populations may be associated with maize yield potential in a geographical area, whereas the evenness of maize populations may be associated with the presence of infrastructure. These findings suggest further hypotheses about regional patterns of maize diversity.     

Science, diplomacy, charity, politics... What is in common?--Academician Serhiĭ Komisarenko

The paper is dedicated to the history of creation and development of a new trend of scientific investigations in Palladin Institute of Biochemistry of NAS of Ukraine and Ukraine as a whole, - molecular immunology - in the context of scientific, scientific-organizational, pedagogical, social and political activity of Serhiy Vasyliovych Komisarenko. Professor S. V. Komisarenko, Director of Palladin Institute of Biochemistry, Full Member of the National Academy of Sciences of Ukraine and Academy of Medical Sciences of Ukraine, President of the Ukrainian Biochemical Society (since 1999), editor-in-chief Ukrainian Biochemical Journal (1989-1992 and since 1998), Academician-Secretary and Member of the Presidium of the National Academy of Sciences of Ukraine (since April 2004) is a physician by education, molecular biologist by the calling, biochemist-immunologist by profession. He was one of the first researchers in our country who started systematic investigations in the field of molecular immunology, created a powerful world-famous scientific school, and made great contribution to solution of the acute problems of public health. He has proposed a new anti-tumor preparation MEBIFON which is produced at pharmaceutical firm Farmak in Kyiv. He was one of the first in the former USSR who introduced a hybridom technique for obtaining monoclonal antibodies. S. Komisarenko was awarded the State Prize of the Ukr. SSR (1979) for immunochemical investigation of milk for babies. He proved that small doses of total radiation cause essential inhibition of natural immunity, which he called "the Chernobyl AIDS". The collective of scientific workers of the Department of Molecular Immunology headed by S. Komisarenko was awarded the O. V. Palladin Prize of NAS of Ukraine (2003) for a cycle of works Immunochemical Analysis of Fibrin and Fibrinogen Polymerization Mechanisms. Serhiy Komisarenko combines successfully scientific, scientific-organizing activity with pedagogical work; he leads the division BIOTECHNOLOGY of the Department of Biochemistry at Taras Shevchenko Kyiv National University. Under his supervision 6 doctors and 18 candidates of science have been prepared. He has above 400 scientific articles in the field of Biochemistry and/or Immunology, and more than 100 publications on Ukrainian culture and politics. Serhiy Komisarenko has performed great social and political work at the post of the Deputy Chairman of the Council of Ministers of Ukraine, Deputy Prime Minister of Ukraine responsible for humanitarian sector (1990-1992), Ambassador of independent Ukraine in the United Kingdom of Great Britain and North Ireland (1992-1998). He is a trustee of activity of charitable organization of disabled children Special Olympics - Ukraine (since 2002). He was awarded a Diploma of the Supreme Council of Ukraine (2003), State Order of Merit (III degree - 1996, II degree - 1998), State Order of Prince Yaroslav the Wise (V degree - 2005). Serhiy Komisarenko was elected the Honorary Doctor of Kingston and North London Universities (1997). He has the Rank of Ambassador Extraordinary and Plenipotentiary of Ukraine.     

Biological behaviour in mice of Trypanosoma cruzi isolates from Amazonas and Paraná, Brazil

The biological behaviour of 23 Trypanosoma cruzi isolates in Swiss mice was compared. Nineteen isolates were obtained from patients in the acute phase of Chagas disease (13), sylvatic reservoir hosts (Didelphis marsupialis) (3), and triatomine bugs (Rhodnius robustus) (3) from four regions of the State of Amazonas (AM). Four isolates were obtained from chronic chagasic patients in the State of Paraná (PR): three autochthones, and one allochthone from the State of Minas Gerais. Only one isolate was unable to infect the mice. The AM and PR isolates showed the largest number of significant differences from each other. The former had lower mean values in the pre-patent (5.4 days) and patent (4.6 days) periods (PP), with the parasitaemia (Pmax) reaching a peak of 9.9×10(4) blood trypomastigotes (BT)/mL of blood by the 7th day following inoculation. The AM isolates also had higher positivity to fresh-blood examination (FBE) (84.1%) compared to haemoculture (HC) (58.7%) and polymerase chain reaction (PCR) (33.3%), in addition to higher mortality (2.9%). The PR isolates had higher values for PP (18.5 days) and Pmax (99.9×10(4)BT/mL) as well as higher positivity to FBE (87.2%), HC (100%), and PCR (83.3%). The correlations between the biological behaviour of the T. cruzi isolates and the clinical and epidemiological characteristics of Chagas disease are discussed.     

Africanizing Science in Post-colonial Kenya: Long-Term Field Research in the Amboseli Ecosystem, 1963–1989

Following Kenya’s independence in 1963, scientists converged on an ecologically sensitive area in southern Kenya on the northern slope of Mt. Kilimanjaro called Amboseli. This region is the homeland of the Ilkisongo Maasai who grazed this ecosystem along with the wildlife of interest to the scientists. Biologists saw opportunities to study this complex community, an environment rich in biological diversity. The Amboseli landscape proved to be fertile ground for testing new methods and lines of inquiry in the biological sciences that were generalizable and important for shaping natural resource management policies in Kenya. However, the local community was in the midst of its own transformation from a primarily transhumant lifestyle to a largely sedentary one, a complex political situation between local and national authorities, and the introduction of a newly educated generation. This article examines the intersection of African history and field science through the post-colonial Africanization of Kenyan politics, the broadening of scientific practices in Amboseli in previously Western-occupied spaces to include Kenyan participants, and an increasing awareness of the role of local African contexts in the results, methods, and implications of biological research. “Africanization” as an idea in the history of science is multifaceted encompassing not just Africans in the scientific process, but it needs an examination of the larger political and social context on both a local and national level.     

Current forest carbon stocks and carbon sequestration potential in Anhui Province,China北大核心CSCD

Aims This study was conducted to investigate carbon stocks in forest ecosystems of different stand ages in Anhui Province, and to identify the carbon sequestration potential of climax forests controlled by the natural environment conditions. Methods Data were collected based on field investigations and simulations were made with the BIOME4 carbon cycle model. Important findings Currently, the total forest carbon stocks in Anhui Province amounts to 714.5 Tg C: 402.1 Tg C in vegetation and 312.4 Tg C in soil. Generally, both the total and vegetation carbon density exhibit an increasing trend with the natural growth of forest stands. Soil carbon density increases from young to near mature forests, and then gradually decreases thereafter. Young and middle-aged forests account for 75% of the total forest area in Anhui Province, with potentially an additional 125.4 Tg C to be gained after the young and middle-aged forests reach near mature stage. Results of BIOME4 simulations show that potentially an additional 245.7 Tg C, including 153.7 Tg C in vegetation and 92 Tg C in soil, could be gained if the current forests are transformed into climax forest ecosystems in Anhui Province.     

Current status of alien vertebrates in the Galápagos Islands: invasion history, distribution, and potential impacts

Human activity has promoted the invasion of the Galápagos Islands by alien species from each of the five classes of vertebrates. We review the current distribution of alien vertebrates in the archipelago, their impacts on native species, and management efforts aimed at alien vertebrates. A total of 44 species have been reported in the archipelago, with 20 species establishing feral populations. Mammals were the first group arriving in the archipelago and remain the most numerous, with 10 established species. Alien birds invaded after mammals and four species have established populations. Reptiles, amphibians, and fish invaded later and are represented by three, one, and two species, respectively. Alien mammals are the most injurious to native biota, contributing to the decline or extinction of several species. Aside from mammals, no other class of alien vertebrate has had documented impacts on native species. Several populations of large and medium-sized mammals and birds have been eradicated.