Diamondback moth, Plutella xylostella (L.) (Lepidoptera: Yponomeutidae) showed a high resistance to chlorfluazuron by laboratory selection. However, this resistance was not stable under the laboratory condition without chlorfluazuron selection. When in vivo metabolism of 14C-chlorfluazuron was studied, higher metabolic activities were observed in the chlorfluazuron resistant strain than in the ...

The biochemical characteristics of 97 invasive Escherichia coli strains of different O serogroups were studied. Considered as a group, the behavior of the strains was quite variable. However, none of them decarboxylated lysine and all but seven strains, belonging to the O124 serogroup, were nonmotile. The growth of 25 strains obtained on MacConkey, salmonella-shigella, xylose-lysine-desoxychola...

Cardiovascular and other blood related diseases are fast replacing communicable diseases; therefore there is need to constantly monitor our specific deleterious parameters and their associates. In this work, blood samples were collected to determine biochemical parameters: total cholesterol (TC), high density lipoproteincholesterol (HDL C), low density lipoproteincholesterol (LDL-C), very low d...

Hepatic lipase (HL) is an important enzyme in the metabolism of triglyceride-rich lipoproteins and high density lipoproteins. The clinical syndrome of HL deficiency is rare and difficult to identify. We studied carriers of mutant HL to ascertain whether there are distinctive clinical and/or biochemical characteristics of the heterozygous state. In an Ontario kindred, compound heterozygosity for...

IGFs have multiple functions regarding cellular growth, survival and differentiation under different physiological and pathological conditions. IGF effects are modulated systemically and locally by six high-affinity IGF-binding proteins (IGFBP-1 to -6). Despite their structural similarity, each IGFBP has unique properties and exhibits specific functions. IGFBP-4, the smallest IGFBP, exists in b...

Objective: The purpose of the present study was to examine the impact of menstrual cycle abnormalities among patients with polycystic ovary syndrome (PCOS) on biochemical and anthropometric characteristics. Materials and methods: We conducted a prospective observational study of patients 17-35 years of age with PCOS that attended the department of Gynecological Endocrinology of our hospital. Re...

The structure of the iron-binding glycoprotein lactoferrin, present in milk and other exocrine secretions, has been elucidated in great detail, both the three-dimensional protein structure and the attached N-glycans. Structure-function relationships are being established. From these studies a function for lactoferrin in host defence and modulation of iron metabolism emerges. This paper describe...

Hormone level differences are generally accepted as the primary cause for sexual dimorphism in animal and human development. Levels of low molecular weight metabolites also differ between men and women in circulating amino acids, lipids and carbohydrates and within brain tissue. While investigating the metabolism of blue crab tissues using Phosphorus-31 Nuclear Magnetic Resonance, we discovered...