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From sneezes to adieux: stages of health for American men and women.

This article traces health from daily symptoms to death for American (U.S.) men and women in three age groups 17-44, 45-64, 65+. How do leading problems change as our perspective shifts from daily symptoms to annual incidence and prevalence rates of diseases and injuries; then to problems that induce long term limitations; to conditions brought to physicians for care; to diagnoses for hospital stays; and finally to causes of death? We study the top 15 conditions in each of these stages of health. Young adults are bothered most by acute and chronic respiratory diseases, but deaths among them are due to diseases and violent injuries that seldom figure in daily life. Fatal chronic diseases becomes more prevalent in middle ages and spur professional care, but they rarely cause daily symptoms. For older people, life threatening chronic conditions stretch through all stages of health. Arthritis also becomes a dominant facet of symptoms, social limitations and ambulatory care. Men's and women's leading daily symptoms are very similar; so are their leading acute and chronic conditions, limiting conditions, diagnoses for health care and causes of death. What distinguishes the sexes is the rate, not the ranks, of health problems they suffer. We elaborate the iceberg of morbidity metaphor, as a device to highlight stage, age and sex differences in health.

Acute Disease↗

Optic neuritis is nothing to sneeze at.

A 36-year-old man developed acute visual loss, mimicking an optic neuritis in the left eye. Cranial magnetic resonance imaging revealed a sphenoid sinus mucocele with extension into the anterior clinoid process abutting the left optic nerve. Endoscopic marsupialization of the mucocele led to marked improvement of vision. Sphenoid sinus mucocele is discussed, as is the differential diagnosis of optic neuritis.

Adult↗

Escherichia coli gets a new virus but it's nothing to sneeze at.

For the past two decades virologists have strived to make full-length clones of viral genomes that, on transfection into permissive eukaryotic cells, initiate a productive infection. The large variety of viral RNA and DNA genome structures, as well as different replication strategies, has required investigators to develop new approaches to produce infectious DNA in Escherichia coli. A member of the poxviridae, one of the most complex virus families, has now been made into an infectious clone in E. coli for the first time. Although the isolation was complicated, the infectious clone will greatly simplify future genetic studies of the virus.

Cloning, Molecular↗

Bright sneezes and dark coughs, loud sunlight and soft moonlight.

Synesthetic metaphors (such as "the dawn comes up like thunder") are expressions in which words or phrases describing experiences proper to one sense modality transfer their meanings to another modality. In a series of four experiments, subjects used scales of loudness, pitch, and brightness to evaluate the meanings of a variety of synesthetic (auditory-visual) metaphors. Loudness and pitch expressed themselves metaphorically as greater brightness; in turn, brightness expressed itself as greater loudness and as higher pitch. Although loudness thus shared with brightness a metaphorical connection, pitch and brightness showed a connection that was closer and that applied more generally to different kinds of visual brightness. The ways that people evaluate synesthetic metaphors emulate the characteristics of synesthetic perception, thereby suggesting that synesthesia in perception and synesthesia in language both may emenate from the same source-from a phenomenological similarity in the makeup of sensory experiences of different modalities.

Adult↗

Sensitization to dust mites in children with allergic rhinitis in Singapore: does it matter if you scratch while you sneeze?

BACKGROUND: Previously published data established Blomia tropicalis, as the major source of allergic sensitization in asthmatic children in tropical Singapore. Objective To define the prevalence, clinical characteristics and risk factors of species-specific mite sensitization in paediatric allergic rhinitis (AR) patients in this unique environment. METHODS: We performed a prospective evaluation of newly diagnosed AR patients, from 1 May 2003 to 30 April 2004, from the otolaryngology and allergy outpatient clinics of the Kendang Kerbau Children's Hospital in Singapore. Patients included in the study showed evidence of sensitization to at least one respiratory allergen source and completed a detailed questionnaire. Relative risk of sensitization and associated risk factors were calculated using logistic regression analysis with the forward stepwise model. Multivariate regression analysis was performed to adjust for confounding interactions. Continuous values were compared using anova, SPSS 9.0 for Windows (SPSS Inc., 1999). RESULTS: One hundred and seventy-five patients were included, 119 (68%) males, 142 (81%) Chinese, age mean 7.9 years (range 2-16). Sixty-eight patients (39%) reported a concomitant diagnosis and/or clinical complaints of bronchial asthma and 84 (48%) of atopic dermatitis. Skin prick test results were positive for traditional house dust mites (Dermatophagoides pteronyssinus. and D. farinae mix) in 85% of patients and for B. tropicalis in 62%. Overall mite sensitization was 98%, household pets 10%, moulds 9% and food proteins 12%. By far the single most significant factor associated with Dermatophagoides sensitization in this group was the presence of allergic eczema (odds ratio (OR) 31.8%, 95% confidence interval (CI) 3.6-285, P=0.002). Allergic eczema was negatively associated with B. tropicalis sensitization (OR 0.26%, 95% CI 0.14-0.5). CONCLUSIONS: Children with AR and concomitant atopic dermatitis show a preferential sensitization to the Dermatophagoides mites. In our population, B. tropicalis sensitization is more prominent in children with pure respiratory allergy.

Adolescent↗