Safety of neonatal skin cleansing in rural Nepal

OBJECTIVE: A high proportion of deaths during the neonatal period are attributed to infections. Neonatal skin plays an important role in protecting the newborn from invasive pathogens. In preparation for a study of newborn skin cleansing with chlorhexidine in Nepal, we evaluated the feasibility, acceptability, and safety of the newborn cleansing procedure. STUDY DESIGN/SETTING: Observational pilot study of full-body cleansing of newborns in rural Nepal. METHODS: Thirty two newborn infants were wiped with commercially available non-antiseptic baby wipes. Pre and post-procedure axillary temperatures were recorded to estimate the impact of cleansing on body temperature. Skin aggravation, residual moisture, removal of vernix, and maternal satisfaction were assessed qualitatively. RESULTS: Body temperature of newborns decreased an average of 0.40 C (95% CI: 0.31 to 0.49 C, p < 0.0001) during the procedure. There was no evidence of skin aggravation, injury or removal of vernix, and mothers expressed satisfaction with the procedure. The procedure was simple and project workers were easily trained. CONCLUSION: Care must be taken to promptly wrap infants after skin cleansing procedures as slight temperature decrease was noted after the procedure. These pilot data indicate, however, that gentle cleansing of newborn skin poses minimal risk to infants. This procedure is safe and appropriate precautions can be taken to deliver safe skin antisepsis with chlorhexidine to infants in the community.     

Safety and effect of chlorhexidine skin cleansing on skin flora of neonates in Bangladesh

BACKGROUND: Chlorhexidine cleansing of newborn skin is a highly promising intervention for reducing neonatal mortality in developing countries, yet little is known of the mechanism of action. This study examined the impact of a single skin cleansing of hospitalized newborn infants in Bangladesh with baby wipes containing 0.25% chlorhexidine on both qualitative and quantitative skin flora. METHODS: Within 72 hours of birth, the skin of newborns admitted to Dhaka Shishu Hospital was wiped with baby wipes containing 0.25% chlorhexidine (n = 67) or placebo (n = 66) solution. Skin condition was assessed and skin swabs were taken from 3 sites (axillary, peri-umbilical, inguinal) at baseline and 2 hours, 24 hours, 3 days and 7 days after treatment. Skin flora was quantified and colonizing species were identified. FINDINGS: Skin cleansing with chlorhexidine had no adverse effects on skin condition, and resulted in minimal reduction (mean 0.5 degrees C) in body temperature. Positive skin culture rates 2 hours after skin cleansing were approximately 35%-55% lower than the baseline rates for placebo and chlorhexidine groups at all 3 sites. For the chlorhexidine group, positive skin culture rates remained significantly lower than the baseline rates for 24 hours to 3 days, whereas for the placebo group, beyond the first 2-hour follow-up, these values were not lower than baseline in any of the 3 sites. INTERPRETATION: Chlorhexidine skin treatment produced more extended skin cleansing effects than the placebo treatment. It is possible that the quantitative and qualitative reductions observed in the skin flora might contribute to reducing neonatal infections.     

Critical ovarian hyperstimulation syndrome in a coasted in-vitro fertilization patient

We report an instance of critical ovarian hyperstimulation syndrome in a highly responsive in-vitro fertilization patient despite the preventive measure of a 4 day 'coast' interval during which no gonadotrophins were administered while gonadotrophin-releasing hormone agonist therapy continued until serum oestradiol concentrations fell below 3000 pg/ml.      

The miRNA landscape of colorectal polyps

The genomic landscape of adenomas and polyps may help define disease pathways. Expression of miRNAs in adenomas and polyps may importantly contribute to these pathways. We evaluated miRNA expression in 293 polyp‐normal colorectal mucosa pairs. Polyps were classified as either adenomatous polyp (AD), hyperplastic polyp (HP), or sessile serrated polyp (SSP). We compared these miRNA expression profiles in polyps to miRNA expression in microsatellite unstable (MSI) and stable (MSS) tumors. A False Discovery Rate of 0.05 based on Benjamini and Hochberg was used to adjust for multiple comparisons. There were 70 miRNAs with differential expression by polyp type with a fold change <0.75 or >1.34 after adjusting for multiple comparisons. The major differences in miRNA expression were observed between AD and SSP and AD and HP, with few differences in expression noted for SSP and HP. AD polyps were more likely to be upregulated from normal colonic mucosa, while SSP and HP were more likely to be downregulated from normal colonic mucosa. MiRNA expression in the SSP and HP tumors almost uniformly go in opposite directions from the MSS tumor miRNA expression and was mixed with MSI tumors. We conclude that different types of polyps have unique miRNA expression profiles. © 2017 Wiley Periodicals, Inc.     

Prevalence and risk of migraine headaches in adult fragile X premutation carriers

FMR1 premutation carriers are common in the general population (1/130–260 females and 1/250–810 males) and can be affected by fragile X‐associated tremor ataxia syndrome, fragile X‐associated primary ovarian insufficiency, anxiety, depression, hypertension, sleep apnea, fibromyalgia, and hypothyroidism. Here we report the results of a pilot study to assess the prevalence and risk of migraine in FMR1 premutation carriers. Three hundred fifteen carriers (203 females; 112 males) and 154 controls (83 females; 71 males) were seen sequentially as part of a family study. A standardized medical history, physical examination and confirmation of diagnosis of migraine headaches were performed by a physician. The prevalence of migraine was 54.2% in female carriers (mean age/SD: 49.60/13.73) and 26.79% in male carriers (mean age/SD: 59.94/14.27). This prevalence was higher compared to female (25.3%; mean age/SD: 47.60/15.21; p = 0.0001) and male controls (15.5%; mean age/SD; 53.88/13.31; p = 0.0406) who underwent the same protocol and were confirmed to be negative for the FMR1 mutation by DNA testing. We hypothesize that the increased prevalence of migraine headaches in FMR1 premutation carriers is likely related to the mitochondrial abnormalities that have recently been reported. Screening for migraine should be considered when evaluating FMR1 premutation carriers in the future.     

Antimicrobial, Wound Healing and Antioxidant Activities of Anthocephalus Cadamba

Anthocephalus cadamba (Roxb.) Miq. Syn A. chinensis (Lamk) A. Rich (Rubiaceae) is ethnomedicinally widely used in the form of paste by tribe in western Ghats for treating skin diseases. In this context, antimicrobial potential of A. cadamba against a wide range of microorganisms was studied. To validate the ethnotherapeutic claims of the plant in skin diseases, wound healing activity was studied, besides antioxidant activity to understand the mechanism of wound healing. The alchoholic and aqueous extract of this plant showed significant antibacterial and antifungal activity against almost all the organisms: Micrococcus luteus, Bacillus subtilis, Staphylococcus aureus, Escherichia coli, Klebsiella pneumoniae, Proteus mirabilis, Pseudomonas aeruginosa, and four fungi Candida albicans, Trichophyton rubrum—dermatophyte fungi, Aspergillus niger, Aspergillus flavus and Aspergillus nidulans—systemic fungi, with especially good activity against the dermatophyte (Trichophyton rubrum) and some infectious bacteria (Escherichia coli, Proteus mirabilis and Staphylococcus aureus) with an MIC of 2.5 µg/disc. The results show that A. cadamba extract has potent wound healing capacity as shown from the wound contraction and increased tensile strength. The results also indicated that A. cadamba extract possesses potent antioxidant activity by inhibiting lipid peroxidation and increase in the superoxide dismutase (SOD) and catalase activity.     

Characterization of a cell surface protein of Clostridium difficile with adhesive properties

Our laboratory has previously shown that Clostridium difficile adherence to cultured cells is enhanced after heat shock at 60 degrees C and that it is mediated by a proteinaceous surface component. The present study was undertaken to identify the surface molecules of this bacterium that could play a role in its adherence to the intestine. The cwp66 gene, encoding a cell surface-associated protein of C. difficile 79-685, was isolated by immunoscreening of a C. difficile gene library with polyclonal antibodies against C. difficile heated at 60 degrees C. The Cwp66 protein (66 kDa) contains two domains, each carrying three imperfect repeats and one presenting homologies to the autolysin CwlB of Bacillus subtilis. A survey of 36 strains of C. difficile representing 11 serogroups showed that the 3' portion of the cwp66 gene is variable; this was confirmed by sequencing of cwp66 from another strain, C-253. Two recombinant protein fragments corresponding to the two domains of Cwp66 were expressed in fusion with glutathione S-transferase in Escherichia coli and purified by affinity chromatography using gluthatione-Sepharose 4B. Antibodies raised against the two domains recognized Cwp66 in bacterial surface extracts. By immunoelectron microscopy, the C-terminal domain was found to be cell surface exposed. When used as inhibitors in cell binding studies, the antibodies and protein fragments partially inhibited adherence of C. difficile to cultured cells, confirming that Cwp66 is an adhesin, the first to be identified in clostridia.