Availability of menthol cigarettes in Oakland, California after a partial flavor ban.

This study measures the availability of menthol cigarettes in Oakland, California where such products were banned from the majority of tobacco retailers, except for those who sold a significant amount of tobacco (e.g., 60% gross income). Out of a total of 385 retailers in Oakland, only forty-eight retailers were exempt from this ban at the time of data collection. In February 2019, seven months after the ban went into effect, we selected a stratified random sample of 15 census tracts, based on race/ethnicity. In pairs, data collectors walked on opposite sides of the street and collected all discarded cigarette packs (n = 641) from the streets and sidewalks on weekdays. Overall, we found almost half (46.0%; 95% CI = 32.6%-59.3%) of the packs collected were menthol, with Newport as the dominant brand. We found at least one pack of menthol cigarettes in 14 of the 15 sampled census tracts. In predominantly black/African American census tracts, the proportion of menthol cigarettes collected was significantly higher (70.1%; 95% CI = 62.6%-77.7%) when compared to mixed race/ethnicity (55.9%; 95% CI = 41.0-70.9%) and white tracts (35.1%; 95% CI = 13.2%-57.1%). Finally, there was a moderate and negative correlation between distance to exempt tobacco retailer and menthol availability (r = -0.66, p < .05). The proportion of menthol cigarette packs decreased the further away census tracts were from exempt tobacco retailers. Results from this study lend support that partial bans provide disproportionate availability of menthol cigarettes in black/African American census tracts. Complete bans may help eliminate disparities associated with menthol cigarette use across communities.

Changes in Tobacco Product Advertising at Point of Sale: 2015-2018.

OBJECTIVES: Tobacco point-of-sale advertising, particularly in retailers surrounding schools, is associated with youth tobacco use and must be monitored. This study examines how the point-of-sale environment surrounding youth changed over time with regard to diverse tobacco products. METHODS: Each spring from 2015 to 2018, research staff visited the same tobacco retailers (n = 141) within a half-mile of New Jersey high schools. For cigarettes, cigars, electronic cigarettes, and smokeless tobacco, advertisement presence, volume, and share of advertising voice (SAV) were measured for both the exterior and interior of the store. Analyses examined changes over time by product, controlling for store type and poverty. RESULTS: Over time, exterior cigarette advertisements declined in presence (61% to 49%) and SAV (50% to 40%), whereas interior advertisements maintained stable presence, volume, and SAV. In contrast, cigar advertisements increased in presence (exterior 11% to 23%; interior 19% to 30%) and volume (exterior mean 0.2 to 0.5; interior 0.3 to 0.8). For electronic cigarettes, exterior and interior advertising presence, volume, and SAV decreased from 2015 to 2017 but increased in 2018. Smokeless tobacco advertising was infrequent and stayed consistent except in volume in the interior of stores (mean 0.2 to 0.3). When there were any differences by store type, chain convenience stores had the most exterior and interior advertising for all products. CONCLUSIONS: The longitudinal changes observed for each product's advertising reflect national youth use rates of the corresponding products. The point-of-sale environment around schools may be influencing youth tobacco use and must be monitored and regulated.

Categorising characteristics of counterfeit Marlboro cigarettes: a systematic review of tobacco industry documents.

BACKGROUND: There is scant research on methods used to identify counterfeit Marlboro cigarettes. METHODS: Systematic analysis of internal tobacco industry documents characteristics of counterfeit Marlboro cigarettes. RESULTS: In the industry documents we identified as relevant, there were 42 characteristics of counterfeit Marlboro cigarettes. Overall, physical characteristics (88.1%) were the most commonly identified features across all locations, with the pack blank, cardboard shell of the cigarette pack, as the dominant site (30.9%). Some of the physical characteristics included offset lithography printing, incorrect font and colour. Overall, light microscopy was identified as the main method of forensic analysis for detecting counterfeits. CONCLUSION: Independent researchers employing litter pack and pack swap surveys are encouraged to use the characteristics identified in the study to gauge the prevalence of counterfeit Marlboro cigarettes and compare against industry estimates.

A discarded cigar package survey in New York City: indicators of non-compliance with local flavoured tobacco restrictions.

INTRODUCTION: In 2009, New York City (NYC) restricted the sale of flavoured tobacco products. We assessed product availability as a proxy for potential non-compliance by analysing discarded cigar, cigarillo and blunt wrap packages in New York City. METHODS: A discarded cigar package survey was conducted in 2016, in a stratified random sample of 94 block groups in NYC resulting in the collection of 886 discarded cigar packages. Each package was coded for brand name, flavour description (explicit and implicit) and size. FINDINGS: Overall, 19.2% of the cigar packages were explicitly flavoured. An additional 9.4% of the packages reflected implicit flavours. Explicit flavoured cigar packages were at increased odds of being found in Staten Island (adjusted OR (AOR)=3.96, 95% CI=1.66 to 9.46), in packaging size of two or three (AOR=8.49, 95% CI=4.24 to 17.02) or four or more (AOR=4.26, 95% CI=1.95 to 9.30). CONCLUSION: Nearly one out of three cigar packages were flavoured products suggesting a problematic level of non-compliance and continued availability. Potential non-compliance is likely fueled by licensed wholesalers and retailers who continue to sell restricted flavoured products. Some retailers may be unaware that implicitly named cigars are typically flavoured and are, therefore, illegal. This lack of awareness of implicit flavoured cigars may be exacerbated by NYC's lack of education or enforcement specific to implicitly flavoured tobacco products.

Genetic Relationships and Spatial Genetic Structure Among Populations of Rhodnius prolixus (Hemiptera: Reduviidae) in Colombia and Venezuela Based on Mitochondrial Cytochrome-b Sequences.

One hundred twenty Rhodnius prolixus (Stal) (Hemiptera: Reduviidae) specimens from 6 Colombian Departments and 1 Venezuelan State had 594-bp of the mitochondrial cytochrome-b gene sequenced to improve the understanding of evolutionary processes that shape the main vector of Chagas disease. The levels of genetic diversity for this species were low-medium with reference to other bugs. The genetic heterogeneity among the populations was very limited which means there has been extensive gene flow and/or very recent split processes. The overall sample as well as some individual populations showed evidence of recent population expansions (with the exception of Arauca, which yielded evidence of a bottleneck for a mismatch distribution). This expansion (11,000 or 2000-25,000 year ago depending of two procedures employed) coincides with the ending of the last intense glacial conditions during the Pleistocene and the beginning of the Holocene that had a warmer and wetter climate. Some of our autocorrelation analyses (AIDA and Genetic Landscape Interpolation Analysis) indicated local patches of high genetic similarity but no globally significant spatial structure. We did show an original haplotype distributed throughout the entirety of the geographical area studied.

OVLT lesion decreases basal arterial pressure and the chronic hypertensive response to AngII in rats on a high-salt diet.

We have reported that lesion of the organum vasculosum of the lamina terminalis (OVLT) has no effect on basal levels of mean arterial pressure (MAP) but abolishes the hypertensive effects of angiotensin II (AngII) in rats consuming a normal-salt diet. These results suggest that the OVLT does not contribute to regulation of MAP under conditions of normal salt intake, but it is an important brain site for the hypertensive actions of AngII. The OVLT has been proposed as a major sodium sensor in the brain and the hypertensive effects of AngII are exacerbated by high-salt intake. Therefore, the objective of this study was to investigate the role of the OVLT during AngII-induced hypertension in rats fed a high-salt diet. Male Sprague-Dawley rats underwent sham (Sham; n = 9) or OVLT lesion (OVLTx; n = 8) surgery and were placed on a high-salt (2% NaCl) diet. MAP was measured by radio telemetry during three control days, 10 days of AngII infusion (10 ng/kg/min, i.v.), and a 3-day recovery period. MAP was significantly lower in OVLTx (97 ± 2 mmHg) compared to Sham (106 ± 1 mmHg) rats during the control period (P < 0.05). Moreover, the chronic pressor response to AngII was markedly attenuated in OVLTx rats. MAP increased 58 ± 3 mmHg in Sham rats by Day 10 of AngII compared to a 40 ± 7 mmHg increase in OVLTx rats (P < 0.05). We conclude that (1) the OVLT regulates the basal levels of MAP in rats consuming a high-salt and (2) the OVLT is an important brain site of action for the pathogenesis of AngII-salt hypertension in the rat. Supported by HL076312.

The illegal cigarette market in a socioeconomically deprived inner-city area: the case of the South Bronx.

OBJECTIVE: To determine the scope of the cigarette black market in a socioeconomically deprived inner-city area in the US, taking the South Bronx in New York City as a case study. DESIGN: The South Bronx Litter Pack Survey collected discarded cigarette packs (n=497) along 30 randomised census tracts to quantify the prevalence of counterfeit, legal and out-of-state tax stamps. RESULTS: It was found that 76.2% of cigarette packs collected avoided the combined New York City and State tax. More specifically, 57.9% were untaxed (counterfeit or bearing no tax stamp), for 15.8% taxes were paid outside of New York City (including other states and New York State only). Only 19.4% of tax stamps collected indicated that New York City and New York State taxes were paid. 4.4% of the cigarette packs could not be analysed because the tax stamps were not discernible. The finding that the majority of cigarettes did not have a tax stamp or bore a counterfeit tax stamp suggests that these cigarettes were being bootlegged, most likely from Native American Reservations. CONCLUSIONS: The present study highlights the importance of examining the illegal cigarette market in socioeconomically deprived regions of the US, where tax avoidance and black market activities appear to far exceed levels found elsewhere in the country including Chicago and New York City at large.

A novel myelin protein zero (V136G) homozygous mutation causing late onset demyelinating polyneuropathy with brain white matter lesions.

Although less common than peripheral myelin protein 22 (PMP22) duplication, there are mutations in myelin protein zero (MPZ) responsible for Charcot-Marie-Tooth disease (CMT) with a number of different clinical profiles. We report here a novel MPZ homozygous mutation, with a peculiar pattern characterized by a late-onset demyelinating profile. In addition, the patient presented brain white matter lesions seemingly ascribable to the mutation.

Prescription of antibiotics in intensive care units in Latin America: an observational study.

A one-day point prevalence study to investigate the patterns of antibiotic use was undertaken in 43 latin American (LA) intensive care units. Of 510 patients admitted, 231 received antibiotic treatment on the day of the study (45%); in 125 cases (54%) due to nosocomial-acquired infections. The most frequent infection reported was nosocomial pneumonia (43%). Only in 122 patients (53%) were cultures performed before starting antibiotic treatment. 33% of the isolated microorganisms were enterobacteriaceae (40% extended-spectrum beta-lactamase-producing), 23% methicillin-resistant Staphylococcus aureus and 17% carbapenems-resistant non-fermentative Gram-negatives. The antibiotics most frequently prescribed were carbapenems (99/231, 43%); alone (60/99, 60%) or in combination with vancomycin (39/99, 40%). "Restricted" antibiotics (carbapenems, vancomycin, piperacillin-tazobactam, broad-spectrum cephalosporins, tigecycline, polymixins and linezolid) were most frequently indicated in severely ill patients (APACHE II score at admission >15, p=0.0007 and, SOFA score at the beginning of the antibiotic treatment >3, p=0.0000). Only 36% of antibiotic treatments were cultured-directed.Our findings help explain the high rates of multidrug-resistant pathogens in LA settings (i.e. ESBL-producing Gram-negatives) and the severity of the registered patients illnesses.

Evaluation of factors affecting serum IgG concentrations in bottle-fed calves.

OBJECTIVE: To determine the effect of time interval from birth to first colostrum feeding on colostrum intake and serum IgG concentration and the effect of varying colostral volume intake and colostral IgG concentration on the probability of failure of passive transfer (FPT) in bottle-fed calves. DESIGN: Randomized controlled study. ANIMALS: 104 calves. PROCEDURES: Equal numbers of calves were randomly assigned to groups and fed 3 L of their dam's colostrum at 1, 2, 3, or 4 hours after birth by use of a nipple bottle. Calves were allowed to feed for 15 minutes, and intake was recorded. A second 3-L bottle feeding of colostrum was offered at 12 hours of age. RESULTS: 17.2% of calves ingested 3 L of colostrum at the first feeding and 3 L at 12 hours of age. Calf age, up to 4 hours, had no significant effect on the calf's ability to ingest colostrum or on 48-hour serum IgG concentration. Colostral intake at 1, 2, 3, or 4 hours had no effect on intake at the second feeding. Probability of FPT in calves ingesting 3 L at both feedings was < 0.05. CONCLUSIONS AND CLINICAL RELEVANCE: Allowing calves fed by nipple bottle to ingest as much colostrum as they can within 4 hours after birth and at 12 hours of age substantially reduced the probability of FPT. Bottle-fed calves that do not ingest 3 L of colostrum within the first 4 hours after birth should be targeted for oroesophageal intubation.

L-carnitine reduces brain injury after hypoxia-ischemia in newborn rats.

Perinatal hypoxia-ischemia remains a significant cause of neonatal mortality and neurodevelopmental disability. Numerous lines of evidence indicate that cerebral ischemic insults disrupt normal respiratory activity in mitochondria. Carnitine (3-hydroxy-4-N-trimethylammonium-butyrate) has an essential role in fatty acid transport in the mitochondrion and in modulating potentially toxic acyl-CoA levels in the mitochondrial matrix. There are no naturally occurring esterases available to reduce the accumulation of acyl-CoA but this process can be overcome by exogenous carnitine. We used a newborn rat model of perinatal hypoxia-ischemia to test the hypothesis that treatment with l-carnitine would reduce the neuropathologic injury resulting from hypoxia-ischemia in the developing brain. We found that treatment with l-carnitine during hypoxia-ischemia reduces neurologic injury in the immature rat after both a 7- and 28-d recovery period. We saw no neuroprotective effect when l-carnitine was administered after hypoxia-ischemia. Treatment with d-carnitine resulted in an increase in mortality during hypoxia-ischemia. Carnitine is easy to administer, has low toxicity, and is routinely used in neonates as well as children with epilepsy, cardiomyopathy, and inborn errors of metabolism. l-Carnitine merits further investigation as a treatment modality for the asphyxiated newborn or as prophylaxis for the at-risk fetus or newborn.

Wide scope prenatal diagnosis at Kuopio University Hospital 1997-1998: integration of gene tests and fetal karyotyping.

OBJECTIVE: To investigate the applicability of carrier screening in women undergoing invasive prenatal diagnosis. DESIGN: Prospective study. SETTING: University-based clinic. PARTICIPANTS: Two hundred and fifty-six pregnant women. METHODS: Gene tests were offered for fragile X syndrome, aspartylglycosaminuria and infantile neuronal ceroid lipofuscinosis at the time of invasive prenatal testing. RESULTS: The overall uptake of the tests was 92%. Previously unrecognised carriership was found in 10 women: aspartylglycosaminuria (7); infantile neuronal ceroid lipofuscinosis (2) and fragile X (1). Fetal genotyping was carried out in one carrier of aspartylglycosaminuria whose partner was also a carrier, and in one woman who was found to have fragile X premutation. Both fetuses were unaffected. CONCLUSION: Carrier screening for single-gene disorders is feasible and well accepted among pregnant women undergoing invasive prenatal testing. The major benefit is that there is no need to consider extra invasive tests when carriership is detected. Incorporation of genetic testing into fetal karyotyping gives more security to future parents.

Expression of the ggpS gene, involved in osmolyte synthesis in the marine cyanobacterium Synechococcus sp. Strain PCC 7002, revealed regulatory differences between this strain and the freshwater strain Synechocystis sp. Strain PCC 6803.

Synthesis of the osmolyte glucosylglycerol (GG) in the marine cyanobacterium Synechococcus sp. strain PCC 7002 was characterized. The ggpS gene, which encodes the key enzyme (GG-phosphate synthase [GgpS]) in GG biosynthesis, was cloned by using PCR. A 2,030-bp DNA sequence which contained one open reading frame (ORF) was obtained. The protein deduced from this ORF exhibited 85% similarity to the GgpS of the freshwater cyanobacterium Synechocystis sp. strain PCC 6803. The function of the protein was confirmed by generating a ggpS null mutant, which was not able to synthesize GG and thus exhibited a salt-sensitive phenotype. Expression of the ggpS gene was analyzed in salt-shocked cells by performing Northern blot and immunoblot experiments. While almost no expression was detected in cells grown in low-salt medium, immediately after a salt shock the amounts of ggpS mRNA and GgpS protein increased up to 100-fold. The finding that salt-induced expression occurred was confirmed by measuring enzyme activities, which were negligible in control cells but clearly higher in salt-treated Synechococcus sp. cells. The salt-induced increase in GgpS activity could be inhibited by adding chloramphenicol, while in protein extracts of the freshwater cyanobacterium Synechocystis sp. strain PCC 6803 a constitutive, high level of enzyme activity that was not affected by chloramphenicol was found. A comparison of GG accumulation in the two cyanobacteria revealed that in the marine strain osmolyte synthesis seemed to be regulated mainly by transcriptional control, whereas in the freshwater strain control seemed to be predominantly posttranslational.

The ggpS gene from Synechocystis sp. strain PCC 6803 encoding glucosyl-glycerol-phosphate synthase is involved in osmolyte synthesis.

A salt-sensitive mutant of Synechocystis sp. strain PCC 6803 defective in the synthesis of the compatible solute glucosylglycerol (GG) was used to search for the gene encoding GG-phosphate synthase (GGPS), the key enzyme in GG synthesis. Cloning and sequencing of the mutated region and the corresponding wild-type region revealed that a deletion of about 13 kb occurred in the genome of mutant 11. This deletion affected at least 10 open reading frames, among them regions coding for proteins showing similarities to trehalose (otsA homolog)- and glycerol-3-phosphate-synthesizing enzymes. After construction and characterization of mutants defective in these genes, it became obvious that an otsA homolog (sll1566) (T. Kaneko et al., DNA Res. 3:109-136, 1996) encodes GGPS, since only the mutant affected in sll1566 showed salt sensitivity combined with a complete absence of GG accumulation. Furthermore, the overexpression of sll1566 in Escherichia coli led to the appearance of GGPS activity in the heterologous host. The overexpressed protein did not show the salt dependence that is characteristic for the GGPS in crude protein extracts of Synechocystis.