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Dialog Support   >   "How Do I...?" Series   >   Biomedical
Dialog "How Do I...?" - Biomedical: Medicine, Life Sciences, Biotechnology, Agriculture & Food

Find Late-Breaking News About Novel Research?

TOPIC: A quick way to uncover leap-forward biomedical breakthroughs is to search the news databases. Searching the news databases is just a start, but it helps you to unearth announcements that reporters may have picked up from contacts, at medical conferences or by attending meetings at pharmaceutical companies, universities or research centers. Promising developments make great news and great headlines. Take advantage of Dialog NewsRoom (File 990), a comprehensive global news source, which contains virtually all of Dialog’s fulltext news sources. For good measure, add in Dialog Global Reporter (File 20).

In this example, you will hunt down rumors about the discovery of a genetic link to obesity. The only information you have so far is that someone called the gene PCSK 1. Start with File 990, which contains the most current three to four months of data. (See the Bluesheet for details on other file segments going back to 2000.) Then use the Dialog ADD command to include additional database(s) to cover your bases, and REPEAT the search in the two databases.

Once you have significant data and keywords you will want to extend your search into other files in the Biosciences and Biotechnology Industry OneSearch® category BIOBUS. Files in this subject category include Adis Newsletters (Files 429,430), NewsRX Weekly Reports (File 135) and Prous Science Daily Essentials (Files 458,459)

 

COMMAND SUMMARY

BEGIN 990
SELECT (PCSK1 OR PCSK(W)1) AND OBESITY
ADD 20
REPEAT
REMOVE DUPLICATES
TYPE S2/8,K/ALL
TYPE S2/7/1


HOW TO...



1. BEGIN File 990 to search Dialog NewsRoom.

2. SELECT key terms using proximity connectors, such as (W), to search a phrase. Be sure to enclose synonyms in parentheses when ANDing in another term.


?b 990
File 990:NewsRoom Current Apr 01-2008/Jul 22
       (c) 2008 Dialog
      Set  Items  Description
      ---  -----  -----------
?s (pcsk1 or pcsk(w)1) and obesity
               8  PCSK1
               2  PCSK
         5607201  1
               0  PCSK(W)1
          133790  OBESITY
      S1       5  (PCSK1 OR PCSK(W)1) AND OBESITY


3. ADD
another database, such as Dialog Global Reporter.

 

 

 

 

 

4. Enter REPEAT to execute the same search statement again, now including the second file.

 

5. REMOVE DUPLICATES (RD) when searching more than one database.


?add  20
SYSTEM:OS  - DIALOG OneSearch
You have   2 files in your file list.
(To see file names, coverage dates, and copyright notices,
enter SHOW FILES.)
      Set  Items  Description
      ---  -----  -----------
Added File(s): 20
Previous sets have been retained; enter DISPLAY SETS to view them.
?repeat
              10  PCSK1
               5  PCSK
        21798937  1
               0  PCSK(W)1
          216542  OBESITY
      S1       7  (PCSK1 OR PCSK(W)1) AND OBESITY

?rd
      S2       6  RD  (unique items)



6. TYPE
records in Formats 8 and K (KWIC), which together give the title, journal name, publication date, word count, indexing and keywords in context in 30-word windows. Notice the amount of information given with Keywords in Context (KWIC).

Note: Portions of the records are omitted from this display.

To select the appropriate record number, look at the range of records in the TYPE command (e.g., 2/8,K/2).

Note: Some records have been omitted from this display.


?t s2/8,k/all

2/8,K/1 (Item 1 from file: 990)
DIALOG(R)File 990: NewsRoom Current
(c) 2008 Dialog. All rights reserved.

1617547032   18331FXR
TWO STUDIES IDENTIFY GENETIC INFLUENCES UNDERLYING OBESITY: By
Rachael Dobson

BioNews
Sunday , July 20, 2008
Word Count: 603

Company Names: BAYLOR COLLEGE OF MEDICINE; EDITIONS DES DERNIERES
NOUVELLES D'ALSACE SA
Dialog Update Date: 20080722; 08:23:57 EST
Journal Subject: Healthcare
TWO STUDIES IDENTIFY GENETIC INFLUENCES UNDERLYING OBESITY: By
Rachael Dobson


Text:
Researchers at Imperial College London have identified a genetic
link to obesity. Comparing the DNA of over 13,000 obese individuals
to the DNA of non-obese control subjects, they identified three single nucleotide polymorphisms (SNPs) in the PCSK1 gene that were
associated with obesity.

The SNPs - single 'letter' mutations in the DNA code of the PCSK1
gene - were more common in individuals who were obese than in the 
normal weight controls. The three SNPs identified in the study were 
also associated with childhood obesity, as well as less extreme 
weight gain.
The PCSK1 gene is an enzyme that converts inactive
appetite-controlling hormones into their active form. PCSK1 also
controls the hormones insulin and glucagon, which regulate the 
metabolism of sugars and carbohydrates... . . . . ...the first time that we have found a strong link between common mutations and common obesity in the PCSK1 gene', said Professor Froguel. 'We all react differently to an environment that is
becoming more...
- The Daily Telegraph 7/7/2008 'Famished gene is found and could 
help tackle obesity'
- The Daily Telegraph:
http://www.telegraph.co.uk/earth/main.jhtml?xml=/earth/2008/07/07/
scigene107 .xml - Associated Press 6/7/2008 'Hardwired for fat: scientists identify
obesity gene' . . . .
2/8,K/2 (Item 2 from file: 990)
DIALOG(R)File 990: NewsRoom Current
(c) 2008 Dialog. All rights reserved.
1611560151   182R1URQ

Scientists identify common genetic mutations linked to obesity in Europeans
Pharma Company Insight
Tuesday , July 8, 2008
Word Count: 253
Company Names: IMPERIAL COLLEGE LONDON
Dialog Update Date: 20080708; 18:11:24 EST
Industry Names: SCIENCE; ENGINEERING; BIOTECHNOLOGY; PHARMACEUTICAL
INDUSTRY; PREVENTIVE MEDICINE; NUTRITION AND DIETETICS; HEALTH AND FITNESS
Journal Subject: Pharmaceuticals & Biotechnology;Business Management
Scientists identify common genetic mutations linked to obesity in Europeans
Text: ...10.1038/ng.177), the mutations have a significant effect on the risk of common obesity.
The PCSK1 gene is known to code for the proconvertase enzyme, which
is responsible for producing fully-functioning versions of hormones 
such as insulin, glucagon and melanocortin. Changes in the PCSK1 
gene cause relatively minor abnormalities in proconvertase, but 
the effect on the hormones is significant...
To assess the contribution of PCSK1 to polygenic obesity
risk, the team genotyped tag SNPs in a total of 13,659 individuals 
of European...

. . . .

7. TYPE selected records in Format 7, for the full record except indexing.

Note: Part of this record is omitted from the display.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

This article includes references and URLs to sources.

?type s2/7/1

2/7/1 (Item 1 from file: 990)
DIALOG(R)File 990: NewsRoom Current
(c) 2008 Dialog. All rights reserved.

1617547032  18331FXR
TWO STUDIES IDENTIFY GENETIC INFLUENCES UNDERLYING OBESITY: By Rachael Dobson BioNews , n 467 Sunday , July 20, 2008
Word Count: 603

Text: Researchers at Imperial College London have identified a genetic link to obesity. Comparing the DNA of over 13,000 obese individuals to the DNA of non-obese control subjects, they identified three single nucleotide polymorphisms (SNPs) in the PCSK1 gene that were associated with obesity.
The SNPs - single 'letter' mutations in the DNA code of the PCSK1
gene - were more common in individuals who were obese than in the 
normal weight controls. The three SNPs identified in the study were 
also associated with childhood obesity, as well as less extreme 
weight gain. The PCSK1 gene is an enzyme that converts inactive
appetite-controlling hormones into their active form. PCSK1 also
controls the hormones insulin and glucagon, which regulate the 
metabolism of sugars and carbohydrates in the body. Professor 
Philippe Froguel, who led the study, suggested that the SNPs may 
be responsible for altering the PCSK1 gene to a more active form, 
which could alter appetite levels in the body.
Most genes associated with obesity have been linked to rare genetic
conditions that lead to extreme weight gain, and these genetic 
mutations are not common in the general population. 'This is the 
first time that we have found a strong link between common 
mutations and common obesity in the PCSK1 gene', said Professor 
Froguel. 'We all react differently to an environment that is 
becoming more and more similar, and the reason we react differently 
is in part genetic in origin'.
In another study, US researchers at Baylor College of Medicine in 
Houston, Texas, showed that the
(…)
- The Daily Telegraph 7/7/2008 'Famished gene is found and could 
help tackle obesity'
- The Daily Telegraph:
http://www.telegraph.co.uk/earth/main.jhtml?xml=/earth/2008/07/07/
scigene107 .xml
- Associated Press 6/7/2008 'Hardwired for fat: scientists identify
  obesity gene'
- Associated Press:
http://afp.google.com/article/ALeqM5jSRiOUpbpkYmolsj1QqjS-T130Fg
- BBC News Online 16/7/2008 'Gene tags 'fuel obesity epidemic''
- BBC News Online:
http://news.bbc.co.uk/1/hi/health/7508034.stm
- The Daily Telegraph 15/7/2008 'Obesity will increase with each
generation, medical experts warn'
- The Daily Telegraph:
http://www.telegraph.co.uk/news/worldnews/northamerica/usa/2302685/
Obesity-will-increase-with-each-generation%2C-medical-experts-
warn.html
Copyright (c) 2008 BioNews

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Stock #: 54415; Last modified: 14 Sep 2011



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