Presentation on theme: "GEORGE D. COMERCI, JR., MD,FACP, DAAPM PROFESSOR OF INTERNAL MEDICINE CO-DIRECTOR: PROJECT ECHO PAIN HEADACHE CLINIC, UNM PAIN CONSULTATION AND TREATMENT."— Presentation transcript:
GEORGE D. COMERCI, JR., MD,FACP, DAAPM PROFESSOR OF INTERNAL MEDICINE CO-DIRECTOR: PROJECT ECHO PAIN HEADACHE CLINIC, UNM PAIN CONSULTATION AND TREATMENT CENTER Update in Outpatient Internal Medicine for the Outpatientalist: 2013
What to expect…. Discussion of New Studies pertinent to the internist Update on New Disease Prevention Recommendations New Drugs, New uses for old drugs, News about drugs
Objectives Describe the clinical features of the H7N9 flu Discuss the relationship of statins to diabetes Discuss the emerging knowledge of the relationship of the human microbiome to disease Describe the possible relationship of exercise on dementia prevention Discuss the importance of mammographic breast density as this relates to mammography frequency Describe the indications for the PCV-13 vaccine Discuss new information about drugs
Clinical Findings in 111 Cases of Influenza A H7N9 [N Engl J Med.2013.368:2277-85] Novel avian-origin influenza virus appeared in China Data on 111 cases evaluated H7N9 virus identified by RT-PCR assay Clinical FindingsLab Findings Pneumonia: 97.3 %lymphopenia ARDS: 71.2%Inc. CK and AST Shock: 26.1% Death: 27%
Origin of the Novel Avian Influenza A H7N9 Virus. Morens DM et al. N Engl J Med 2013;368:2345-2348.
3 factors a pandemic make…. A substantial portion of the population should not be immune The virus should be capable of causing human disease Efficient human-human transmission*
Human Microbial Biosphere (Microbiota) The microbiota represents the communities of microorganisms that resides within (and on) us 10 times more microbial cells than human cells The microbiome is the genetic content of the microbial communities and is far more complex than the human genetic content Our symbiotic relationship to our microbial biosphere is usually commensal or of mutual benefit, but occasionally the relationship is pathologic We Are One with our Microbiota!
The Human Microbiome [Nutr Clin Pract.2012;27:201-214] The Microbiome is studied via gene sequencing techniques not by culture techniques The Microbiome is most similar in twins, differing some degree within family members and further differing amongst unrelated family members Infant gut microbiota resembles that of an adult by three years of age The microbiota is dramatically influenced by environment, foods, antibiotics, etc.
Microbiota of different body surfaces [Harrisons Principles of Internal Medicine.18 th ed. 2012]
Pharacometabonomic identification of a significant host- microbiome metabolic interaction affecting human drug metabolism [PNAS.106.2009] Can a host’s metabolic phenotype (their microbiota) influence drug metabolism? Acetaminophen Acet Sulfate Acet Glucuronide Acet N Acetylcysteine P-cresol is produced by certain gut microbes and competes for sulfation with acetaminophen Patients who were high producers of p-cresol had reduced sulfation and reduced metabolism of acetaminophen
Obesity-induced gut microbial metabolite promotes liver cancer through senescence secretome. [Nature.2013;499:99-103] Senescent cells develop a secretory profile consisting of inflammatory cytokines, chemokines and proteases (senescence associated secretory profile-SASP) Some of these SASP promote cell clearance but others promote tumorigensis Dietary changes that promote obesity change the gut of mice microbiota in such a way that production of deoxycholic acid (DCA) was increased which in turn increased SASP phenotype in hepatic cells favored tumorigensis and increased HCC This effect was reduced by administration of vancomycin which reduced DCA production
Energy-balance studies reveal associations between gut microbes, caloric load and nutrient absorption in humans. [AmJClinNutr.2011;94:58-65.] Indigestible carbohydrates and proteins account for 10-30% of total ingested energy The ability to “harvest” this energy is highly dependent upon the gut microbiota The microbiota of obese individuals is different than that of lean individuals. This study showed that a high caloric diet (3400 kcal/d) increased Firmicutes sp. and decreased Bacteriodetes sp. resulting in a net increased caloric absorption of 150Kcal/d
Duodenal Infusion of Donor Feces for Recurrent Clostridium dificile. [N Engl J Med.2013;368:407-414.] Question: Is duodenal infusion of donor feces effective for the treatment of recurrent Clostridium dificile infection. Methods: 43 patient who had failed a course of vancomycin for C dif colitis 17 received vancomycin 500qid x 4 D and subsequent colon lavage followed by infusion of donor feces 13 received vancomycin 500 qid x 14 D with bowel lavage 13 received vancomycin 500 qid x 14 D
Rates of Cure without Relapse for Recurrent Clostridium difficile Infection. van Nood E et al. N Engl J Med 2013;368:407-415
Microbiota Diversity in Patients before and after Infusion of Donor Feces, as Compared with Diversity in Healthy Donors. van Nood E et al. N Engl J Med 2013;368:407-415
We (our genome) and the microbiome are One! Variations in gut microbiome are affected by our immediate surroundings, our diet and drugs. Variations in gut microbiome can affect drug metabolism Variations in the gut microbiome may increase the risk of certain cancers Re-establishment of a damaged gut microbiome can eliminate disease
Meta-Analysis of Impact of Different Types and Doses of Statins on New-Onset Diabetes Mellitus [Am J Cardiol2013;111:1123e1130] Question: What is the specific the specific risk for developing DM associated with one statin compared with another and is there a relationship to dosage and DM Methods: Meta-analysis of RCTs between 1994-2012 Studies need have >1000 patients who were followed for > 1 year Endpoints New onset DM
Meta-Analysis of Impact of Different Types and Doses of Statins on New-Onset Diabetes Mellitus [Am J Cardiol2013;111:1123e1130] Results: 17 studies: 14 compared statin to placebo 3 compared high dose vs. moderate dose statin 11,3394 patients represented Rosuvastatin 20 mg/day: 25% relative increase in the risk for developing new-onset DM. Pravastatin 40 mg/day: lowest risk for DM, almost comparable with placebo treatment. Simvastatin 40 mg/day: approx. = Rosuvastatin 20 mg/day.
1 case of diabetes for every 4 cardiovascular events prevented. [Circ.2012.126;e282-284]
The Association Between Midlife Cardiorespiratory Fitness Levels and Later-Life Dementia: A Cohort Study [Ann Intern Med. 2013;158(3):162-168] Question: Is there an association between midlife fitness and all cause dementia? Methods: Study Center: Cooper Center Longitudinal Study Study Cohort: 19,458 persons who had an exercise treadmill test between 1999-2009 Exclusion Criteria: MI, stroke, chronic illness leading to disability, age>65. Fitness Level: quintiles according to METs on ETT
The Association Between Midlife Cardiorespiratory Fitness Levels and Later-Life Dementia: A Cohort Study [Ann Intern Med. 2013;158(3):162-168] Methods (cont.) Quintile 1: 8.1 METS Quintile 2: 9.4 METS Quintile 3: 10.4 METS Quintile 4: 11.3 METS Quintile 5: 13.3 METS Assessment at ages 70, 75, 80 and 85 years Dementia identified ICD-9 codes (primarily for Alzheimer- type dementia but also for vascular dementia)
The Association Between Midlife Cardiorespiratory Fitness Levels and Later-Life Dementia: A Cohort Study [Ann Intern Med. 2013;158(3):162-168] Results: Mean follow-up: 24 years Hazard ratio: Quintile 5 compared to Quintile 1= 0.64 No significant effect of educational level (mean =15 yr.) No significant difference in those with or without a history of stroke
Chronic Opioid Use is associated with increased DNA Methylation correlating with increased clinical pain. [ Pain.2013;154.15-23] Does chronic opioid therapy have pharmacoepigenetic effects which result in decreased opioid responsiveness? The pain response to opioids varies amongst patients Most patients develop tolerance to opioids Some develop hyperalgesia with opioids
Chronic Opioid Use is associated with increased DNA Methylation correlating with increased clinical pain. [Pain.2013;154.15-23] Methods Cohort 1:Addicts on methadone Cohort 2:Matched controls Cohort 3:Pain patients on 115.8 MEDs Cohort 4:Pain patients on no opioids Quantitative Analysis: OPRM 1 (Mu receptor gene) LINE 1 (transposone on mu receptor gene)
PCV13 Pneumococcal Conjugate Vaccine The “classic” vaccine (PPV23) is a 23 valent vaccine In use since 1983 No anamnestic response, ergo, immunity wanes PCV 13 is a conjugate made of a protein + a polysaccharide capsular antigen Large scale clinical trial data not yet available
Breast Cancer Screening JT is a 56 y/o female who presents for her yearly health exam. She has visited the Are You Dense website, wants to know her breast density “score” on her recent mammogram. She disagrees with your recommendation to have mammograms every 2 years and, furthermore, wants an MRI if her breasts are dense. Is breast density a risk for breast cancer? Does she need yearly mammograms if she has dense breasts? Should she have an MRI if her breasts are dense?
Breast Cancer Screening Breast “density” correlates with the degree of fat replacement of breast tissue Women with mammographically dense breast have a higher risk of invasive breast cancer Are You Dense, a breast advocacy group, has pushed for laws mandating that women be informed of the degree of density of their breast on mammography and have more aggressive screening if their breasts are dense on mammography [J Natl Cancer Inst;2013;105:1043–1049]
Outcomes of Screening Mammography by Frequency, Breast Density, and Postmenopausal Hormone Therapy [ JAMA Intern Med. 2013;173(9):807-816.] Purpose: To compare the benefits and harms of screening mammography frequencies according to age, breast density, and postmenopausal hormone therapy (HT) use. Prospective study from data from the Breast Cancer Surveillance Consortium (BCSC) mammography registries Data collected January 1994 to December 2008 11,474 women with breast cancer and 922,624 without breast cancer
Outcomes of Screening Mammography by Frequency, Breast Density, and Postmenopausal Hormone Therapy [ JAMA Intern Med. 2013;173(9):807-816.] Women aged 40 to 49 years: biennial mammography vs. annual is associated with increased risk of advanced-stage cancer (odds ratio [OR], 1.89 and large tumors (OR, 2.39). Women age 50 to 74 years: biennial mammography was not associated with increased risk of less favorable tumor characteristics regardless of breast density or HT usage. Triennial mammography WAS associated with higher grade lesions only in women with extremely dense breasts
New Drugs, New uses of Old Drugs, News about Old Drugs
Zolpidem 220% increase in ER visits due to toxicity (2005-2010) [JAMA.2013;309:2203] Impaired driving, especially women and elderly Women: 5mg IR/ 6.25 mg XR Elderly: [JAMA.2013 ;309:646] Increased risk of Hip Fracture in Elderly OR = 1.66 for hip fracture in nursing home residents [JAMA Intern Med. 2013 May 13;173(9):754-61.] [
Fake and Substandard Drugs “falsified drug” misrepresents identify, source or both “substandard drug”: fails to meet accepted standards of manufacturing production packaging distribution JAMA.2013.309.1693-1694
Fake and Substandard Drugs Supplements Life style drugs sildenafil Antimicrobials TB medications Malaria medications HIV medication Bull World Health Organ 2010;88: 247–248
Codeine A natural derivative of Opium A weak analgesic nearly on the bottom of the WHO pain ladder Converted to morphine by cytochrome P-450 enzyme 2 D6 (CYP2DR) CYP2DR activity exists as a spectrum of activity [slow metabolizers high metabolizers] 15% of Middle Eastern and Northern African patients are high metabolizers Clin Pharm & Therap.2012; 91:323-326 N. Engl. J. Med.2009; 361, 827–828 (2009).
Fluoroquinolones Severe neuropathy Usually during treatment Potentially irreversible Severe fluctuations in glucose levels http://1.usa.gov/17QhZK3
In summary…. The H7N9 influenza The increased risk of DM with rosuvastatin and simvastatin The complex role of the human microbiome in disease and metabolism The role of exercise in dementia prevention DNA methylation with chronic opioid usage Breast cancer screening and breast density PCV-13 vaccine Updates on Zolpidem, Codeine and Fake drugs